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boost: Various SunOS fixes.
meta-pkgs/boost,devel/boost-build,devel/boost-docs,devel/boost-jam,devel/boost-headers,
devel/boost-libs,devel/boost-mpi,devel/py-boost: Uodate to 1.86.0
Changelog:
New Libraries
* No new libraries.
Updated Libraries
* Atomic:
+ Use futex(2) system call on OpenBSD since recent OpenBSD versions have
removed support for syscall(2).
* Beast:
+ API Changes
o Added HTTP status code 418 I'm a teapot.
+ Fixes
o Narrowing conversion in read_size_hint_db().
o Overloads that are ambiguous when using default completion tokens.
o Misplaced static_assert in http::basic_fields move-assignment
operator.
o Underflow of bytes_transferred in WebSocket partial write
operations.
o websocket::stream::read_size_hint() does not exceed
read_message_max.
o Various warnings in tests.
o Error handling in SSL shutdown operations in examples.
o Annotate fallthrough case in zlib.
o Handling of expired timers in basic_stream::ops::transfer_op.
o Ambiguity in test::basic_stream constructor overloads.
o Partial parsing of the final chunk in http::parser.
+ Improvements
o Graceful shutdown in server_flex_awaitable example.
o Simplified awaitable examples.
o Added fuzzing targets.
o Remove superfluous uses of std::bind in some examples.
o ssl_stream does not use flat_stream.
+ Documentation
o ssl_stream and flat_stream marked as deprecated.
o net::ssl::stream is canonical in snippets and examples.
o Added SSL/TLS Shutdown Procedure section.
+ Acknowledgements
o tyler92, Ruslan Zakirov, Orgad Shaneh, Alexander Kernozhitsky
* Charconv:
+ Fixed support for PPC64LE architecture.
+ Fixed support for platforms like Alpine linux that provide the <
quadmath.h> header but not the compiled library.
+ Fixed first character pattern matching in from_chars for integer types.
+ Fixed overflow detection for integers with base greater than 10.
+ Added native support for std::float16_t and std::bfloat16_t instead of
using interchange formats.
* Cobalt:
+ Added support for asio::cancel_after
+ Made asio::deferred co_await-able, because it's asio's default token
+ Added noop utility
+ Added experimental support for stackful coroutines/fibers
+ Fixed movability of channel & coroutine types
* Compat:
+ Added bind_front.hpp, bind_back.hpp, invoke.hpp, mem_fn.hpp,
integer_sequence.hpp and type_traits.hpp.
+ Added function_ref.hpp.
* Container:
+ Fixed bugs/issues:
o GitHub #285: "devector<>::push_front asserts after clear()".
o GitHub #280: "Several containers don't support non-movable types
when move assigning".
o GitHub #279: "small_vector cannot go back to use stack space".
o GitHub #277: "Remove dep on boost::static_assert".
o GitHub #275: "Compilation fails if custom key comparison is used".
o GitHub #273: "flat_map/vector crashes on appends (memory
corruption)".
o GitHub #269: "flat_multimap::emplace not sorting elements under
GCC".
o GitHub #266: "small_vector<T> is misaligned on the stack in 32
bits".
o GitHub #259: "Global variables".
o GitHub #245: "flat_tree::insert ordered range doesn't assert
sorting".
o GitHub #241: "flat_map should support same interface as std::map".
* Core:
+ Added a boost/core/pointer_in_range.hpp header with a pointer_in_range
function template to check if a pointer is within a given range.
+ Fixed type_name for abstract classes. (#172)
+ Fixed boost/core/type_name.hpp compilation error with MSVC with
disabled native wchar_t type. (#173)
+ Added a workaround for an MSVC bug causing empty_value compilation
errors when it is used with a nested class. (PR#175)
* CRC:
+ C++03 is no longer supported; a C++11 compiler is required. (This
includes GCC 4.6 or later, and MSVC 10.0 (VS 2010) or later.)
+ Removed dependencies on Array, Config, Integer, and TypeTraits. The
library is now standalone.
* Filesystem:
+ is_empty operation is now better protected against concurrent
filesystem modifications.
+ On POSIX systems, is_empty now indicates error if invoked on a file
other than a regular file or a directory.
+ On Windows, fixed file_size and is_empty operating on symlinks rather
than the files the symlinks refer to. (#313)
+ directory_entry::refresh no longer throws an exception if the file
referenced by the entry doesn't exist. This makes directory_entry::
status and directory_entry::symlink_status, as well as methods based on
them, behave similarly to the equivalent standalone operations. The
fact that the file does not exist is still indicated via the error_code
returned by the corresponding directory_entry::refresh overload, or can
be seen by testing if the file type returned by directory_entry::status
or directory_entry::symlink_status calls is file_type::file_not_found.
(#314)
+ Fixed weakly_canonical testing path elements for existence relative to
the current path instead of the base path specified in the call, if the
input path was a relative path.
+ On Windows, fixed weakly_canonical producing incorrect result path when
the input path started with "..". (#311)
* Format:
+ C++03 is no longer supported; a C++11 compiler is required. (This
includes GCC 4.7 or later, and MSVC 12.0 (VS 2013) or later.)
* Function:
+ Removed dependency on Boost.TypeTraits.
+ Brought back the argN_type typedefs that were accidentally lost in
1.85.
* GIL:
+ Added
o Added tell() and error() functions to istream_device and
ostream_device classes (PR#747).
+ Changed
o Don't ignore custom color converter in color_converted_view
function (PR#726).
o Added workaround for conflict with min() and max() macros on WinAPI
(PR#745).
o The use of boost::filesystem in GIL is now configurable in CMake
via option BOOST_GIL_USE_BOOST_FILESYSTEM (PR#743).
+ Fixed
o Fixed convolution in convolve_2d (PR#723)
o Normalize Gaussian 2D kernel to avoid darkening (PR#725)
o Wrong buffer size in path string conversion functions for std::
wstring is fixed, avoiding buffer overflows when using I/O-related
functions with std::wstring paths (PR#746).
+ Acknowledgements
o Christoph Gringmuth, Christopher Kormanyos, nicolacandussi, Dirk
Stolle, Olzhas Zhumabek
* Graph:
+ Major update: C++14 is the new minimum standard; this was partly
dictated by dependencies (at least to C++11) and partly by choice. If
you require support for an older standard, please contact the
maintainer.
+ Remove direct dependency on Boost.Regex.
+ Fix several compilation errors caused by not explicitly including
common headers.
+ isomorphism: Fix docs, ignore vertex_max_invariant parameter in favour
of cheaply calculating upper exclusive bound, fix bug with Associative
Property Map, improve space efficiency from linear in the size of the
maximum invariant to linear in the size of g1.
+ boykov_kolmogorov_max_flow: Fix named parameter overload.
+ adj_list_edge_iterator: Fix maybe-uninitialized warnings.
+ hawick_circuits: Add a parameter to optionally limit the depth of the
search, causing a potentially suboptimal answer to be returned early.
+ disjoint_sets: Improve performance of link_sets by removing redundant
lookup of set representatives.
+ maximum_adjacency_search: Refactor and more tests.
+ property: Use BOOST_ATTRIBUTE_NO_UNIQUE_ADDRESS to remove wasted space.
+ labeled_graph: Fix remove_labeled_vertex so that it actually removes
the label too.
+ r_c_shortest_paths: Fix bug that the single-solution variant did not
always return the shortest path.
+ read_graphviz: Fix stack overflow (oss-fuzz issue 66719) and
non-keyword subgraph parsing.
+ Many miscellaneous improvements: broken links, typos, etc.
* Interprocess:
+ Fixed bugs:
o GitHub #191 ("vectorstream: support file sizes larger than INT_MAX
").
o GitHub #198 ("Minor fixes for documentation of offset_ptr").
o GitHub #202 ("Allow to map message_queue in anonymous memory").
o GitHub #207 ("cmake: link system libraries").
o GitHub #214 ("Doc: Fix github links").
* Intrusive:
+ Fixed bug GitHub #86: Invalid UTF-8 character in comment
* JSON:
+ Support for GCC versions older than version 5.0 is deprecated and will
stop in Boost 1.88.0.
+ source_location parameter was added to throwing accessor functions.
+ Parse option to tolerate invalid UTF-16 surrogate pairs, and produce
WTF-8.
+ Added accessor functions that return system::result.
+ Handle missing error case in direct parsing.
* LexicalCast:
+ Fixed conversion of std::basic_string_view and boost::basic_string_view
containing one or more \0 characters. Issue was introduced in 1.85.0.
* leaf:
+ More optimal verbose_diagnostic_info implementation.
+ Bug fixes.
+ Added [[nodiscard]] to class result<>.
* Locale:
+ Add support for custom allocators in conv::utf_to_utf
+ Don't build examples by default
* Log:
+ Added a workaround for windres.exe issue, when it is used in CMake to
compile event log resource files on MinGW-w64. (PR#231)
* Math:
+ Correct Bessel function results at infinity, see 1143.
+ Improve Non Central T numerical stability, see scipy20693.
+ Correct float_next/float_prior behaviour at infinity.
+ Prevent spurious underflow in non-central beta, see scipy20693.
+ Add improvement to Heuman Lambda precision.
+ Improve Skew Normal root finding, see 1120.
+ Lots of minor fixes and improved code coverage.
* Multiprecision:
+ Make sure eval_convert_to() does not terminate with super large
numbers, see 618.
+ Fix sinc implementation to match behavior of Boost.Math.
+ Fix divide-by-zero in cpp_int modulus operations.
+ Fix underflow behavior consistency for integers greater than 128-bits,
see 626.
* MySQL:
+ The long-deprecated functions query, start_query, execute_statement and
start_statement_execution (and their async equivalents) have been
removed.
+ Breaking changes to experimental APIs:
o The identifier class (client-side SQL formatting) has been removed.
Use the new format specifiers feature, instead.
o The required interface for custom formatters has been changed to
accomodate the new format specifiers API.
o any_connection::async_connect now requires that its connect_params
argument be kept alive until the operation completes. The overload
taking a const connect_params* has been removed.
o character_set::name is now a const char* instead of a string_view,
as MySQL character set names can't contain NULL characters.
o any_connection internal buffer is now limited to 64MB. If you need
to read or write rows bigger than that, increase
any_connection_params::max_buffer_size. connection and their helper
typedefs are not limited.
o Renamed any_connection_params::initial_read_buffer_size to
initial_buffer_size.
o Renamed pool_params::initial_read_buffer_size to
initial_buffer_size.
+ New experimental API: pipelines. Pipelines can increase efficiency by
coalescing several requests in a single network packet. Pipelines can
be used to run text queries, prepare, execute and close statements,
reset session state and set the connection's character set.
+ Client-side SQL formatting now supports ranges out of the box.
Formatting can be further customized using the new sequence function.
Use cases like batch inserts and batch lookups can be significantly
simplified using this functionality.
+ Client-side SQL formatting now supports format specifiers which modify
how values are formatted. {:i} formats a string as a dynamic SQL
identifiers, and {:r} outputs a raw unescaped
+ The static interface (static_results and static_execution_state) now
supports Boost.Pfr types using pfr_by_name and pfr_by_position. Added
underlying_row_t to support such types.
+ date and datetime can now be constructed from and converted to C++20
std::chrono::local_time.
+ Added any_connection_params::max_buffer_size, which allows to set a
limit to the connection's internal buffer.
+ Added is_fatal_error, which allows users can now distinguish between
fatal (which require closing and re-opening the connection) and
non-fatal error codes.
+ Added formattable_ref, a type-erased reference type that can refer to
any type satisfying the Formattable concept.
+ Fixed an ODR violation under MSVC which could cause crashes in release
builds when using Boost.MySQL with other code also using asio::
coroutine in different translation units.
* Odeint:
+ Added CMake Option BOOST_NUMERIC_ODEINT_NO_ADAPTORS to reduce
dependencies, see 82
+ Fixed CMake detection of MPI.
* Process:
+ Moved the old boost.process to v1 subfolder and inline namespace.
deprecated process/*.hpp v1 headers
+ Turned v2 into a compile library.
+ Fixed usage on alpine linux / musl
* Stacktrace:
+ Big new feature: stacktrace from arbitrary exception for Windows. std::
stacktrace::from_current_exception() now works on Windows platform.
Many thanks to huangqinjin for the implementation PR#159 Now on POSIX
and Windows the from_current_exception() function returns the
stacktrace of the current exception object as if the stacktrace was
captured at the point of throwing the exception.
+ Fixed inclusion of rarely used Windows SDK headers which can cause
conflict with other code using Windows SDK. Thanks to Marat Abrarov for
fixing the issue PR#157.
+ Build option boost.stacktrace.from_exception now properly works on
MacOS. Thanks to Peter Dimov for the fix PR#166.
+ Fixed a typo in assert expression. Thanks to Kilian Henneberger for the
bug report #164.
+ Fixed shadowing warnings. Thanks to Nigel Stewart for the bug report #
141.
+ Added dladdr minimal support for AIX. Many thanks to Cl??ment Chigot
for the implementation PR#114.
+ Added Boost::stacktrace CMake alias that refers to the best supported
implementation of Boost.Stacktrace on the platform. Thanks to Alex for
the feature PR#167.
+ Significant improvement of CMake: multiple fixes, added many new tests,
improved CI. Many thanks to Peter Dimov for all the improvements.
+ Fix addr2line work when the process is looked up via PATH. Thanks to
Schreischildkroete for the bug report and to Jens Richter for fix #72.
* Test:
+ Fix -Wundef in configuration step.
+ Fix unreachable return compilation error on MSVC.
* Unordered:
+ Added container pmr aliases when header <memory_resource> is available.
The alias boost::unordered::pmr::[container] refers to boost::unordered
::[container] with a std::pmr::polymorphic_allocator allocator type.
+ Equipped open-addressing and concurrent containers to internally
calculate and provide statistical metrics affected by the quality of
the hash function. This functionality is enabled by the global macro
BOOST_UNORDERED_ENABLE_STATS.
+ Avalanching hash functions must now be marked via an is_avalanching
typedef with an embedded value constant set to true (typically,
defining is_avalanching as std::true_type). using is_avalanching = void
is deprecated but allowed for backwards compatibility.
+ Added Visual Studio Natvis framework custom visualizations for
containers and iterators. This works for all containers with an
allocator using raw pointers. In this release, containers and iterators
are not supported if their allocator uses fancy pointers. This may be
addressed in later releases.
* UUID:
+ Major update.
+ C++03 is no longer supported, a C++11 compiler is required. (This
includes GCC 4.8 or later, MSVC 14.0 (VS 2015) or later, and
MinGW-w64.)
+ Decreased number of Boost dependencies from 39 (in total) to just 5.
+ Updated to reflect the newer RFC 9562.
+ Added generators for time-based UUIDs.
+ Many other improvements, see the revision history.
* Wave:
+ Replaced one use of vsprintf with the more secure vsnprintf
+ Fixed bug:
o #197: Improper signed overflow handling (UB and a missing division
check)
* WinAPI:
+ Added BOOST_USE_WINAPI_VERSION CMake option, which allows users to
specify the Windows version for Boost to target.
Updated Tools
* BoostBook:
+ DTD updated: constructor, copy-assignment and destructor elements are
now allowed inside method-group elements.
+ Many fixes and improvements in Doxygen-generated documentation:
o Fixed duplicate equal signs in Doxygen-generated enum value
initializers.
o Disabled alphabetical sorting of function arguments. The sorting
can be re-enabled by setting the new boost.sort.params XSL
parameter to 1.
o Added support for custom class member grouping. See Doxygen tags @
name and @{/@}.
o Added support for Doxygen references to classes, methods, enums,
variables, etc. (see @ref tag).
o Added support for @remark and @important tags.
o Added support for @parblock tags, which can be used to place
multiple paragraphs under a tag that expects a single paragraph as
an argument (e.g. @returns).
o Template parameter defaults that refer to implementation details
are now concealed, similar to function parameter defaults.
o Improved presentation of unnamed enums. Instead of showing a
synthesized name such as @0, the name is either omitted or is [
unnamed], if the name is necessary to introduce a link to the enum
documentation.
o Changed the "See Also" (@sa) blocks to be displayed inline, similar
to "Returns".
o Fixed presentation of multiple exception specifications (@throws).
o Added support for free form description of throwing behavior. If
the exception type after the @throws tag is "~" then the exception
type is omitted from the output, and the following description is
displayed directly in the "Throws" section.
o Removed redundant spaces in return types and template parameters.
* Build:
+ Includes release of B2 version 5.2.1.
boost: updated to 1.85.0
Version 1.85.0
New Libraries
Charconv:
A high quality implementation of <charconv> in C++11, from Matt Borland.
Scope:
A collection of scope guard utilities and a unique_resource wrapper, from Andrey Semashev.
Updated Libraries
Asio:
Fixed the async_result primary template's concept checking to correctly handle lvalue-qualified completion signatures.
Fixed some compile errors that could arise when using the bind_allocator, bind_executor, bind_immediate_executor and bind_cancellation_slot completion token adapters to adapt each other.
Changed the experimental::ranged_parallel_group operation so that it moves the completion_order vector when invoking the completion handler.
Fixed some warnings about deprecated implicit copy constructors on ip::basic_resolver_query, io_context::strand, and coroutine.
Updated the version specification used to initialise Winsock.
Fixed co_spawn to correctly propagate exceptions resulting from cancellation to the completion handler.
Added calls to std::launder to fix undefined behaviour in awaitable<> internal storage.
Added missing handling of the file_base::append flag in the Windows implementation of file support.
Updated the socket and descriptor implementations to add more cases where they will fall back to fcntl if a call to ioctl fails.
Fixed the boost/asio/experimental/parallel_group.hpp header so that it is self-contained.
Fixed a compile error that occurred when channels and experimental::coro were both used in the same translation unit.
Added missing CancellationSlot type requirements to documentation.
Fixed the documentation hyperlinks for the deduced return types of asynchronous operations' initiating functions.
Other minor documentation updates.
Atomic:
Added support for pause instruction on RISC-V.
Beast:
API Changes
The status code list has been updated to conform with the IANA registry.
Fixes
Unreachable code warning in buffers_cat.hpp.
Connection error handling in websocker_server_awaitable example.
Concurrent calls to async_write in advanced server examples.
zlib name conflicts with minizip.
host string should be updated after SSL_set_tlsext_host_name().
Improvements
asio::associator is specialized for bind_wrapper and bind_front_wrapper.
Add non-allocating overload for error category message function.
Documentation
Specifies when calling http::message::prepare_payload() is optional.
Operations affected by basic_stream::expires_after().
teardown() and async_teardown() are customization points.
Moving or copying http::serializer after first usage is undefined behaviour.
websocket::permessage_deflate should be configured before performing the WebSocket handshake.
bytes_transferred in http reads operations reports the number of bytes consumed by the HTTP parser.
Acknowledgements
Emile Cormier, JohannesWilde, yhzx233
Bimap:
Fixed heterogeneous lookup for side collections
Bind:
C++03 is no longer supported; a C++11 compiler is required. (This includes GCC 4.7 or later, and MSVC 12.0 (VS 2013) or later.)
Conversion:
Removed outdated mentions of boost::lexical_cast that is not part of the library any more. Thanks to Danil Sidoruk for the PR
Core:
Added a new boost/core/functor.hpp header with a functor class template for wrapping a raw function into a function object class.
Changed null_deleter, fclose_deleter and checked deleter definitions so that they don't bring namespace boost into argument-dependent lookup. Users may need to either explicitly qualify the namespace of the called function or add a using-declaration.
Filesystem:
path::generic_path and path::generic_string methods now remove duplicate directory separators in the returned paths.
v4: path::generic_path, path::generic_string, path::make_preferred and path::lexically_normal avoid converting between backslashes and forward slashes in path root names. For example, on Windows, path("\\\\\\\\?\\\\c:\\\\foo").generic_string() now returns "\\?\c:/foo" instead of "//?/c:/foo". Similarly, path("\\\\\\\\host/share/foo/..").lexically_normal() now returns "\\host\share".
v4: equivalent now indicates error if either one of the paths doesn't exist.
v4: absolute now returns a path with a trailing directory separator when the input path has an empty relative_path().
Added a unique_path overload taking a single error_code& ec argument. The overload generates a unique path using the default path model.
weakly_canonical now produces an absolute path if the input path is relative and contains no elements that exist in the filesystem.
Added a new copy_options::ignore_attribute_errors option for copy_file and copy operations. The new option allows to ignore possible errors while copying file attributes.
On Linux, copy_file backends based on sendfile and copy_file_range system calls will attempt to preallocate storage for the target file. This may reduce filesystem fragmentation and provide early error indication if there is not enough free space. Not all filesystems support this feature; file copying proceeds if storage preallocation is not supported.
On POSIX systems that support fdopendir, openat and related APIs defined in POSIX.1-2008, as well as on Windows, recursive_directory_iterator now uses file descriptors/handles instead of paths to query the file statuses and open nested directories during iteration. This makes directory iteration more resilient to concurrent modifications of the filesystem.
Removed APIs that were previously declared deprecated. In particular, path and recursive_directory_iterator member functions, is_regular, copy_directory, symbolic_link_exists, complete, copy_option, symlink_option, as well as boost/filesystem/convenience.hpp and boost/filesystem/path_traits.hpp headers were removed. Possible replacements for the removed components are mentioned in the documentation.
Support for path construction, assignment and appending from container types (e.g. std::vector<char>) is now disabled by default. Users can still enable this functionality by defining BOOST_FILESYSTEM_DEPRECATED. This functionality remains deprecated and will be completely removed in a future release.
Function:
C++03 is no longer supported; a C++11 compiler is required. (This includes GCC 4.7 or later, and MSVC 12.0 (VS 2013) or later.)
Geometry:
Improvements
Use if constexpr macro instead of condition macro
Pass strategy to sort by side
Add cmake files for clang/mac/darwin/arm64
Solved issues
Fix invalid set operations for CCW polygons
Fix compilation error with CUDA NVCC compiler
Fix buffer of linestring returning incorrect inner polygon
Fix union operation perturbing a point and returning wrong result
Fix union producing self intersections
Fix buffer issue by setting turns in closed clusters as non traversable
Fix compilation of converter and is_base_of
Various fixes of errors and warnings
Iterator:
Support for C++03 is deprecated and will be removed in a future release.
JSON:
Boost.Endian is now used to deal with endianness.
Aliases to Boost.System and Boost.Container components are deprecated and will be completely removed in 1.87.0.
Conversion of described classes supports private members.
Rvalue reference overload for visit.
Add conversion support for path-like types.
Parsing into described classes correctly considers inherited members.
Conversion of self-referential sequences is disabled.
Fixed reference handling in visit.
LEAF:
New API for transporting of error objects and exceptions between threads: try_capture_all.
result<T> able to transport exceptions captured via try_capture_all.
result<T> transporting dynamically captured error objects with improved efficiency.
Old make_shared_context/capture APIs are deprecated, will be removed in the next release.
Removed support for transporting of dynamicaly captured error objects in exceptions.
LexicalCast:
Significant rewrite of the internal logic to separate optimized and C++ Standard Library IO-based streams:
C++ Standard Library based streams now constructed in less cases leading to better performance;
less template instantiations and simpler code;
always use std::char_traits (do not use custom traits from input/output types as it leads to linktime or runtime errors);
fixed missuse of forward declared boost::array
support for volatile input types was dropped, following the C++ Standard Library trend.
Optimized conversions from std::basic_string_view and boost::basic_string_view.
Dropped dependency on Boost.NumericConversion and Boost.MPL. Fixed some cases of converting floting point types to arithmetics.
The library now compiles and works fine with -fno-sanitize-recover=integer.
Locale:
Fix linker issues due to missing typeinfo for char8_t in C++20 mode
Fix IConv compile flags when using ICU that has a bundled IConv
collator now throws on construction, if at all, as documented
collator no longer derives from std::collator to avoid possible type confusing when it isn't available for the current backend
Throw an exception when a faulty IConv library is detected (e.g. on some MacOS versions) instead of looping indefinitely
Reduce resolution of date_time to seconds as milliseconds where not easily available causing confusion
Math:
Added a new collection of optimization algorithms:
Differential Evolution
JSO
Random Search
CMA-ES
Fix Divide by 0 warning in NCF survival function
Fix constexpr depth limits of ccmath::floor/ceil fail for large arguments
Improve accuracy of quartic_roots
Fix cstdfloat numeric limits detection macro for libstdc++14
Fix for MSVC UCRT defining _Complex_I in complex.h when using C++14
Improve cstdfloat iostream
Fix redefnition of Boost.Config macros when using standalone mode in a non-standalone environment
Significant improvements to code coverage with associated bug fixes
MSM:
Major Update. Backend update (back11). Requires C++ 11. The documentation now uses it as default.
Big new feature. New front-end (PlantUML). Requires C++ 20
Various Bugfixes (compiler errors and warnings, priority of deferred events)
Multi-index Containers:
Fixed documentation errors.
Multiprecision:
Fix deprecation warnings from C++23 <limits>
Fix cpp_bin_float for small bit counts
Fix -Wpessimizing-move
Add covecov runs
Reduce truncation in cpp_dec_float multiplication
Fix complex_adaptor to match precision requirements
Fix for breaking changes in tommath
Fix for types that can be converted to number participting in arithmetic operator overloads
MySQL:
Breaking change: Boost.MySQL now requires linking to the new Boost.Charconv compiled library. This addresses a locale-dependency problem, increases efficiency, and powers the new client-side SQL formatting feature.
Added experimental support for connection pools, which allows re-using sessions and provides built-in reconnection and error handling.
Added experimental support for type-erased connections (any_connection class). any_connection is not a template and features simpler connection establishment and reconnection semantics.
Added experimental support for client-side SQL formatting functions (format_sql and format_sql_to). These allow securely composing queries client-side, which enables patterns like batch inserts, dynamic filters or PATCH-like updates.
Fixed a performance issue affecting close_statement and async_close_statement that could cause significant delays in application code.
Added support for building with BOOST_ASIO_USE_TS_EXECUTOR_AS_DEFAULT.
The deprecated execution interface (connection::query, connection::start_query, connection::execute_statement, connection::start_statement_execution and their async counterparts) now triggers warnings, as it's scheduled for removal in Boost 1.86.
Fixed a bug that caused some error messages to be truncated.
Warning cleanup. Builds are now clean from warnings when building with -Wall and -Wextra.
All field_view constructors are now stable.
The library internals have been rewritten using a sans-io approach to reduce complexity.
Odeint:
Breaking change: The library now explicitly requires C++14 instead of implicitly by including Boost.Math
Fix compatibility with Thrust 1.10.0
Removed C++03 Boost components:
Array
Bind
Function
Static_assert
PFR:
boost::pfr::get_name now can work with local types on some compilers. Thanks to Bela Schaum for the PR
Removed unused implementation details. Thanks to Denis Mikhailov for the PR
Allow throwing exceptions from boost::pfr::structure_to_tuple. Thanks to Denis Mikhailov for the bug report.
Field reflection trick is now described in the docs.
Random:
Added splitmix64 PRNG
System:
C++03 is no longer supported; a C++11 compiler is required. (This includes GCC 4.8 or later, and MSVC 14.0 (VS 2015) or later.)
The deprecated header boost/system/cygwin_error.hpp has been removed.
The original and obsolete (32 bit) MinGW is no longer supported. MinGW-w64 (both 64 and 32 bit) is still supported.
operator& now works for result<void> (by way of taking a nullary function.)
Added operator|= for result.
Stacktrace:
Big new feature: stacktrace from arbitrary exception. On some POSIX platforms std::stacktrace::from_current_exception() now returns the stacktrace of the current exception object as if the stacktrace was captures at the point of throwing the exception. Many thanks to Andrei Nekrashevich for prototyping the idea in libsfe.
Fixed memory consumption on Windows with boost_stacktrace_windbg.
Fixed library build with non hidden visibility.
Added a separate section on async signal safety to the docs.
STLInterfaces:
Change the behavior of iterator_interface for input iterators in C++20 and later, to more closely follow the C++20 concepts.
Remove hidden friends from iterator_interface to fix errors about concepts being redefined with different constraints.
Add a new v3 inline namespace, containing a new iterator_interface based on deducing this instead of CRTP (C++23 and later).
Add an rvalue-qualified overload of closure::operator(), to prevent dangling temporaries.
Test:
Respect library-spcific _NO_LIB macros
Supress MSVC C4702 from __builtin_unreachable() on intentionally unreachable code
Fix boost::function streaming error
Unordered:
Optimized emplace() for a value_type or init_type (if applicable) argument to bypass creating an intermediate object. The argument is already the same type as the would-be intermediate object.
Optimized emplace() for k,v arguments on map containers to delay constructing the object until it is certain that an element should be inserted. This optimization happens when the map’s key_type is move constructible or when the k argument is a key_type.
Fixed support for allocators with explicit copy constructors
Fixed bug in the const version of unordered_multimap::find(k, hash, eq)
Variant:
Removed more of the pre-C++11 macro and workarounds.
Wave:
Fixed bugs:
Emitted pragmas lack terminating newline
YYMARKER not updated when fill called on BOOST_WAVE_BSIZE boundary
Updated Tools
Build:
Includes release of B2 version 5.1.0.
boost: updated to 1.84.0 https://www.boost.org/users/history/version_1_84_0.html
boost: updated to 1.83.0 1.83.0 New Libraries Compat: A repository of C++11 implementations of standard components added in later C++ standards, from Peter Dimov and contributors. Updated Libraries Any: New boost::anys::unique_any C++11 class - an alternative to boost::any (or to std::any) that does not require copy or move construction from the held type. Ported documentation to Quickbook, Doxygen comments now used in code. Atomic: Fixed compilation of atomic_ref for const-qualified types. Note that even const-qualified atomic objects must still reside in read-write memory. Chrono: Remove use of deprecated Boost.Ratio features. Compat: Added latch.hpp, an implementation of std::latch (contributed by Christian Mazakas.) Added shared_lock.hpp, a (partial) implementation of std::shared_lock (contributed by Christian Mazakas.) Core: Added support for incomplete types to boost::core::type_name. Bit manipulation functions in boost/core/bit.hpp are now constexpr on recent MSVC versions (VS2019 update 5 and later.) Added boost::core::byteswap (an implementation of std::byteswap from C++23) to boost/core/bit.hpp. Moved the yield primitives sp_thread_pause, sp_thread_yield, sp_thread_sleep from SmartPtr implementation details to boost/core/yield_primitives.hpp. DLL: Fixed tests failures on glibc 2.36+, thanks to [Đoàn Trần Công Danh](https://github.com/sgn) for the bugreport. Filesystem: Added directory_entry::refresh method that updates internal cached file statuses for the directory entry identified by path. v4: directory_entry constructors and modifiers that initialize or modify the path now automatically call refresh. This may result in errors that were not indicated before and in v3, if querying the filesystem for file statuses fails (e.g. if the file does not exist). This new behavior is similar to std::filesystem. v4: directory_entry constructors and methods taking file_status parameters are removed. Users are recommended to remove these arguments and rely on directory_entry calling refresh internally. Added directory_entry member methods for checking the file type of the file, similar to std::filesystem. Added more methods for testing file status: is_block_file, is_character_file, is_fifo, is_socket and is_reparse_file. recursive_directory_iterator is now more likely to reuse information about the file type that is obtained during filesystem iteration. This may improve performance. File streams defined in boost/filesystem/fstream.hpp are now movable, if the standard library file streams are. Added a new header boost/filesystem/cstdio.hpp with a portable fopen overload that takes path as the first argument. This function is equivalent to std::fopen, except that on Windows it uses the native wide character encoding for paths. Generic path comparison operators are now more restricted to avoid potential ambiguities when user's code contains a using namespace boost::filesystem; directive. Fixed potential overload resolution ambiguity in users' code, where path constructors from iterators could interfere with function overloads taking a std::initializer_list argument. On Windows, added more workarounds for errors returned by various filesystems when creating a directory iterator. On Windows, relaxed access rights needed for querying file times. Flyweight: Added smart-pointer syntax to boost::flyweight (operator* and operator-> dereferencing to the underlying value). Fixed a situation where the mutex used by simple_locking was not recursive. Geometry: Improvements Drop dependencies and replace boost with std in several places Add missing headers so that all headers compile independently complying with Boost policy Check const Ring concept in calculate_point_order Solved issues Fix for union Fix for different geometry types Fix for convex hull Fix within algorithm for geometries having a pole as a vertex Various fixes of errors and warnings Iterator: Added is_iterator type trait that allows to test whether the type qualifies as an iterator type. filter_iterator now supports move-construction of the adopted iterator and the function object. JSON: The library now only throws system_error, except for when allocation failed, in which case std::bad_alloc is thrown. Serialization behavior can now be changed by serialize_options. Contextual conversions. Parser option for more precise number parsing. Support parse_options in stream operator<<. Parser option to allow Infinity and NaN JSON literals. Parser mode that only validates numbers rather than parsing them. Numbers with exponent larger than INT_MAX are accepted by the parser and treated as infinity. Fix object member functions that should provide strong guarantee. Fix ambiguity of end call when boost/range.hpp is included. Fix ASan failures. Fix error message for error::size_mismatch. Fix conversion into tuple with const elements. Locale: Bitwise/binary operators (left/right shift, binary and/or/xor/not) are no longer supported in message catalog files matching GNU gettext behavior Std backend on Windows uses the classic locale instead of the system locale when the requested locale does not exist (now same as on other OSs) localization_backend_manager::get is deprecated, use the generator instead New converter classes as alternative to to_utf/from_utf/between Fix UB on invalid index in format strings Fix conversion of UTF to e.g. iso-2022-jp on Windows without ICU Use long long as the count parameter for pluralized translations Fix movability and exception specification for some classes Log: Fixed a possible infinite loop in text_file_backend, when the size of a formatted log record exceeds the rotation_size limit. Math: Added Numerical evaluation of Fourier transform of Daubechies scaling functions 921. Added logcdf function to statistical distributions 946. Added support for C++23's <stdfloat> types 978. Fixed various -Wmaybe-uninitialized warnings Fixed round and trunc functions for non-representable numbers 968. Fixed calculation of mode for F-distribution 976. Fixed overflow in beta distribution 977. Fixed overflow in hypergeometric distribution 987. Fixed calculation of median absolute deviation with non-zero center 997. Mp11: Added an offset/from parameter to mp_from_sequence, mp_iota, mp_iota_c. Added mp_value, mp_list_v, mp_rename_v, mp_is_value_list. Added value list support to the primitives in <boost/mp11/list.hpp>. Added value list support to mp_repeat, mp_fill, mp_at, mp_back, mp_take, mp_pop_back, mp_drop, mp_insert, mp_erase. Multi-index Containers: Updated range insert in non-unique ordered indices to preserve insertion order of equivalent elements. Serialization now uses std::size_t instead of unsigned long to save and load the size of a multi_index_container (unsigned long is smaller than std::size_t in LLP64 data models). multi_index_container serialization class version has been bumped from 3 to 4 to reflect this change. Multiprecision: Fixed bug in rational adapter division 542. Fixed handling of global precsion changes in multi-threaded environments 552. Fixed cpp_int::eval_convert_to noexcept specification 555. MySQL: Major update. Stored procedures are now fully supported, including SELECT statements producing data and procedures with OUT parameters. Added support for multi-queries, which allows running multiple semicolon-separated statements with a single call. A statically-typed interface has been added, which allows parsing query results into user-provided types, using Boost.Describe structs and tuples. Text queries and prepared statements can now be executed using the new connection::execute and connection::start_execution functions (and their async counterparts). These superseed connection::query, connection::execute_statement, connection::start_query and connection::start_statement_execution. The new functions allow access to new features, like the static interface. A separate compilation mode has been added to help reduce build times. Sources are included in boost/mysql/src.hpp, which must be included in exactly one translation unit. Prepared statements can now be executed using an iterator pair to specify parameters, using statement::bind and connection::execute. This enables use cases where the number and type of parameters is not known at compile-time. Prepared statement execution now accepts parameters of type bool, std::optional and boost::optional. Added error codes and verified compatibility with MySQL v8.0.33 and MariaDB v11.0. Fixed potential problems with Windows' min() and max() macros. All assertions now use Boost.Assert. All exceptions are now thrown via Boost.ThrowException. Immediate completions are now correctly dispatched through the I/O object executor. Ratio: Change default BOOST_RATIO_VERSION to 2. Support for BOOST_RATIO_EXTENSIONS is now deprecated and will eventually be removed when Boost.Ratio is implemented in terms of the standard <ratio> header. Test: Added addtional older platforms to CI system (e.g. GCC 4.6) Fixed handling of uintptr_t to make sure it is portable on 32-bit systems 353. Fixed warnings from -Wdeprecated-copy-dtor and -Wdeprecated-copy-with-user-provided-dtor 375. Fixed handling of check_is_close for C++23 <stdfloat> types 382. Timer: Remove dependency on Boost.Chrono, Boost.System, and others. Disable deprecated headers unless BOOST_TIMER_ENABLE_DEPRECATED is defined. Unordered: Major update. Added boost::concurrent_flat_map, a fast, thread-safe hashmap based on open addressing. Sped up iteration of open-addressing containers. In open-addressing containers, erase(iterator), which previously returned nothing, now returns a proxy object convertible to an iterator to the next element. This enables the typical it = c.erase(it) idiom without incurring any performance penalty when the returned proxy is not used. URL: parse_query does not recreate string_view. url_view/string_view constructor requires non-url_view_base. IP-literal can be IPv6addrz. UUID: Improved generated x86 code for AVX targets. Removed the use of lddqu instruction on SSE3 targets, which penalize performance on Intel NetBurst CPUs but is more optimal on Skylake and later CPUs. Variant2: Added uses_double_storage(). Updated Tools Build: Includes release of B2 version 4.10.1.
boost & boost-libs: bump required GCC to 6, and state use of c++14. This gets the boost-libs package building on NetBSD/i386 8.0 again, the in-tree gcc 5.5 is apparently now too old. The c++14 bump comes from the warning emitted during build while trying to use earlier c++ standards: The minimum language standard to use Boost.Math will be C++14 starting in July 2023 (Boost 1.82 release) This despite this actually being the 1.82 release, it's still "just" a warning, but this gets rid of the warning, and the build succeeds.
boost: updated to 1.82.0 1.82.0 New Libraries Mysql: a C++11 client for the MySQL database server, based on Boost.Asio, from Ruben Perez. Updated Libraries Any: Now uses core/enable_if.hpp header instead of the deprecated utility/enable_if.hpp. Asio: Added the ability to customise the execution of a completion handler when an operation completes immediately. Added user-defined literals for buffer types. Added a new protocol type local::seq_packet_protocol to represent AF_UNIX with SOCK_SEQPACKET. Exposed sigaction() flags via an optional argument to signal_set::add. Change allocator_binder, executor_binder, and cancellation_slot_binder to support detection of unspecialised associators. Fixed ambiguity in associated_cancellation_slot<reference_wrapper>::get(). Fixed awaitable<> handling for completion signatures containing std::exception_ptr. Fixed experimental::channel<> try_send failure after a cancel. Fixed thread_pool::join() deadlock when the pool has no internal threads. Fixed pipe release() when using io_uring. Fixed data initialisation and cleanup issues in the io_uring backend. Fixed a dangling reference issue in the execution context overload of get_associated_executor(). Ensured buffered messages can still be received when an experimental::channel<> is closed. Fixed the any_completion_handler assignment operator. Constrained the constructor of any_completion_handler to prevent accidental copying Changed to use uint64_t for OpenSSL options, to match OpenSSL 3. Fixed deferred interoperability with multiple completion signatures. Fixed channels to add partial support for C++11 and C++14. Added missing handler tracking source location support to co_composed and 'awaitable<>' coroutines, when awaiting packaged asynchronous operations. Fixed some 'potential null dereference' and shadow variable warnings. Fixed a asio::buffer overload selection when used with const_buffers_1 and mutable_buffers_1. Disabled the runtime check for current Windows version unless targeting older Windows. Fixed compatibility between buffered stream wrappers and move-constructible streams, such as ssl::stream<>. Fixed basic_socket_acceptor::async_accept compatibility with lambdas that have a deduced return type. Fixed as_tuple compatibility with legacy completion tokens. Fixed redirect_error compatibility with new completion tokens. Fixed a potential, Windows-specific program termination due to exceptions that should have been allowed to escape from a destructor. Prevented inadvertent co_await of boolean expressions. Fixed result handling and support for custom allocators in experimental::use_coro. Fixed variadic template emulation for is_async_operation and completion_signature_of. Fixed incorrect reuse of a moved-from result in experimental::promise. Fixed experimental::coro use with custom allocators. Fixed seek_cur behaviour with stream-oriented files on Windows. Various additions and modifications to the documentation. Consult the Revision History for further details. Atomic: When compiled for x86 targets supporting AVX, vector instructions are now used for 128-bit atomic loads and stores. For 32-bit x86 targets, 64-bit atomic loads and stores with memory_order_seq_cst semantics will now issue a memory ordering instruction. Removed atomic<T>::storage() accessors and atomic<T>::storage_type types that were deprecated in Boost.Atomic 1.73. Users are recommended to use atomic<T>::value() and atomic<T>::value_type instead. Beast: Add error_codes use source_location tcp_stream uses the correct executor of the timer. error_categories use numeric ids file_body supports seek ContainerHash: Added an overload of hash_value for std::nullptr_t. Added is_tuple_like and an overload of hash_value for tuple-like types. Changed string hashing to use mulxp1_hash. This improves both quality and speed. Core: Added boost/core/snprintf.hpp header with portable definitions of snprintf, vsnprintf and their wchar_t counterparts. Deprecated boost/core/is_same.hpp and boost::core::is_same. The header will be removed in a future release. Users are advised to use Boost.TypeTraits or C++ standard library type traits instead. Marked boost::ref member functions and associated methods with noexcept. Marked boost::swap function with noexcept, depending on whether the type supports a non-throwing swap operation. Added boost::core::launder, a portable implementation of std::launder. Added BOOST_CORE_ALIGNOF, a portable implementation of alignof. Added boost::core::max_align_t, a portable equivalent of std::max_align_t, and boost::core::max_align, the alignment of max_align_t. Added boost::core::memory_resource, a portable equivalent of std::pmr::memory_resource from C++17. Added boost/core/serialization.hpp, a collection of primitives allowing libraries to implement Boost.Serialization support for their types without including a Serialization header and thereby making their libraries depend on Serialization. Added boost::data, an implementation of std::data. Added boost::size, an implementation of std::size. Updated boost::span to use boost::data which adds support for range construction from an std::initializer_list. Added boost::identity, an implementation of std::identity. This facility has been moved from Boost.Functional. DLL: Avoid implicit cast from size_t to uint32_t Filesystem: Fixed compilation errors that could have been caused by path conversion constructors being too permissive on the accepted arguments. v4: path::remove_filename now presesrves the trailing directory separator. Added path::remove_filename_and_trailing_separators, which removes the filename and directory separators preceding it from the path. This behavior is similar to path::remove_filename in Filesystem v3, but is also usable in v4. Added path::replace_filename, which replaces filename in a path. Updated implementation of the library version selection to avoid ODR violations. On Windows, added a workaround for querying file attributes for files in SMBv1 shares. Previously, directories in SMBv1 shares could have been reported as regular files. This does not affect SMBv2 or later. Geometry: Major improvements Support geographic buffer for (multi)linestrings and (multi)polygons Improvements Comparable distance: Add support for dynamic geometries Support covered_by() for box, geometry combinations Solved issues WKT: allow tabs and new lines Fixes for union Various fixes in examples Breaking changes The WKT output presentation of an empty polygon is now POLYGON() to make it consistent with other geometries Histogram: Replace detail::span and detail::make_span with implementations in boost::core Documentation improvements Protect usage of std::min and std::max in some cases, contributed by Han Jiang (min,max macros are illegially set by popular Windows headers so we need to work around) Added test to catch usage of unprotected min,max tokens in the library in the future Fixes to support latest clang-14 and deduction guides in gcc-11+ JSON: set_at_pointer. boost::hash support. Caller-provided serializer storage. value_to supports missing elements for std::optional. Fix parser suspend inside an escape character. Make sentinel() return a unique pointer. Locale: get_system_locale and dependents will now correctly favor LC_ALL over LC_CTYPE as defined by POSIX utf8_codecvt::out returns partial for trailing (UTF) surrogates Add boost::locale::util::locale_data to parse a locale boost::locale::info::encoding() result is now in uppercase as documented, e.g. "UTF-8" instead of "utf-8" Support M49 country codes such as en_001 or en_150 Treat en_US_POSIX as an alias for the C locale Improve error for missing segmentation support (i.e. without ICU) Fix compiler warnings Math: Deprecated C++11 support: We now require C++14 as a minimum standard. Our minimum tested compiler versions are now Clang-5, GCC-5 or MSVC-14.1. Added Estrin's method for polynomial evaluation. Fix various issues in non-central distributions to allow for larger non-centralities see 939. Added CMake install target. Fix special_functions.hpp to disable anything which can't be used in an exception-free environment. Get condition number calculation working in C++14. Fix constexpr table driven functions to avoid massive slowdown when the code is not actually constexpr, see 923. Improve tanh_sinh boundary handling, see 894. Add Linux arm64, s390x and Apple M1 testing, fix up test cases to handle 128-bit long doubles. Improve constexpr math functions to better handle infinities and NaN's. Make the integrators const-correct. Fix tanh_sinh integrator in case the function underflows, see 898. Don't use std::cbrt as some platforms still don't support it. Stop non-central T from raising spurious FE_INVALID exceptions, see 892. Fix binomial distribution edge case. Improve ibeta handling of very small arguments, see 884. Improve ibeta handling of infinities and NaN's, see 878. Improve error handling in powm1, see 781. Improve root-finder bracketing to bracket faster when the exponent is super-large or small. Fix root finding edge cases, see 873. Lots of miscellaneous warning fixes. Add assertions when using features which require C++17 for better error messages when invoking the compiler in a lower std version. Multi-index Containers: Serialization now uses unsigned long instead of collection_size_type, and multi_index_container serialization class version has been bumped from 2 to 3 to reflect this change. Reading old archives may fail for custom archive types giving special treatment to collection_size_type values: if this is the case, globally define the macro BOOST_MULTI_INDEX_ENABLE_SERIALIZATION_COMPATIBILITY_V2 to ensure backwards compatibility in reading operations. Maintenance work. Multiprecision: Deprecated C++11 support: We now require C++14 as a minimum standard. Our minimum tested compiler versions are now Clang-5, GCC-5 or MSVC-14.1. Added a new forward declaration header. Update Eigen interoperability so we no longer rely on Eigen's details, see 479. Add Cmake install target. Fix cpp_dec_float construction from string in standalone case for better error handling, see 499. Remove redundent definitions when in C++17 mode, see 530. Fix the error handling in standalone itrunc and ltrunc. Fix potentially uninitialized storage when parsing octal strings. Add arm64 and s390x CI testing. Add some missing expression template unpacking code for powm, see 506. Nowide: Add convert_string overload accepting a (std::)string instance Add quoted to output (quoted UTF-8) paths (std::filesystem or boost::filesystem) to streams PFR: Implemented the boost::pfr::is_implicitly_reflectable and the machinery for specializing aggregates as reflectable or not Implemented boost::pfr::get by type of an element in the aggregate. Implemented the BOOST_PFR_ENABLED macro to detect library support for reflection Fixed missing terminating character Fixed the boost/pfr/config.hpp compilation on older compilers Workaround for broken C++17 stuctured binding in old compilers Avoid -Wzero-as-null-pointer-constant warnings Fixed multiple typos, thanks to Denis Mikhailov for the fixes. Added missing #pragma once Multiple fixes and improvements for the docs. Process: Added management for extern processes to V2 (still experimental) Deprecated wait_for & wait_until in V1 - they will be removed in the future! Stacktrace: Fixed typos in docs and comments, thanks to Chocobo1 for the PR Fixed multithreading flag detection for backtrace_create_state if BOOST_STACKTRACE_BACKTRACE_FORCE_STATIC is defined. StaticString: Boost.Core string_view and std::string_view interoperability Test: Fixed several unused variable warnings Fixed sprintf deprecation warnings Fixed undefined behavior in basic_cstring::rfind Added CI through Github Actions Unordered: Major update. Added node-based, open-addressing containers boost::unordered_node_map and boost::unordered_node_set. Extended heterogeneous lookup to more member functions as specified in P2363. Replaced the previous post-mixing process for open-addressing containers with a new algorithm based on extended multiplication by a constant. Fixed bug in internal emplace impl where stack-local types were not properly constructed using the allocator of the container which breaks uses-allocator construction. URL: Add url::format with automatic percent-encoding URL router example set_params convenience function Support implicit conversions to string_view Parsing constructors are implicit string_token::arg has virtual destructor and slice protection Support BOOST_URL_DISABLE_THREADS Improvements and Bug fixes: WIN32_LEAN_AND_MEAN macro redefinition warning Comparison differentiates absent and empty components Detect hier_part_rule with empty-port-like segments Segments comparison as if normalized works above root hier-part path-rootless considers invalid segments port as number is set to 0 when it overflows ipv4 to string overflow detection algorithm Variant: Now uses core/addressof instead of the deprecated utility/addressof.
boost: Update to 1.81.0
Changelog:
Version 1.81.0
New Libraries
* URL: A library for parsing, modifying, and printing URLs using only C++11,
from Vinnie Falco and Alan de Freitas. Features include fast compilation,
strong invariants, and strict compliance using a memory-friendly approach.
Updated Libraries
* Asio:
+ Added the consign completion token adapter, which can be used to attach
additional values to a completion handler.
+ Added any_completion_handler<>, which can be used to type-erase
completion handlers.
+ Added experimental::co_composed to enable lightweight implementations
of user-defined asynchronous operations using C++20 coroutines.
+ Add range-based experimental::make_parallel_group() overloads.
+ Added any_completion_executor, a type-erased wrapper for executors that
are associated with completion handlers.
+ Added missing context query to use_future's executor.
+ Added nothrow constructor overloads to execution::any_executor<> and
any_io_executor.
+ Optimised representation of empty execution::any_executor objects to
improve the performance of copy and move operations.
+ Added an associated_cancellation_slot specialisation for std::
reference_wrapper.
+ Changed I/O objects to return their executors by const reference.
+ Changed associated to use deduced return types for all two-argument get
functions.
+ Fixed spawn implementation to catch unhandled exceptions and rethrow
them outside of the spawned "thread".
+ Fixed spawn to ensure the completion handler is dispatched through the
correct executor.
+ Fixed cleanup of of terminal-state spawn "thread" objects.
+ Fixed spawn and co_spawn implementations to dispatch cancellation
handlers on the correct executor.
+ Changed semantics of 'dispatch' to mean the executor is used as-is.
+ Deprecated the execution::execute customisation point and sender/
receiver facilities.
+ Added a C++11 parallel_group example.
+ Fixed example code to not use the deprecated resolve conversions.
+ Fixed an ambiguity in experimental::channel_traits specialisations.
+ Added a specialised channel implementation for the for R(error_code)
signature.
+ Made cancelled() public on the async_compose 'self' object.
+ Added io_executor_type and get_io_executor to the async_compose 'self'
object.
+ Fixed implementation of release() for Windows overlapped handles.
+ Enabled deferred awaiting for experimental::coro, regularised
experimental::use_coro, and fixed allocator handling.
+ Cleaned up experimental::promise and made it an asynchronous operation
object.
+ Constrained post/defer overloads on ability to require blocking.never.
+ Changed descriptor implementation to fall back to fcntl if ioctl fails
with ENOTTY when setting non-blocking mode.
+ Fixed Xcode deprecation warnings related to use of sprintf.
+ Fixed the arguments passed to select_reactor::run when it is run on an
internal thread.
+ Fixed compilation errors when BOOST_ASIO_DISABLE_SMALL_BLOCK_RECYCLING
is defined.
+ Updated detection of C++20 coroutine support on clang 14 and later.
+ Changed standard library feature detection to always enable std::
invoke_result when targeting C++17 or later.
+ Fixed detection of return type deduction with MSVC.
+ Updated the asynchronous operation requirements to relax the
requirements on the associated executor.
+ Added io_uring to the implementation notes.
+ Consult the Revision History for further details.
* Beast:
+ Add buffers_generator
+ Add beast::http::message_generator
+ Added buffer_ref, so beast buffers can be used with asio.
+ Support for per-operation cancellation
+ C++20 awaitable examples.
+ websocket per-message compression options
+ websocket timeout option api
+ multiple content length error
+ Support for default-completion and rebind
* Container Hash:
+ Major update.
+ The specializations of boost::hash have been removed; it now always
calls hash_value.
+ Support for BOOST_HASH_NO_EXTENSIONS has been removed. The extensions
are always enabled.
+ All standard containers are now supported. This includes std::
forward_list and the unordered associative containers.
+ User-defined containers (types that have begin() and end() member
functions that return iterators) are now supported out of the box.
+ Described structs and classes (those annotated with
BOOST_DESCRIBE_STRUCT or BOOST_DESCRIBE_CLASS) are now supported out of
the box.
+ hash_combine has been improved.
+ The performance (and quality, as a result of the above change) of
string hashing has been improved. boost::hash for strings now passes
SMHasher in 64 bit mode.
+ The documentation has been substantially revised to reflect the
changes.
* Core:
+ empty_value members are now marked as constexpr.
+ Added fclose_deleter, a deleter that calls std::fclose on a pointer to
std::FILE.
+ Bit manipulation utilities in boost/core/bit.hpp now explicitly require
unsigned integers on input. (#129)
+ bit_width now returns int instead of a value of the input argument
type. This follows resolution of LWG3656.
* Describe:
+ To allow the inclusion of enumerators.hpp, bases.hpp, and members.hpp
when the option -pedantic is used, the invocation of
BOOST_DESCRIBE_ENUM has been moved from modifiers.hpp into a separate
header, modifier_description.hpp. As a consequence, modifiers.hpp no
longer includes enum.hpp. Code that has been relying on this implicit
inclusion may fail, and will need to be fixed to include enum.hpp.
* DLL:
+ Fixed path_from_handle implementation for Windows platforms, thanks to
@SaltfishAmi for the bug report 57.
* Filesystem:
+ Deprecated: path construction, assignment and appending from containers
of characters, such as std::vector<char> or std::list<wchar_t>, is
deprecated in v3 and removed in v4. Please use string types or
iterators instead.
+ Deprecated: boost/filesystem/path_traits.hpp header is deprecated and
will be removed in a future release. The header contained
implementation details of path and should not be used in user's code.
+ Previously deprecated APIs will now generate compilation warnings on
use. To suppress these warnings, BOOST_FILESYSTEM_ALLOW_DEPRECATED
macro can be defined when compiling user's code.
+ Fixed compilation due to a missing include on POSIX systems that do not
support *at APIs. (#250)
+ On Windows prior to 10, added a workaround for network share filesystem
that produces ERROR_INVALID_PARAMETER when constructing directory
iterators. (PR#246, #245)
+ On Windows, fixed weakly_canonical failing with an
ERROR_INVALID_FUNCTION error code if the path started with the "\\?\"
prefix. (#247)
+ Added support for std::string_view, boost::string_view and boost::
container::string (as well as respective wchar_t counterparts) in path
constructors, assignment and appending operations. (#208)
+ path constructors, assignment and appending operations taking a pair of
iterators will no longer accept iterators with value types that are not
one of the supported path character types.
+ On Windows, improved compatibility of directory_iterator with various
mounted filesystems and Wine releases prior to 7.21. (#255, #266)
+ On Windows, deduplicated files are now reported as regular files rather
than reparse files. (#262)
* Fusion:
+ Added fusion::identity_view (PR#240)
+ Added support for associative sequences on fusion::transform_view (PR#
239)
+ Fixed compilation for the case when fusion::reverse_view used with an
associative sequence (PR#237)
+ Fixed Clang 13 -Wdeprecated-copy warnings (PR#261)
+ A small dependency reorganization. Now boost::ref and boost::
noncopyable are used from Boost.Core (PR#249)
+ Added CI testing on Linux and MacOS for clang and gcc, fixed CI testing
on Windows (PR#245, PR#236)
+ Improved docs and fixed typos (#234, PR#235, PR#238)
* Geometry:
+ Solved issues
o #1048 Index: Fix dangling references when Indexable is returned by
value by IndexableGetter
o #1076 Union: in rare cases it might miss one polygon
o #1081 Union: due to precision it might miss interior rings
+ Bugfixes
o #1063 Intersection: fix a bug in intersection of simple spherical
polygons
o #1064 Formulas: fix a consistency issue in geodesic direct formulas
o #1088 Point: Fix regression for custom point types
o Various fixes for missing include files, warnings, C++20
compilation errors and documentation
* Histogram:
+ Major update.
+ Added new accumulators::fraction to compute fractions, their variance,
and confidence intervals
+ Added interval computers for fractions: utility::clopper_pearson,
utility::wilson_interval, utility::jeffreys_interval, utility::
wald_interval which can compute intervals with arbitrary confidence
level
+ Added utility::confidence_level and utility::deviation types to pass
confidence levels as probabilities or in multiples of standard
deviation for all interval computers, respectively
+ Fixed internal sub_array and span in C++20
* Iterator:
+ function_output_iterator now supports perfect forwarding of the
assigned values to the wrapped function object. (PR#73)
+ Fixed compilation of constructing a function_input_iterator from result
of post-incrementing another function_input_iterator. (#75)
+ The result of post-incrementing an iterator based on iterator_facade
now supports operator->. (it++)->foo is equivalent to (*it++).foo,
which was supported before.
* JSON:
+ Added object::stable_erase.
+ Added parse overload for std::istream and operator>> for value.
+ Added rvalue ref-qualified accessors for value.
+ Conversion traits were redesigned.
+ Added conversion support for described classes and enums, std::optional
, std::variant, and null-like types (including std::nullptr_t, std::
nullopt_t, and std::monotype).
+ Added non-throwing conversion from value to user types.
* LexicalCast:
+ Fixed compilation while casting volatile arithmetic types. Thanks to
Giovanni Cerretani for the bug report #50.
+ Removed usage of deprecated headers. Thanks to Michael Ford for the PR
PR#53.
* Locale:
+ Major update with some breaking changes.
+ C++11 support is now required, support for C++03 and earlier is dropped
+ Some enums have been converted to enum classes - Avoids name clashes
+ Replace -sICU_LINK_LOCALE & -sICU_LINK by fine-grained configuration
options as done in Boost.RegEx
+ Fix detection of libiconv allowing Boost.Locale to be build (again) on
some platforms
+ Remove use of and support for std::auto_ptr
+ Make the codecvt using wchar_t on Windows assume/use UTF-16 enconding
+ Performance improvements: Make basic_format, date_time & hold_ptr
movable, Fix use of format cache
+ Make Boost.Locale compatible with more ICU versions (especially the
tests)
+ Fix RTTI definitions for some classes (visibility issues)
+ Fix compatibility of the ICU backend with some libc++ versions
+ Fix return value of some operators to correctly return non-const *this
+ Fix int-overflow on negative roll of years in date_time
+ Handle or suppress many warnings which makes the build log cleaner
+ Add support for more Windows codepages
+ Fix support for Windows codepages like ISO-2022-JP
* Nowide:
+ Fix build failure of tests on MSVC
* Stacktrace:
+ The library does not use COM initialization any more. Thanks to Alex
Guteniev for the bug report, clarifications and PR PR#123!
+ The library now may use BOOST_STACKTRACE_BACKTRACE_INCLUDE_FILE macro
value while detecting the libbacktrace availability in b2, thanks to
Ben Gemmill for the bug report #115.
+ Added BOOST_STACKTRACE_BACKTRACE_FORCE_STATIC macro to force a single
backtrace_state static instance while using the libbacktrace. Thanks to
the Rasmus Thomsen for the bug report #118!
+ Avoid unresolved references when including only the boost/stacktrace/
stacktrace.hpp header. Thanks to the Long Deng for the bug report #116.
+ Optimized stacktrace printing by not calling strlen on Windows
platforms. Thanks to Alex Guteniev for the bug report #122
* PFR:
+ Improved detection of aggregate initializables in C++14 mode, thanks to
Denis Mikhailov for the PR PR#97.
+ Suppress clang-tidy warnings, thanks to Alexander Malkov for the PRs PR
#109, PR#104.
+ Use fold expressions if they are supported by the compiler. Thanks to
Jean-Micha?l Celerier for the PR PR#96.
* STLInterfaces:
+ Fix two ill-formed iterator_interface operators in pre-C++20 iterators
with a const value_type.
* System:
+ The macro BOOST_SYSTEM_DISABLE_THREADS can now be defined to disable
the use of <mutex> (e.g. on single-threaded libstdc++).
+ Added value_type, error_type, in_place_value, in_place_error to result
<>.
+ Added emplace to result<>.
* Unordered:
+ Major update.
+ Added fast containers boost::unordered_flat_map and boost::
unordered_flat_set based on open addressing.
+ Added CTAD deduction guides for all containers.
+ Added missing constructors as specified in LWG issue 2713.
* Variant:
+ Avoid recursive inclusion of headers, thanks to Nathan Sidwell for the
bug report #101.
+ Removed usage of deprecated headers, thanks to Michael Ford for the PR
PR#96.
+ Fixed compilation on clang in C++23 mode, thanks to Ed Catmur for the
PR PR#98.
* Variant2:
+ Added support for boost::json::value_from and boost::json::value_to.
Version 1.80.0
Known Issues
These are patches from library authors which were found too late to be fixed in
the release.
* Config
+ Support for libcpp15 which removes std::unary_function and std::
binary_function. Patch.
* Filesystem
+ Directory iterators may fail to construct for a network share on
Windows prior to 10, see PR#246 and #245. Patch.
+ On Windows, weakly_canonical fails to process paths that start with the
"\\?\" prefix, see #247. Patch.
+ On POSIX systems that don't support *at APIs, compilation fails due to
a missing include, see #250. Patch.
* Unordered
+ Containers are not in a valid state after moving, see #139. Patch.
+ Fix MSVC /RTCc build runtime failures. Patch.
New Libraries
* No new libraries.
Updated Libraries
* Asio:
+ Added a deduced trailing return type to all asynchronous operations, to
enable the new form of async_result for C++11.
+ Moved append, prepend, as_tuple, and deferred to the boost::asio
namespace, and made them compatible with C++11.
+ Made experimental::parallel_group compatible with C++11.
+ Added buffer() overloads for contiguous containers, such as std::span.
+ Added the ability for awaitable<>-based coroutines to directly co_await
operations that are packaged as function objects.
+ Changed spawn() to be a completion token-based asynchronous operation,
and added support for cancellation. The basic_yield_context token now
supports move-only and variadic result types. When targeting C++11 and
later, spawn() and basic_yield_context are implemented in terms of
Boost.Context directly.
+ Added the is_async_operation trait and async_operation concept.
+ Added the completion_signature_of trait.
+ Added converting move construction/assignment to posix descriptors,
serial ports, pipes, Windows object_handle, Windows stream handles, and
Windows random-access handles.
+ Added release() member functions to pipes, Windows stream handles, and
Windows random-access handles.
+ Enabled support for Endpoint implementations that return void pointers
from their data() member functions, as per the documented Endpoint type
requirements.
+ Removed all() and race() from experimental::promise, as experimental::
parallel_group covers this functionality.
+ Added source locations to exceptions and error codes produced by the
synchronous and asynchronous operations.
+ Fixed compatibility with OpenSSL 3.0.4 and later.
+ Fixed compatibility with with -masm=intel.
+ Explicitly stated that socket shutdown() calls are thread-safe with
respect to certain other synchronous operations on the same socket.
+ Optimised the move construction of I/O objects where only the executor
type differs.
+ Fixed the detection of std::invoke_result for clang/libc++.
+ Fixed an issue where experimental::parallel_group initiation
incorrectly moved arguments instead of forwarding them.
+ Fixed a sequencing issue in the implementation of post(), dispatch(),
and defer().
+ Fixed the awaitable<> implementation to propagate exceptions from
awaited initiation functions through the current completion handler.
+ Fixed detection of std::aligned_alloc with gcc 7.
+ Changed to avoid using the soon-to-be-deprecated std::aligned_storage
on newer compilers.
+ Fixed detection of std::aligned_alloc for older Apple platforms.
+ Removed faulty assertions from experimental::coro implementation.
+ Added defence against Qt-defined macros when building with Intel C++.
+ Changed the implementation of the select_reactor, on Windows, to ensure
that any exception resulting from failure to recreate its interrupter's
sockets will be allowed to propagate out through io_context::run().
+ Fixed various compiler warnings.
+ Updated all composed operations examples, and the C++11 timeouts
example, to use the new async_result form.
+ Added composed operation and coroutine examples for C++20.
+ Consult the Revision History for further details.
* Atomic:
+ Improved portability of endianness checks on ARM, AArch32 and AArch64
targets. (#59)
+ Fixed compilation with MSVC 14.0 (Visual Studio 2015) in C++17 mode. (#
61)
* Filesystem:
+ On Windows, added a fallback implementation for querying file
attributes in case if the file cannot be opened with
ERROR_ACCESS_DENIED error. This may allow status and symlink_status to
succeed for system files and directories that are not reparse points or
symlinks. (#234)
+ On Windows, added a workaround for FAT/exFAT filesystems that produce
ERROR_INVALID_PARAMETER when querying file attributes. This affected
status and symlink_status, which reported that files do not exist, and
directory iterators, which failed to construct, as well as other
dependent operations. (#236, #237)
+ Worked around a compilation problem on RTEMS. (PR#240)
+ On Linux, corrected switching to sendfile copy_file implementation if
copy_file_range failed with ENOSYS in runtime. The sendfile fallback
implementation used to skip the filesystem type check and could fail
for some filesystems.
+ On POSIX systems supporting openat and related APIs defined in
POSIX.1-2008 and on Windows Vista and later, improved protection of
remove_all against CVE-2022-21658 that was implemented in the previous
release. The previous fix could still result in removing unintended
files in certain conditions. Other systems remain vulnerable.
* GIL: NOTICE: We are planning BREAKING switch to C++17 as minimum required
C++ language version in one or two releases after Boost 1.80 (#676)
+ Added
o GSoC 2020: Added Perona-Malik anisotropic diffusion algorithm (PR#
500)
o GSoC 2020: Added histogram class and related functionality (PR#499)
o GSoC 2020: Added histogram equalization feature (PR#514)
o GSoC 2020: Added histogram matching algorithm (PR#515)
o GSoC 2020: Added ability to stack images either horizontally (
hstack) or vertically (vstack) (PR#506)
o GSoC 2020: Added adaptive histogram equalization algorithm (PR#516)
o GSoC 2020: Added Standard Hough Transform and circle rasterization
(PR#512)
o GSoC 2020: Added Bresenham's algorithm for line rasterization (PR#
512)
o GSoC 2021: Added rotation of image by arbitrary angle around its
center (PR#565)
o GSoC 2021: Added rasterization support for ellipse based on "An
Efficient Ellipse-Drawing Algorithm" by Jerry Van Aken (PR#585)
o Added image constructor from compatible view (PR#520)
o Added inverse function for affine matrix3x2 (PR#527)
o Added standard morphological transformations (PR#541)
o Added for_each_pixel overload for any_image (PR#648)
o Added C++17 polymorphic memory resource typedefs for image class (
PR#529)
+ Changed
o BREAKING: The required minimum C++ version is changed from from
C++11 to C++14. Currently, large parts of GIL still compile with a
C++11 compiler. However, there is no guarantee that it stays that
way, and any compilers that do not support at least C++14 are
considered unsupported as of now.
o BREAKING: any_color_converted_view() is deprecated and will be
removed in the next release. Use color_converted_view() instead,
which provides the same feature.
o BREAKING: apply_operation for any_image is deprecated and will be
removed in the next release. Use variant2::visit instead, which
provides the same feature. (PR#656)
o Moved numeric extension to core (PR#573)
o Added support for C++17's <filesystem> (PR#636) The availability of
the std::filesystem is detected automatically, unless the
BOOST_GIL_IO_USE_BOOST_FILESYSTEM macro is defined that forces the
preference of the Boost.Filesystem.
o Renamed pixel_multiply_t to pixel_multiplies_t and pixel_divide_t
to pixel_divides_t (PR#655)
o Renamed io/dynamic_io_new.hpp to io/detail/dynamic.hpp (PR#653)
o Moved function construct_matched into boost::gil::detail namespace
as it was only used by other implementation details (PR#653)
o Made packed_pixel trivially copyable and assignable (PR#679)
o Replace deprecated libtiff v4.3 typedefs with C99 fixed-size
integers (PR#685)
+ Removed
o BREAKING: Removed support for GCC 5 (PR#572)
o Removed deprecated.hpp (PR#627)
+ Fixed
o Fixed conversion from RGB to HSL (PR#505)
o Fixed conversion from RGB to signed CMYK (PR#522)
o Removed unnecessary numeric cast in hsv.hpp (PR#530)
o Fixed default constructor for homogeneous_color_base for reference
pixel elements (PR#542)
o Fixed returning reference to local temporary object in
subchroma_image_view (PR#556)
o Added missing header guards in diffusion.hpp (PR#568)
o Fixed any_image_view<>::const_t (PR#526)
o Fixed C++20 incompatibilities in I/O extensions (PR#617)
o Ensured all examples build without errors (PR#628)
o Fixed convolve_2d for images with float32_t channel model (PR#577)
o Fixed for_each_pixel for non-1d iterable views (PR#621)
o Fixed: is_equal_to_sixteen in PNG I/O was less-than test (PR#650)
o Re-allow devicen_t with two components (PR#654) It was
unintentionally removed in Boost 1.72
o Fixed memory leak in image class for empty dimensions (PR#649)
+ Acknowledgements
o Cypre55, Samuel Debionne, Mike-Devel, Edward Diener, Peter Dimov,
Omar Emara, Dhruva Gole, Nicolas Herry, Eugene K, Avinal Kumar,
Gaurav Kumar, Marco Langer, Pranam Lashkari, Mateusz ??oskot,
Giovanni Mascellani, Debabrata Mandal, Gopi Krishna Menon, Ren??
Ferdinand Rivera Morell, Felix Morgner, Harshit Pant, Paul92, Andr
?? Schr?der, Scramjet911, Siddharth, Dirk Stolle, Prathamesh
Tagore, theroyn, Olzhas Zhumabek
* Graph:
+ Bug fixes:
o Fix bug in stoer_wagner_min_cut where vertices are not merged at
the end of each mincut phase (#286)
o Fix conversion warning for return type of strong_components (#293)
o Fix compilation failure of boykov_kolmogorov_max_flow named
parameter overload (#232)
+ General code improvements:
o Remove redundant call to combine in astar_search_no_init_tree (#260
)
o Remove redundant child_idx argument of d_ary_heap_indirect<>::child
(#261)
o Improve documentation for traversal categories (#303)
+ Acknowledgements
o Viktor Pti, Sebastian Brockmeyer, Etienne dg
* Histogram:
+ Fixed segfault in indexed when trying to iterate over histogram with
axes of zero size (physical or logical) under certain conditions
+ Removed previously deprecated API
o class accumulators::thread_safe: use accumulators::count<T, true>
o Methods accumulators::sum::large and accumulators::sum::small: use
accumulators::sum::large_part and accumulators::sum::small_part
o Type alias algorithm::reduce_option: use algorithm::reduce_command
o Template function axis::traits::static_options: use axis::traits::
get_options
o Template function axis::traits::static_is_inclusive: use axis::
traits::is_inclusive
o Type alias indexed::range_iterator: use indexed::iterator
o Type alias indexed::accessor::reference: use indexed::accessor::
const_reference
* Iterator:
+ For C++11 and later, added support for perfect forwarding of values
written to function_output_iterator. (PR#73)
+ Added protection against writing to function_output_iterator a result
of dereferencing another function_output_iterator.
* JSON:
+ Added non-const value::at overloads.
+ Added the ability to manually choose endianness of the platform.
+ Added string::subview() overload.
+ Fixed segfault in array::erase(it).
+ Fixed low performance of serialize on libc++.
+ Fixed ambigious conversion to std::string_view on GCC 8.
+ Fixed parsing on big-endian platforms.
+ Fixed handling of comment after trailing comma.
* LEAF:
+ API breaking change: throw leaf::exception(....) now becomes
leaf::throw_exception(....)
+ Fixed a bug in support for a rare build configuration (exception
handling enabled, diagnostics disabled)
+ Using nullptr instead of 0 throughout
+ Fixed pedantic warnings
* Locale:
+ Deprecated support for C++03 and earlier, C++11 will be required in the
next release
+ Provide -sICU_LINK_LOCALE as a temporary replacement for -sICU_LINK
which is incompatible with Boost.Regex. -sICU_LINK_LOCALE and -
sICU_LINK are deprecated and will be replaced by ICU_*_NAME options to
be compatible with Boost.Regex
+ Fix UB/assertion failure in the ICU collator implementation when
transforming empty strings
+ Fix some issues related to visibility of classes in shared libraries
(Unix only)
+ Fix compatibility with C++20 mode
+ Fix compatibility with BOOST_USE_WINDOWS_H
+ Fix build failures due to missing includes
+ Handle or suppress many warnings which makes the build log cleaner
* Log:
+ Bug fixes:
o Fixed binding incorrect local address in UDP socket-based
syslog_backend when IPv6 address is used for the syslog server. (#
181)
o Added a workaround for a bug in libstdc++ from gcc 11.2. When
max_size_decor was used on a formatting stream, std::codecvt::
do_length incorrectly accessed the input buffer and caused a buffer
overflow.
+ See changelog for more details.
* Math:
+ Deprecated C++11 support: from 2023 we will require C++14 as a minimum
standard. This will mean GCC-5 or MSVC-14.1 as a minimal requirement.
+ Add constexpr fma support, see 734.
+ Add support for the Chatterjee Correlation Coefficient, see 770.
+ Added support for the logarithm of the PDF for all the distributions.
+ Improve support for building with no exception or RTTI support.
+ Some minor bug fixes for [sub 1]F[sub 1] corner cases, see 778.
* Multiprecision:
+ Mark C++11 support as deprecated: from 2023 we will move to requiring
C++14 as a minimum standard level. That will drop support for GCC
versions prior to 5 and MSVC prior to 14.1.
+ Fix conflict between boost/cstdfloat.hpp and this library.
+ Clean up lots of gcc and clang warnings.
+ Fix input streaming of composite types (complex, interval rational)
where there is a trailing delimeter in the stream and no whitespace.
+ Fix constexpr integer square root where the input is 1, 2 or 3.
+ Add missing #include of <memory> to float128.hpp.
+ Correct 2-arg constructor for class number to prevent ambiguity in some
cases.
+ Correct and make more consistent behaviour of divide-by-zero in
gmp.hpp.
* Multi-index Containers:
+ Maintenance work.
* Nowide:
+ Major performance improvement for Bulk I/O with files
+ basic_filebuf: Fix wrong return value of sync when fflush failed
+ basic_filebuf: Fix possible undefined behavior in a corner case when
nothing was actually written but buffer is in "write" mode
+ basic_filebuf: Limit putback of characters (i.e. pbackfail) only
allowing putback of buffered characters (may be only 1 character)
* Optional:
+ Added specializations for std::hash<boost::optional<T>>. This is a
breaking change for programs that define such specializations
themselves. For more details see specs.
* STLInterfaces:
+ Fix #53: "missing 'typename' prior to dependent type name
'C::const_iterator'"
+ Fix #54: "Concept check fails on .data() of a view on contiguous
iterator_interface instantiations"
+ New additions to make it easy to write views and view adaptors that
work like, and interoperate with, the ones in the standard library:
o Add workalikes for C++23's std::bind_back() and std::
range_adaptor_closure for pre-C++23 code.
o Add templates closure and adaptor to make writing view adaptors
easier, following the examples in P2387.
* System:
+ When an error_code is converted to std::error_code and then back to
error_code, the original is now restored, if possible.
+ Reworked the conversion from error_category to std::error_category to
avoid the one-time allocation that shows up on leak checkers.
+ Added a constructor that allows replacing the source location of an
error_code, and a corresponding assign.
+ Added a converting constructor to result.
* Unordered: Major update:
+ Refactor internal implementation to be dramatically faster
+ Allow final Hasher and KeyEqual objects
+ Update documentation, adding benchmark graphs and notes on the new
internal data structures
* Utility:
+ In string_view/string_ref, fixed max_size returning incorrect value. (#
91)
+ Removed noexcept specifier from string_view::compare as it may throw on
some input arguments. (#94)
+ In string_view/string_ref, added support for calling substr with no
arguments. (#96)
+ Added string_view::contains methods that were introduced in C++23. (#93
)
+ In string_view, added asserts in remove_prefix/remove_suffix methods to
enforce the precondition that the prefix/suffix length does not exceed
the string view size. The previous (undocumented) behavior of silently
clamping the prefix/suffix length is deprecated and will be removed in
a future release. (#92)
* Wave: Fixed bugs:
+ #24: Line numbers wrong after conditional section
+ #160: one test fails with error C2660 and error C2440 under msvc /
permissive- mode
+ #161: BOOST_WAVE_THROW_NAME_CTX does not result in a context callback
and always throws
+ #162: When Boost headers are included in the preprocessed translation
unit, Wave fails in boost/integer.hpp(99)
Updated Tools
* Build:
+ Includes release of B2 version 4.9.2.
Version 1.79.0
Known Issues
These are patches from library authors which were found too late to be fixed in
the release.
* Boost.JSON array::erase can segfault, see #692. Patch.
New Libraries
* No new libraries.
Updated Libraries
* Asio:
+ Added bind_allocator.
+ Added file_base::sync_all_on_write flag.
+ Added missing implementation of basic_file::release().
+ Added per-operation cancellation support to signal sets.
+ Exposed recycling_allocator as part of the public interface.
+ Added the nodiscard attribute to a number of functions.
+ Added OpenSSL 3.0 compatibility.
+ Added support for adopting an existing SSL* into an ssl::stream<>.
+ Enabled executor_work_guard<> in all build configurations.
+ Enabled movable socket iostreams when using clang.
+ Fixed bind_cancellation_slot and bind_executor compatibility with
legacy completion tokens.
+ Fixed associator specialisations for experimental::append and
experimental::prepend.
+ Fixed associated_allocator primary template.
+ Fixed io_uring implementations of async_receive_from for sockets and
write_some_at for files.
+ Fixed io_uring feature detection.
+ Fixed experimental::coro's per-operation cancellation.
+ Fixed memory management in experimental::promise's type-erased
completion handlers.
+ Fixed move operator= implementation for ssl::stream.
+ Fixed any_io_executor implementation to work when both
BOOST_ASIO_USE_TS_EXECUTOR_AS_DEFAULT and
BOOST_ASIO_SEPARATE_COMPILATION are defined.
+ Fixed implementation of basic_socket::at_mark() when using the
sockatmark() system call.
+ Changed the recycling allocator to use the default alignment as the
minimum alignment for allocations.
+ Added a workaround for apparent coroutine codegen bug with Apple's
clang.
+ On Windows, changed the file support to open files using the same
sharing mode as fopen().
+ On Linux, fixed UNIX domain sockets implementation to correctly handle
EAGAIN.
+ Fixed implementation of experimental::basic_channel::reset() and
experimental::basic_concurrent_channel::reset().
+ Fixed potential undefined behaviour in the experimental::promise.
+ Changed the co_spawn implementation to dispatch cancellation signals
through the executor in some circumstances.
+ Fixed various header inclusion issues.
+ Fixed various warnings.
+ A number of documentation enhancements, including:
o Added an overview of Asio's asynchronous model.
o Reworked reference and requirements documentation in terms of
asynchronous model.
o Updated documentation for dispatch(), post(), and defer().
o Documented per-operation cancellation for serial ports.
o Clarified the non-concurrency guarantees made for allocators.
o Reverted the io_context reference documentation to use
executor_work_guard.
o Added more detailed reference documentation to make_strand(),
make_work_guard(), ip::address_v4, ip::address_v6, experimental::
basic_channel, and experimental::basic_concurrent_channel.
o Re-arranged and extended the Overview documentation to cover
recently added features.
+ Added a C++11 example showing file descriptor passing over local
sockets.
+ Added C++14 examples of wrapping callback-based APIs in asynchronous
operations.
+ Consult the Revision History for further details.
* Assert:
+ source_location().file_name() and source_location().function_name() now
return "" instead of "(unknown)".
+ Added a source_location constructor from std::source_location.
+ Changed BOOST_CURRENT_LOCATION to more closely match the behavior of
std::source_location::current(), such as being usable at top level or
as a default function argument.
* Atomic:
+ Fixed compilation for Universal Windows Platform (UWP). (#54)
+ Added BOOST_ATOMIC_NO_DARWIN_ULOCK configuration macro. The macro
affects compilation on Darwin systems and disables ulock-based
implementation of waiting and notifying operations. This may be useful
to comply with Apple App Store requirements. (#55)
* Beast:
+ Added missing include for file_body test.
+ Fixed WebSocket handshake response on failure.
+ Fixed open append mode for file_posix and file_win32.
+ Fixed file open with append/append_existing flag on Windows
+ Fixed clang-cl UTF8 path handling for file_win32 and file_stdio.
+ Added ARM64 builds to drone CI.
+ Fixed async_base documentation link.
+ Added tests for file open in append/append_existing mode.
+ Updated CI to include gcc 11, clang 12, msvc 14.3.
+ Added individual tests to CMake workflow.
+ We'd love to know how you or your company use Beast, consider adding an
entry to the Companies and Individuals Using Beast list.
+ See the full Release Notes for a complete list of changes.
* Core:
+ Made boost::pointer_traits SFINAE friendly, addressing LWG3545. (Glen
Fernandes)
+ Added boost::allocator_traits that uses the individual allocator access
traits. This implementation supports C++03 and above. (Glen Fernandes)
+ Updated the allocator access traits to support most of the C++11
allocator model in C++03. (Glen Fernandes)
+ boost/iterator.hpp is deprecated and will be removed in a future
release. The header defines boost::iterator template, which is
equivalent to std::iterator in <iterator> header. However, since std::
iterator is itself deprecated in C++17, users are advised to remove
boost::iterator or std::iterator use from their code.
+ Added boost::core::verbose_terminate_handler, a utility function
intended to be passed to std::set_terminate that prints information
about the uncaught exception to stderr.
* Describe:
+ Enabled unions in BOOST_DESCRIBE_STRUCT and updated examples to check
std::is_union<T>.
+ Added example of defining a fmtlib class formatter.
+ Added example of defining a fmtlib enum formatter.
+ Added example of printing pointers to members.
* Filesystem:
+ v3: path::replace_extension now works in terms of v3 definition of path
::extension rather than v4.
+ Fixed compilation of path appending and concatenation operators with
arguments of types convertible to path or compatible string type. (#223
)
+ On POSIX systems that support fdopendir and O_NOFOLLOW and on Windows,
remove_all is now protected against CVE-2022-21658. The vulnerability
is a race condition that allows a third party process to replace a
directory that is being concurrently processed by remove_all with a
directory symlink and cause remove_all to follow the symlink and remove
files in the linked directory instead of removing the symlink itself. (
#224)
+ On Windows, in remove and remove_all implementation, use POSIX
semantics for file removal, when supported by the OS (Windows 10 1709
and later). When POSIX semantics is supported, the file name is removed
from the filesystem namespace as soon as the file is marked for
deletion, even if it is still open and in use. With legacy Windows
semantics, the file name remains present in the the filesystem
namespace until the last file handle to the file is closed, which
allows the file marked for deletion to be opened and prevents creating
new files with the same name. (#216)
+ On Windows, remove and remove_all now support deleting read-only
directories. Support for removing read-only non-directory files was
added previously.
+ On Windows, directory_iterator internal implementation has been
reworked to better utilize modern Windows APIs, which may improve
performance while handling symlinks.
+ On Windows, initialize internal WinAPI function pointers early, if
possible, to allow Boost.Filesystem operations to be invoked in global
constructors. This is only supported on MSVC, GCC, Clang and compatible
compilers.
+ On Windows, resize_file should no longer fail with an error if the file
to be resized is opened.
+ Disabled use of the statx syscall on Android prior to 11.0 (API version
30). The syscall is blacklisted by seccomp and causes process
termination in runtime. (#229)
+ Deprecated: boost/filesystem/string_file.hpp header is deprecated and
will be removed in a future release. The header is no longer included
by boost/filesystem.hpp by default. Users are advised to implement the
functionality themselves or migrate to other implementations.
+ Deprecated: Windows CE support is deprecated and will be removed in a
future release. Windows CE has been untested for many years and is
likely non-functional.
* Geometry:
+ Major change
o PR#977 Rescaling is turned off by default. This avoids many related
bugs in set operations and buffer.
+ Improvements
o PR#923 Added algorithm closest_points for cartesian point/geometry.
o PR#939 Added algorithm closest_points for other coordinate systems
and geometry combinations excl. boxes.
o PR#961 Added Web Mercator projection.
o PR#966 More efficient cartesian distance strategy used in simplify.
+ Solved issues
o #956 Result of simplify algorithm with incorrect closure.
o #962 Runtime error in R-tree deserialization due to load factor.
o #971 R-tree insertion time impacted by use of long double on ARM
platforms.
+ Bugfixes
o PR#936 Envelope of polygon containing pole.
o PR#948 Spherical and geographic envelope for near meridian
segments.
o PR#974 Spheroidal normalization utilities for NaN coordinates.
o Various fixes in set operations and buffer.
* Integer:
+ Optimized integer_log2 implementation to use bit operations internally.
This allows to employ bit instructions available on most modern CPUs. (
#31)
* IO:
+ Added boost::io::basic_nullbuf, a null stream buffer, and boost::
basic_onullstream, a null output stream (Glen Fernandes).
* Iterator:
+ In counting_iterator, added support for built-in 128-bit integer types
supported by gcc and clang and compatible compilers on some target
platforms.
+ Silenced gcc warnings about deprecated implicit copy assignment
operator in counting_iterator.
* JSON:
+ Standalone mode of the library is removed. Users who wish to continue
using standalone JSON can switch to the C++ Alliance fork.
+ Add std::error_code overloads.
+ Add boost::source_location to error_codes.
+ Add support for JSON Pointer.
+ Naturally grow string during serialization.
* LEAF:
+ Support for FreeRTOS and other embedded platforms
+ Improved diagnostic information
+ Improved configuration macros
+ BOOST_LEAF_CHECK using statement expressions under __GNUC__
+ Fixed symbol demangling bug
* Log:
+ General changes:
o In text_file_backend, added support for appending to a previously
written log file, when file rotation is used and log file names use
file counters.
o Breaking change: The file_collector interface has changed:
# scan_for_files method returns a scan_result structure that
contains information collected during the scan;
# is_in_storage method added for testing if a path refers to a
file within the target storage directory.
o Added a new invoke_manip stream manipulator that can be used for
injecting user's function into a stream output expression.
+ Bug fixes:
o Fixed file counter being set to zero if the user calls
text_file_backend::scan_for_files multiple times, and the second
and the following calls don't find any new files. (#179)
+ See changelog for more details.
* Multi-index Containers:
+ Improved the efficiency of count operations in ranked indices from O(
log(n) + count) to O(log(n)). Contributed by Damian Sawicki.
+ Maintenance work.
* Nowide:
+ Fix compilation issues on some platforms (e.g. GCC 11 on MinGW-w64 and
Cygwin)
+ Fix missing include when using BOOST_USE_WINDOWS_H and
WIN32_LEAN_AND_MEAN
+ Add sanity check when using boost::nowide::stat with boost::nowide::
stat_t
* Optional:
+ Fixed issue #98.
+ Fixed issue #92.
+ Added support for BOOST_NO_IOSTREAM.
+ Now aligned storage uses unsigned char rather than char to avoid UB.
+ Now using cv-unqualified value_type with placement new to avoid UB.
* Predef:
+ Version 1.14.0
+ Add detection of LoongArch (from Zhang Na).
* QVM:
+ Added constexpr under C++17
+ Improved single header distribution
* Smart Pointers:
+ Added boost::get_allocator_pointer to obtain the Allocator pointer from
the result of boost::allocate_unique (Glen Fernandes).
* System:
+ Added a boost::source_location parameter to throw_exception_from_error.
+ Added throw_exception_from_error overloads for errc::errc_t, std::
error_code, std::errc, std::exception_ptr.
+ result<T>::value now automatically supplies BOOST_CURRENT_LOCATION to
throw_exception_from_error via a default argument.
+ Added an errc::make_error_code overload taking a source location.
* ThrowException:
+ Added boost::throw_with_location, a more lightweight alternative of
BOOST_THROW_EXCEPTION for programs that do not use Boost.Exception.
* Unordered:
+ All containers have been updated to support heterogeneous count,
equal_range and find.
+ All containers now implement the member function contains.
+ erase_if has been implemented for all containers.
+ All containers have been updated to support heterogeneous erase and
extract.
+ Changed behavior of reserve to eagerly allocate.
+ Various warning fixes in the test suite.
+ Update code to internally use boost::allocator_traits.
+ Switch to Fibonacci hashing.
+ Update documentation to be written in AsciiDoc instead of QuickBook.
* Variant2:
+ Added operator<< for monostate.
* Wave:
+ C++11 now required for building Wave itself
+ Fixed bugs:
o #135: Comma operators in array subscripts are deprecated in C++20
o #137: Simple unknown directive => found_unknown_directive is not
called, stripped of pound.
o #138: Empty ifdef block does not emit line directive for missing
whitespace
o #143: Parsing __has_include() fails with trailing tokens
o #145: Sanitizer complains about reset_version()
o #147: bitwise operations between different enumeration types are
deprecated
Updated Tools
* Build:
+ Includes release of B2 version 4.8.2.
boost: Update to 1.78.0
Changelog:
Version 1.78.0
Known Issues
These are patches from library authors which were found too late to be fixed in
the release.
* Boost.Build silently skips installation of library headers and binaries in
some cases, see #104.
+ Fixed in PR#113, patch.
* Boost.Atomic fails to build when targeting UWP, see #54. Patch.
New Libraries
* No new libraries.
Updated Libraries
* Asio:
+ Added an io_uring backend that may optionally be used for all I/O
objects, including sockets, timers, and posix descriptors.
+ Added support for files, with new new classes for stream-oriented and
random-access files. This feature currently supports I/O completion
ports on Windows, and io_uring on Linux.
+ Added support for portable pipes on POSIX and Windows (when I/O
completion ports are available).
+ Added support for registered buffers, which are optimised when using
the io_uring backend.
+ Added experimental support for channels, that may be used to send and
queue completions as messages.
+ Implemented improvements to experimental::coro.
+ Disabled aligned_alloc on clang when using an MSVC runtime.
+ Changed to use a faster implementation for ip::network_v4::canonical().
+ Added template specialisations for common uses to improve compile time.
+ Reduced the size of io_context executors to a single pointer.
+ Increased the small object buffer size for execution::any_executor and
any_io_executor.
+ Fixed multi-signature handling when variadic templates are disabled.
+ Fixed compatibility with new versions of gcc and clang.
+ Fixed compilation on Solaris.
+ Fixed defence against Qt-defined macros when building with MSVC.
+ Improved error messages emitted by ssl facilities.
+ Fixed bind_executor compatibility with completion tokens.
+ Fixed build errors when BOOST_ASIO_USE_TS_EXECUTOR_AS_DEFAULT is
defined.
+ Added missing move assignment operator to awaitable<>.
+ Fixed an access violation when using coroutines with MSVC, due to
incorrect alignment of allocated memory.
+ Fixed a cleanup issue in experimental::parallel_group that occured when
the execution context was shut down with parallel operations still
pending.
+ Added clarifications to the documentation on concurrency hints.
+ Added documentation on error handling techniques for C++20 coroutines.
+ Fixed various warnings.
+ Consult the Revision History for further details.
* Assert:
+ Added source_location::to_string.
* Atomic:
+ Use process-local futex operations on Android for non-IPC waiting and
notifying operations.
+ Added support for Linux targets that only define SYS_futex_time64
syscall, such as riscv32.
+ Added a workaround for incorrect result of std::alignment_of on clang 8
for 64-bit types on 32-bit x86 targets.
+ Added a ulock backend for waiting and notifying operations on Darwin
systems since Mac OS 10.12, iOS 10.0, tvOS 10.0 or watchOS 3.0.
+ On Windows, corrected discrepancy between atomic-type
::always_has_native_wait_notify and the corresponding capability macros
when targeting Windows 8 or later. The library will now directly use
WaitOnAddress and related APIs from public headers and therefore
require user to link with synchronization.lib if the user requires
Windows 8 or later by defining BOOST_USE_WINAPI_VERSION, _WIN32_WINNT
or similar macros. The library is linked automatically on compilers
that support auto-linking (e.g. MSVC).
+ Added support for types with padding bits, except unions, on compilers
that provide a way to clear the padding bits. This feature is supported
by gcc 11 and MSVC 14.2 (compiler version 19.27) and newer, as well as
other compilers supporting similar intrinsics. On compilers that don't
allow to clear the padding bits, types with padding are still generally
not supported with the exception of 80-bit long double on x86 targets.
A new BOOST_ATOMIC_NO_CLEAR_PADDING capability macro is defined to
indicate when clearing the padding is not supported.
+ Initializing constructors of atomic_ref and ipc_atomic_ref no longer
use atomic instructions to clear the padding bits in the referenced
object. This reduces the cost of the atomic reference construction.
+ Initializing constructors of atomic and ipc_atomic are now constexpr
for enums, classes and floating point types. For classes and floating
point types, the constructors are constexpr if the compiler supports
constexpr std::bit_cast, the type has no padding bytes and no padding
is required to implement native atomic operations.
+ In accordance with C++20, default constructors of atomic and ipc_atomic
now perform value initialization of the contained object. For types
without a user-defined default constructor, this means the
default-constructed atomic will be zero-initialized.
+ Added a workaround for compilation error on AIX caused by the assembler
tool not supporting numeric labels. (PR#50)
+ Added a workaround for compilation error with Visual Studio 2015 prior
to Update 3. (#52)
+ See changelog for more details.
* Beast:
+ This maintenance update brings minor bug fixes and updated CI
reporting.
+ Fixed security vulnerability CVE-2016-9840 in zlib implementation.
+ Fixed WebSocket permessage_deflate implementation. This should result
in an increase in compression performance when using Beast WebSockets.
+ Removed the test stream and test framework's dependency on RTTI. You
can now use our handy test stream to check your embedded asynchronous
communications code!
+ We'd love to know how you or your company use Beast, consider adding an
entry to the Companies and Individuals Using Beast list.
+ See the full Release Notes for a complete list of changes.
* Core:
+ Added a generic implementation to <boost/core/cmath.hpp>, enabled when
BOOST_CORE_USE_GENERIC_CMATH is defined or when the platform does not
provide the necessary facilities in <cmath>.
+ Added boost::core::type_name, a utility function that returns the name
of a type as a string.
+ Added boost::span, a C++11 implementation of C++20's std::span (Glen
Fernandes).
* Describe:
+ Added has_describe_enumerators, has_describe_bases,
has_describe_members.
+ Added enum_to_string, enum_from_string.
+ Added relational and stream insertion operators.
+ Added descriptor_by_name, descriptor_by_pointer.
* DLL:
+ Fixed missing #include, thanks to Denis Blank (PR#54)
+ Dropped TravisCI in favor of GithubAction CI
* Filesystem:
+ v4: path::filename and path::iterator no longer return an implicit
trailing dot (".") element if the path ends with a directory separator.
Instead, an empty path is returned, similar to C++17 std::filesystem.
This also affects other methods that are defined in terms of iterators
or filename, such as path::stem, path::compare or
lexicographical_compare. For example, path("a/b/") == path("a/b/.") no
longer holds true. (#193)
+ v4: path::lexically_normal no longer produce a trailing dot (".")
element and omits a directory separator after a trailing dot-dot ("..")
element in the normalized paths.
+ v4: path append operations now consider root name and root directory in
the appended path. If the appended path is absolute, or root name is
present and differs from the source path, the resulting path is
equivalent to the appended path. If root directory is present, the
result is the root directory and relative path rebased on top of the
root name of the source path. Otherwise, the behavior is similar to v3.
(#214)
+ path::lexically_normal now converts directory separators to preferred
separators in the root name of the normalized paths.
+ Optimized overloads of path::assign, path::append, path::concat and the
corresponding operators to avoid unnecessary path copying and reduce
the amount of code redundancy.
+ On POSIX systems, fixed absolute(p, base) returning a path with root
name base.root_name() if p starts with a root directory. In such a case
p is already an absolute path and should be returned as is.
+ create_directories no longer reports an error if the input path
consists entirely of dot (".") and dot-dot ("..") elements. The
implementation is no longer using recursion internally and therefore is
better protected from stack overflow on extremely long paths.
+ On Windows, remove now supports deleting read-only files. The operation
will attempt to reset the read-only attribute prior to removal. Note
that this introduces a possibility of the read-only attribute being
left unset, if the operation fails and the original value of the
attribute fails to be restored. This also affects remove_all. (#216)
+ remove_all now returns static_cast< uintmax_t >(-1) in case of error,
similar to C++17 std::filesystem.
+ Fixed a linking error about unresolved references to
Boost.ContainerHash functions when user's code includes boost/
filesystem/path.hpp but not boost/container_hash/hash.hpp and the
compiler is set to preserve unused inline functions. (#215)
+ Added a workaround for MSVC and compatible compilers eliminating path
globals cleanup in release builds. This could lead to a memory leak if
Boost.Filesystem shared library was repeatedly loaded and unloaded in
the process. (#217)
* Geometry:
+ Improvements
o PR#894 Optimization and refactoring of rtree queries.
o PR#913 DynamicGeometry and GeometryCollection support in various
algorithms (undocumented for now).
o PR#922 DynamicGeometry and GeometryCollection support in distance
(undocumented for now).
+ Solved issues
o #867 Poor performance of rtree query iterator with nearest
predicate for big k.
o #870 Compilation error in boost::geometry::self_turns.
o #896 Assertion failure in get_turns with
BOOST_GEOMETRY_NO_ROBUSTNESS.
+ Bugfixes
o PR#906 Invalid result of buffer on macos-11 with clang-12.
o PR#921 Compilation errors with c++20 (various compilers) and gcc-5.
o Various fixes in set operations and buffer.
* JSON:
+ Standalone mode of the library is deprecated.
+ Allow external libraries to forward declare value_to and value_from.
+ Fixed signed integer overflow in number parsing.
+ Add support for /Zc:implicitNoexcept- on MSVC.
* Lambda2:
+ Added special cases in operator<< and operator>> when the first
argument is a stream, to allow std::cout << _1.
+ Added operator->*.
+ Added first, second.
* Log:
+ General changes:
o Updated detection of std::codecvt specializations for char16_t and
char32_t for compatibility with C++17 and later. (PR#159)
o Added support for C++17 std::byte type to receive methods of the
inter-process message queue.
o On Windows, when building the library for Windows 8 or later, the
library will use nt62 tag in the version namespace to denote the
target OS ABI. For example, the version namespace could be named as
v2_mt_nt62. This name will be part of all symbols exported by the
library. Use the BOOST_USE_WINAPI_VERSION macro consistenly when
building Boost and your code to request the minimum target Windows
version.
o Improved performance of SSSE3 and AVX2 implementations of the dump
stream manipulator.
o Added support for CMake build system. Only library build is
supported at this moment, Boost.Build is still used for running
tests.
+ Bug fixes:
o Fixed a race condition on POSIX systems in reliable_message_queue::
open_or_create or the equivalent constructor. Multiple threads or
processes calling open_or_create concurrently with sending or
receiving messages from the same queue could end up corrupting the
queue contents and potentially crashing the process. (#162)
o Added a workaround for b2 install failing on Windows because of
missing boost_log_setup library if
BOOST_LOG_WITHOUT_SETTINGS_PARSERS is defined. (#164)
+ See changelog for more details.
* Math:
+ Add support for cubic roots.
+ Add support for constexpr versions of various standard library math
routines.
+ Add support for Bezier polynomials.
+ Improve worst-case tanh-sinh integration performance.
+ Disable inadvertant use of integral types in integration routines.
+ Minor update for erf approximations when the result is with 2ulp of 1.
+ Allow Bernoulli code to be used on platforms with no atomic integers.
+ Improve the mode of the non-central Chi Squared distribution.
+ Improve certain edge cases for <cstdfloat> complex-valued elementary
functions, see #507.
* Multi-index Containers:
+ Added contains to key-based indices (issue #35).
+ Added merge operations to key-based indices. The functionality goes
beyond the standard specification for (unordered) associative
containers in a number of ways, most notably:
o The source index can be of any type, including non key-based
indices.
o Partial merge is provided: for instance, x.merge(y,first,last)
merges only the elements of y within [first,last).
+ Previous versions of splice for sequenced and random access indices
were destructive, i.e. elements were copy-inserted into the destination
and then erased from the source. Now, splice is based on node transfer
much as merge in key-based indices, and has been similarly extended to
accept source indices of any type: in fact, splice can be regarded as a
frontend to the same functionality provided by merge in key-based
indices. For reasons of backwards compatibility, the destructive
behavior of splice has been retained in the case that the source and
destination containers have unequal allocators.
+ The fact has been documented that index iterator types do only depend
on node_type and the position of the index in its multi_index_container
, (except for hashed indices, where uniqueness/non-uniqueness is also a
dependency). This has implications on the validity of iterators to
elements transferred by merge or splice. This property is a variant of
what has been called SCARY iterators in the C++ standard mailing lists.
SCARYness is currently (August 2021) not mandated for standard
containers.
+ Iterator SCARYness is now also preserved in safe mode.
* Multiprecision:
+ Rework rational_adaptor to remove dependency on Boost.Rational and
improve performance.
+ Fix issue with type_traits and clang, see #383.
+ Fixed buggy Lehmer's GCD routine, see #370.
+ Fix mpc_complex constructors so that lossy conversions are explicit,
see #363.
+ Correct miscellaneous configuration issues (Intel intrinsic usage and
Apple clang).
+ Correct some iostream operators for unsigned char types.
+ Correct mpq_rational conversions to integer types, see #342.
* PFR:
+ Added missing #include <memory> for inclusion of std::addressof
+ Fixed -Wzero-length-array warning when dealing with empty aggregates
+ Fixed compilation on msvc compilers <= 1920 (thanks to Alexey Romanov
aka @alexey-romanov)
+ Added basic CMakeLists.txt support (thanks to @pdimov aka Peter Dimov)
+ Multiple improvements for docs, including links to https://github.com/
apolukhin/pfr_non_boost
+ Added misc/strip_boost_namespace.sh script to remove boost:: and BOOST_
prefixes
* Predef:
+ Version 1.13.1
+ Fix spelling of "epoch".
+ Add missing parenthesis in sparc.h (from tkoecker).
+ Update documentation to use Rouge code styling and Amber general style.
* Regex:
+ Breaking Change: Change \B to be the opposite of \b as per Perl
behaviour.
+ Change w32_regex_traits.hpp so that windows.h is no longer included.
+ Fxed fuzzing related issues #151, #152, #153, #156.
* System:
+ Added support for source locations to error_code.
+ Added error_code::to_string, error_condition::to_string, error_code::
what.
+ system_error::what() now contains the source location, if present.
+ Added result<T, E = error_code>, a class holding either a value or an
error, defined in <boost/system/result.hpp>.
* Utility:
+ Library documentation converted to QuickBook (thanks to Alan de
Freitas, PR#79).
* Variant2:
+ Added <boost/variant2.hpp>.
+ Added unsafe_get<I>.
+ Added visit_by_index.
+ Added operator<<.
Updated Tools
* Build:
+ Includes release of B2 version 4.7.2.
boost: revert to just c++ (not c++); reported by @tnn
boost: updated to 1.77.0
1.77.0
New Libraries
Describe:
A C++14 reflection library, from Peter Dimov. Provides macros for describing enumerators and struct/class members, and primitives for querying this information.
Lambda2:
A C++14, dependency-free, single header lambda library, from Peter Dimov. Allows simple function objects to be constructed via expressions such as _1 + 5, _1 % 2 == 0, _1 > _2, or _1 == ' ' || _1 == '\t'.
Updated Libraries
Any:
Added boost::anys::basic_any - a data type with customizable Small Object Optimization whose instances can hold instances of any type that satisfies ValueType requirements (many thanks to Ruslan Arutyunyan @rarutyun). If you are not sure that you really need it, then use boost::any instead.
Started using GithubActions CI for additional testing
Asio:
Added support for cancellation of individual asynchronous operations.
Added the associator trait, used to generically forward associators.
Changed all asynchronous operations implemented in Asio to invoke their completion handlers as rvalue references.
Added support for asynchronous operations with multiple completion signatures.
Added operator&& and operator|| for awaitable<>, to allow coroutines to be trivially awaited in parallel.
Added the experimental::as_tuple completion token adapter.
Added the experimental::append completion token adapter.
Added the experimental::prepend completion token adapter.
Added the experimental::deferred completion token, whicih allows deferred execution of asynchronous operations.
Added the experimental::parallel_group class and experimental::make_parallel_group function.
Added experimental::promise, which allows eager execution and synchronisation of asynchronous operations.
Added the experimental::coro class template, a C++20 coroutine primitive with the ability to combine both asynchronous waiting (co_await) and yielding (co_yield).
Added move assignment to ssl::stream<>.
Changed co_spawn to dispatch the coroutine's initial step to the executor.
Enabled additional optimisations for any_executor and any_io_executor when used with asynchronous operations.
Added the nodiscard attribute to awaitable<>.
Increased the number of cached slots in the default recycling allocator.
Changed the default allocator behaviour to respect alignment requirements, to support over-aligned types.
Ensured the result strings are always initialised in reverse name resolution.
Fixed recursive template instantiation issues in use_awaitable_t::executor_with_default.
Fixed the any_io_executor equality operators to correctly return a result based on the target executor.
Fixed strand<> to avoid using a potentially moved-from executor.
Ensured gcc tests are not used for clang when detecting compiler features.
Disabled coroutines support for the clang shipped with MSVC.
Fixed compatibility with recent LibreSSL when OPENSSL_NO_SSL_INTERN is defined.
Fixed posix::basic_stream_descriptor move operations to work with non-defaulted executors.
Consult the Revision History for further details.
Atomic:
Added make_atomic_ref and make_ipc_atomic_ref factory functions for constructing atomic reference objects.
Added C++17 template argument deduction guides for atomic_ref and ipc_atomic_ref to allow omitting template arguments when they can be deduced from constructor arguments.
Beast:
This maintenance update brings minor bug fixes and updated CI reporting.
We'd love to know how you or your company use Beast, consider adding an entry to the Companies and Individuals Using Beast list.
See the full Release Notes for a complete list of changes.
Conversion:
boost::implicit_cast is now constexpr.
Fixed broken links.
Started using GithubActions CI for additional testing
Core:
boost/core/uncaught_exceptions.hpp has been modified for compatibility with Mac OS 10.4 and older.
DLL:
More runtime checks for malformed ELFs in boost::dll::library_info
In boost::dll::library_info use info from .dynsym ELF section if .symtab is empty or missing
List protected ELF symbols in boost::dll::library_info as they are available for import
Remove unneeded convert from wchar_t to char on POSIX environment, thanks to Vladislav Shchapov
Started using GithubAction CI for additional testing
Filesystem:
Introducing Boost.Filesystem v4. This new version of the library removes all deprecated features of v3 and also makes a number of breaking API changes intended to make Boost.Filesystem more compatible with std::filesystem introduced in C++17. The differences are described in the release notes and documentation using v3 and v4 tags and are also summarised in a separate section. Users can select Boost.Filesystem version by defining BOOST_FILESYSTEM_VERSION macro to either 3 or 4 when compiling their code. There is no need to separately compile Boost.Filesystem for each library version - a single binary supports both v3 and v4. Users should avoid using both v3 and v4 in the same application as this can lead to subtle bugs. Currently, v3 is the default. In a future release v4 will become the default, and eventually v3 will be removed. v4 is functional, but it is still a work in progress and there may be breaking API changes in the future.
v4: path::filename, path::stem and path::extension no longer consider root name or root directory of the path as a filename if the path only consists of those components. For example, on Windows path("C:").filename() used to return "C:" and path("C:\\").filename() used to return "\" and both will return an empty path now.
v4: path::stem and path::extension no longer treat a filename that starts with a dot and has no other dots as an extension. Filenames starting with a dot are commonly treated as filenames with an empty extension. The leading dot is used to indicate a hidden file on most UNIX-like systems.
New: Improved support for various path prefixes on Windows. Added support for local device prefix ("\\.\") and experimental support for NT path prefix ("\??\"). The prefixes will be included in the root name of a path. Note that using the prefixes with Boost.Filesystem v3 can lead to surprising results (e.g. path("\\\\.\\").stem() == "\\\\"). It is recommended to use the prefixes only with Boost.Filesystem v4.
Reworked path::lexically_normal implementation to eliminate some cases of duplicate dot (".") elements in the normalized paths.
New: Added runtime detection of the statx and getrandom system calls on Linux. This can be useful if the syscall is present at compile time but fails with ENOSYS at run time (for example, in Docker containers that restrict the syscall, even if available on the host).
New: Added support for disabling usage of various system APIs at library build time. This can be useful when a certain API is detected as present by the library configuration scripts but must not be used for some reason (for example, when runtime detection does not work on the target system). See the description of configuration macros in the library documentationfor for more details.
New: Added copy_options::synchronize_data and copy_options::synchronize options for the copy_file operation. These options allow to synchronize the written data and attributes with the permanent storage. These options are expensive in terms of performance, but allow to ensure reliability of the copied data. Note that copy_file performed implicit data synchronization on POSIX systems since Boost.Filesystem 1.74.0. This release adds support for more platforms and disables data synchronization by default while allowing the caller to explicitly request it.
Added handling of EINTR error code on POSIX systems for some system calls issued internally. In particular, EINTR could have been ignored on close, which on HP-UX would result in a leaked file descriptor.
In the copy_file implementations based on Linux sendfile and copy_file_range system calls, added handling of error codes indicating that a particular filesystem does not support the system call and fall back to the generic read/write loop. This should fix copy_file failing on eCryptFS and possibly other filesystems.
The copy_file_range system call is now used since Linux kernel 4.5, whereas previously it was only enabled since 5.3. The copy_file implementation will fall back to sendfile or read/write loop if copy_file_range fails to copy a given file across filesystems.
The copy_file implementations based on Linux sendfile and copy_file_range system calls will not be used on filesystems that are known to contain files with generated content. These system calls are incompatible with such files, and copying them would result in zero-sized files. The generic read/write loop will be used instead. Currently, the blacklisted filesystems are: procfs, sysfs, tracefs and debugfs.
In the copy_file implementation based on read/write loop, increased the maximum size of the buffer used for temporary storage and take into account the target filesystem block size for more optimal performance.
On Windows CE, calling current_path to obtain the current path for a process will now fail with an error instead of returning successfully with a root path. This platform does not support current directory. Changing the current path was already failing similarly in previous releases of Boost.Filesystem.
In canonical, fixed the check for a symlink referencing a directory above root, if an earlier symlink was resolved to an absolute path with a different root from the original path.
In canonical, added a limit for the maximum number of symlinks that can be resolved during the call. The limit is currently at least 40 symlinks.
On Windows, canonical and weakly_canonical will now use path::preferred_separator for the root directory separator in the resulting paths. This fixes "file not found" errors caused by Windows API not handling generic separators in UNC paths and paths that start with the Win32 filesystem prefix ("\\?\").
New: Added weakly_canonical overloads taking base path as an argument.
On Windows, weakly_canonical no longer fails with an error if the input path contains elements that do not exist in the filesystem but are cancelled by a subsequent dot-dot ("..") element. For example, weakly_canonical("C:\\a\\..") would previously fail if "C:\a" directory did not exist.
In read_symlink on Windows, corrected reparse point handling. The operation would return an empty path for some mount points (for example, created by Box cloud storage driver) and directory junction points that had empty print names. The new implementation now parses substitute name of the reparse point and attempts to reconstruct a Win32 path from it.
On Windows, file streams provided in boost/filesystem/fstream.hpp will use wide character paths on libc++ versions 7.0 and higher, when the standard library supports opening files with wide character paths.
On Windows, creating symlinks should no longer require elevated privileges, if Windows is configured in Developer mode.
With some compilers, global objects used internally in Boost.Filesystem are now destroyed after user's global destructors are called. This allows to call Boost.Filesystem methods during the program termination stage. In particular, this concerns the path locale that is used for character code conversion and can be installed by calling path::imbue. The supported compilers include MSVC, GCC and Clang, as well as other compilers that support customizing program initialization order through #pragma section (for MSVC-compatible compilers) or __attribute__ ((init_priority)) (for GCC-compatible compilers).
JSON:
value_to supports TupleLike types.
value_to and value_from support std::array and similar types.
Implicit conversion operator from string to std::string_view.
std::hash specializations for json types.
Fixed allocation errors in object and key_value_pair.
Fixed crash when constructing array from a pair of iterators that form an empty range.
LexicalCast:
Fixed assignment to an int of a floating point value that is out of representable range for int.
Started using GithubActions CI for additional testing
Log:
Fixed compilation for riscv32 target.
Mp11:
Added mp_intersperse, mp_split, mp_join
Multi-index Containers:
Maintenance work.
PFR:
A MurMur Hash based implementation of hash_combine() is now used to reduce collisions count and improve quality of boost::pfr::hash_value()
Visual Studio 2017 now supported in C++14 mode (thanks to Denis Mikhailov aka @denzor200)
Issues found by inspect tool were fixed
Fixed some warnings, including removal of extra semicolons in include/boost/pfr/detail/fields_count.hpp
Added a compile time assert for inherited types (thanks to Denis Mikhailov aka @denzor200)
Reflection of aggregates with non movable fields is now possible if guaranteed copy elision is on
Fixed spelling issues
Started using GithubActions CI for additional testing
PropertyTree:
This is a maintenance release.
Extend compiler coverage in CI.
Fix Boost compatibility for CMakeLists.txt.
System:
The conversion operator from error_category to std::error_category has been improved and no longer requires <map> or <mutex>.
The comparison operators of error_category are now inline friends instead of member functions (a side effect of the previous change.)
error_condition now defers calling generic_category() to avoid instantiating the object until it's actually needed.
error_condition::failed and error_condition::message have been undeprecated, and operator bool() now once again returns failed().
The system category now doesn't call generic_category(), to avoid instantiating the object.
The return value of default_error_condition changes in some cases into an error_condition from the generic category, instead of from the system category. This happens on POSIX when the input error_code is from the system category and does not correspond to any errc_t value.
The interoperability of error_code and std::error_code has been improved substantially. It is now possible to construct boost::system::error_code from std::error_code, and it's possible to pass boost::system::error_code to functions taking std::error_code&.
A stream insertion operator for error_condition has been added.
Uuid:
Added to_chars for writing uuid strings without allocating
boost: bump GCC requirement
boost: updated to 1.76.0
Updated Libraries
Asio:
Added ip::scope_id_type type alias.
Added ip::port_type type alias.
Added std::hash specialisations for IP addresses.
Added std::hash specialisations for ip::basic_endpoint<>.
Refactored SFINAE usage to improve compile times.
Added friendship support to customisation points, and made most customisations private.
Changed any_io_executor to a "strong typedef"-style class.
Fixed experimental::as_single to work with handler hook deprecation.
Ensured pthread condition variable attributes are cleaned up on all platforms.
Clarified thread safety notes on sockets and descriptors.
Ensured errno is not overwritten if socket() fails on macOS/FreeBSD.
Fixed work tracking for io_context and thread_pool executors when move-assigned.
Ensured internal call_stack objects are accessed only from implementation files.
Fixed I/O object move-assignment to ensure the executor is left in a valid state.
Fixed detection of compiler support for defaulted template argument on functions with MSVC.
Prevented the blocking.always property from being used with strand<>, as it did not produce the correct semantics.
Removed deprecated file asio/impl/src.cpp.
Atomic:
Fixed compilation with MSVC for ARM.
Beast:
This update brings minor bug fixes and revamped CI reporting.
We'd love to know how you or your company use Beast, consider adding an entry to the Companies and Individuals Using Beast list.
See the full Release Notes for a complete list of changes.
Bind:
Add support for using the standard C++11 placeholders with boost::bind.
Update boost::apply to use variadic templates and perfect forwarding.
Container:
Added [[no-discard]] attribute in all containers to catch bugs related to unused return values.
Replaced default standard exception classes with Boost.Container own classes, reducing considerably the included files overhead. Example: in MSVC 19 boost/container/vector.hpp preprocessed file size reduces from 1,5MB to 930KB. If you still want to use standard exception classes, you can define BOOST_CONTAINER_USE_STD_EXCEPTIONS before using any Boost.Container class.
Fixed bugs/issues:
GitHub 102: "flat_map::insert ambiguous with initializer list & pairs that need to convert".
GitHub 139: "flat_map merge and iterators".
GitHub 141: "small_vector does not propagate no throw properties of move operation of contained type".
GitHub 164: "Compile error when using pmr::map with a std::pair; works when using a std::tuple".
GitHub 171: "deque::clear() uses undefined behaviour".
Core:
Add implicit conversion between compatible reference wrappers.
Add boost/core/cmath.hpp, a portable implementation of the floating point classification functions from <cmath>.
Add boost/core/bit.hpp, a portable implementation of the C++20 standard header <bit>.
Fix BOOST_TEST_EQ, BOOST_TEST_NE for character types under C++20.
Revise allocator access utilities (now support VS2013, and no workarounds use allocator_traits.)
DLL:
BREAKING CHANGE: boost::dll::import was renamed to boost::dll::import_symbol to avoid collision with C++20 import keyword.
Updated docs, including FAQ section.
Filesystem:
Updated compatibility with WASI platform.
Fixed an exception being thrown by path::remove_filename if the path is "////".
Fixed create_directories disregarding errors from file status query operations issued internally. This could result in incorrect error codes returned by create_directories.
GIL:
BREAKING: In next release, we are going to drop support for GCC 5. We will also change the required minimum C++ version from C++11 to C++14.
Intrusive:
Reduced compile-time dependencies:
linear_slist_algorithms use a simple node_ptr instead of std::pair on return.
list/slist use operator </operator == instead of std::equal_to/std::less.
Fixed GitHub 54: set.rbegin() looks like O(log(N))
Interprocess:
Added wchar_t API support for named resources in operating systems that offer native wide character API (e.g. Windows). The following classes were updated with wchar_t name support:
file_mapping
managed_mapped_file
managed_shared_memory
managed_windows_shared_memory
shared_memory_object
windows_shared_memory_object
file_lock
named_condition
named_condition_any
named_mutex
named_recursive_mutex
named_semaphore
named_sharable_mutex
named_upgradable_mutex
message_queue
Added BOOST_INTERPROCESS_FORCE_NATIVE_EMULATION macro option to disable the use of generic emulation code for process shared synchronization primitives instead of native POSIX or Winapi functions.
Fixed bugs:
GitHub 76 ("Cygwin compilation errors").
GitHub 83 ("Add BOOST_INTERPROCESS_FORCE_NATIVE_EMULATION option").
GitHub 92 ("bufferstream: Correct MSVC compilation warning").
GitHub 106 ("Use fallocate on truncate_file").
GitHub 120 ("segment_manager customization").
GitHub 122 ("Mark constructors/assignment/swap noexcept where possible").
GitHub 126 ("_ReadWriteBarrier is deprecated warning when compiling with clang-cl.exe").
JSON:
Security Report from Bishop Fox.
Refactored value_from implementation; user customizations are now always preferred over library-provided overloads.
Fix imprecise parsing for some floating point numbers.
Fix link errors in standalone mode, when used alongside Boost.
Fix Boost.Build builds on GCC 4.8.
LexicalCast:
Dropped dependency on Boost.Math
Fixes for the CI and coverage
Log:
Bug fixes:
Corrected a formal race condition in the thread-safe log record queue implementation used in the unbounded_fifo_queue policy of the asynchronous_sink frontend. The race could be detected by TSAN, but it was not a real problem on most current CPU architectures and compilers.
When copying a logger with a channel attribute (e.g. channel_logger), the channel attribute is now deep-copied from the original logger. This means that modifying the channel in the new logger will no longer affect the original logger.
Replaced the use of std::allocator<void> in template parameters with a new tag type boost::log::use_std_allocator to silence libc++ warnings about the former being deprecated in C++17 and later. The tag indicates that the instantiated template should be using a specialization of std::allocator internally to allocate dynamic memory, so the change has no functional effect.
Boost.Log no longer defines __MSVCRT_VERSION__ macro on MinGW and MinGW-w64. Defining this macro caused incompatibility with UCRT, which is available as an option in recent MinGW-w64.
See changelog for more details.
Math:
Breaking Change: C++03 support is now removed, a C++11 or later conformant compiler is now required to use this library.
Added Z-test.
Added execution policy support to univariate and bivariate statistics: enables parallel execution (requires C++17 and <execution>).
Big update/improvement on CI testing.
Bivariate statistics now have integer support.
T-Test now has integer support.
Linear regression now has integer support.
Correct PDF of the beta distribution at the endpoints.
Correct use of Stirling's approximation in certain multiprecision cases.
Eliminate -Wimplicit-int-float-conversion on clang.
Fix some constexpr issues in quaternion/octonion.
Minor performance fix to tanh_sinh integration.
Update hypergeometric functions internal scaling to allow for 64-bit (long long) exponents with multiprecision types.
Move:
Git Issue 35: "New nothrow move traits are incomplete".
Multiprecision:
BREAKING CHANGE: Massive refactoring and code simplification makes C++11 an absolute requirement.
Use BOOST_TRY/CATCH in headers so code can be used in exception-free environments.
Correct corner case in pow.
Correct exception type thrown to match docs in lsb/msb.
Allow moves and operators between related but different types (ie types with the same allocator).
Nowide:
Fix discarding of characters for text file streams when seek or sync functions are used and newlines were converted (e.g. on Windows)
Fix potential use-after-free bug when reusing (via open) a file stream that has been closed
Fix potential invalid memory access when using a file stream that has been moved or swapped to where the source had a put-back character or was set to unbuffered mode
Fix compatibility with ucrt runtime by not defining __MSVCRT_VERSION__
Known issues: Read performance for text files is degraded. Binary files and writing is unaffected.
Optional:
Fixed MSVC warning C4702.
Outcome:
Announcements:
BREAKING CHANGE: After a year and three major Boost releases announcing this upcoming change, this is the FIRST RELEASE of the v2.2 branch. This branch has a number of major breaking changes to the Outcome v2.1 which shipped in Boost 1.75 and earlier, see the documentation for details.
Enhancements:
VS2019.8 changed how to enable Coroutines, which caused Outcome to not compile on that compiler.
If on C++ 20, we now use C++ 20 [[likely]] instead of compiler-specific markup to indicate when TRY has likely success or failure.
BREAKING CHANGE: Previously the value of spare_storage(const basic_result|basic_outcome *) noexcept was not propagated over BOOST_OUTCOME_TRY, which causes things like stack backtraces captured at the point of construction of an errored result to get dropped at every TRY point. This has been fixed by adding an optional spare_storage to success_type<T> and failure_type<T>, as well as to auto success(T &&, ...) and auto failure(T &&, ...).
Bug fixes:
Boost.Outcome should now compile with BOOST_NO_EXCEPTIONS defined. Thanks to Emil, maintainer of Boost.Exception, making a change for me, Boost.Outcome should now compile with C++ exceptions globally disabled. You won't be able to use boost::exception_ptr as it can't be included if C++ exceptions are globally disabled.
BREAKING CHANGE 244 It came as a shock to learn that BOOST_OUTCOME_TRY had been broken since the inception of this library for certain corner case code, which required a breaking change in how TRY works. See the changelog in the documentation for more detail.
Parameter:
Added a workaround for MSVC 2015 code miscompilation when an rvalue was used as a default value of a named parameter of a function.
PFR:
Fixed reflection of types with missing const in SFINAE expressions in template constructor. Now reflection of aggregates with std::optional<std::chrono::duration<???>> fields works on any Standard Library implementation, even if LWG3050 is not fixed.
Comparison functions are now constexpr
Fixed numerous typos in docs
PolyCollection:
Worked around GCC bug affecting GCC versions 9.3-10.2.
Predef:
Version 1.13
Add ARCH_PPC_64 predef.
Fix ARCH_WORD_BITS* redefinition warnings/errors.
Add ARCH_E2K, Elbrus 2000, architecture from Konstantin Ivlev.
Fix not handling recent C++ version that go above 10.x version.
Version 1.12
Switch to using the endian.h header on OpenBSD. (Brad Smith)
Fix not handling recent versions of stdcxx that go above version 9.
Fix including sub-BSD OS headers directly causing redef warnings.
Add CI testing of direct inclusion of all headers.
Add CI testing on FreeBSD for clang and gcc.
Add WORD_BITS set of predefs to detect the architecture word size. Initial implementation inspired by submission from Mikhail Komarov.
Add CI testing for Cygwin 32 and 64.
PropertyTree:
Property Tree has a new maintainer.
Fix usage of deprecated Boost.Bind features.
Link to Wikipedia fixed.
Use BOOST_OVERRIDE to fix GCC warnings.
Add extensive CI testing.
Regex:
Regex is now header only except in C++03 mode.
Support for C++03 is now deprecated.
The library can now be used "standalone" without the rest of Boost being present.
Stacktrace:
Better support for pre-C++11 builds on clang.
Bigger warning for do not use boost::stacktrace::stacktrace in signal handlers.
TypeTraits:
Fix for Visual Studio managed code projects.
Variant2:
Improved generated code for the double buffered case.
Updated Tools
Build:
Includes release of B2 version 4.4.1.
boost: Update to 1.75.0
Changelog:
1.75.0
New Libraries
* JSON: JSON parsing, serialization, and DOM in C++11, from Vinnie Falco and
Krystian Stasiowski.
+ Fast compilation requiring only C++11
+ Easy and safe modern API with allocator support
+ Compile without Boost, define BOOST_JSON_STANDALONE
+ Optional header-only, without linking to a library
* LEAF: A lightweight error-handling library for C++11, from Emil Dotchevski.
+ Small single-header format, no dependencies.
+ Designed for maximum efficiency ("happy" path and "sad" path).
+ No dynamic memory allocations, even with heavy payloads.
+ O(1) transport of arbitrary error types (independent of call stack
depth).
+ Can be used with or without exception handling.
* PFR: Basic reflection without macro or boilerplate code for user defined
types, from Antony Polukhin.
Updated Libraries
* Asio:
+ Enabled support for UNIX domain sockets on Windows.
+ Added executor-converting construction and assignment to ip::
basic_resolver.
+ Added compatibility between polymorphic executors and the (deprecated)
handler invocation hook.
+ Added the experimental::as_single completion token adapter.
+ Added support for MSG_NOSIGNAL on more platforms by using
_POSIX_VERSION to detect whether it is supported.
+ Added the ability to compile using libpthread on Windows.
+ Added workarounds for the Intel C++ compiler.
+ Added more support for detecting and optimising for handlers that have
no custom executor.
+ Reduced lock contention for timer cancellation on Windows.
+ Reinstated a previously removed null-pointer check, as it had a
measurable impact on performance.
+ Fixed the executor concept to test for a const-qualified execute().
+ Fixed any_executor support for builds without RTTI support.
+ Fixed the thread_pool unit test to work without RTTI support.
+ Fixed C++20 coroutines compatibility with clang on Windows.
+ Fixed some compatibility issues with Windows Runtime.
+ Fixed shadow name warnings caused by addition of asio::query.
+ Fixed a "logical ‘or’ of equal expressions" warning on linux.
+ Fixed a benign switch fallthrough warning.
+ Added missing push/pop_options.hpp includes.
+ Suppressed zero-as-null-pointer-constant warnings.
+ Fixed a comma-operator warning.
+ Updated the documentation to clarify when the select reactor is used on
Windows.
+ Fixed potential ambiguity caused by any_executor comparisons and
conversion.
+ Added detection of non-experimental C++20 coroutines on MSVC 19.8.
+ Fixed compatibility with uClibc.
+ Fixed strand<> adaptation of Networking TS executors when targeting
older C++ versions or less conformant compilers.
+ Consult the Revision History for further details.
* Atomic:
+ Implemented SSE2 and SSE4.1 versions of address lookup algorithm, which
is used in the internal lock pool implementation. This may improve
performance of waiting and notifying operations in heavily contended
cases.
+ Fixed a possible compilation error on AArch64 targets caused by
incorrect instructions generated for bitwise (logical) operations with
immediate constants. (#41)
* Beast:
+ This update brings bug fixes and support for the
BOOST_ASIO_ENBALE_HANDLER_TRACKING compile flag from Boost.Asio:
+ We'd love to know how you or your company use Beast, consider adding an
entry to the Companies and Individuals Using Beast list.
+ See the full Release Notes for a complete list of changes.
* Container:
+ New devector container.
+ Fixed bugs/issues:
o #152 Tree-based containers have troubles with move-only types.
o #156 Compile error with vector.
o PR#157 Add missing include.
o #159: pmr::monotonic_buffer_resource crashes on large single
allocations.
o #160: Usage of uses_allocator needs a remove_cvref_t.
o #162: small_vector on MSVC x86 call-by-value crash.
o #161: polymorphic_allocator(memory_resource*) non-standard
extension causes headache.
o PR#163: container_rebind for small_vector with options.
o #165: Link error with shared library and memory_resource inline
members.
o PR#166: Fix encoding error in copyright headers.
o PR#167: error: the address of 'msg' will always evaluate as 'true'
warning with GCC 4.4.
o #169: flood of warnings building dlmalloc_ext_2_8_6.c on clang11.
* Endian:
+ endian_arithmetic no longer inherits from endian_buffer
+ When BOOST_ENDIAN_NO_CTORS is defined, the unaligned endian_buffer and
endian_arithmetic are C++03 PODs, to enable use of __attribute__((
packed))
* Filesystem:
+ New: Added creation_time operation, which allows to obtain file
creation time. (Inspired by PR#134)
+ The returned value of last_write_time(p, ec) operation in case of
failure has been changed to a minimal value representable by std::
time_t instead of -1.
+ The returned value of hard_link_count(p, ec) operation in case of
failure has been changed to static_cast<uintmax_t>(-1) instead of 0.
+ On POSIX systems, file_size will now indicate error code errc::
function_not_supported if the path resolves to a non-regular file.
Previously, errc::operation_not_permitted was reported.
+ On Linux, many operations now use statx system call internally, when
possible, which allows to reduce the amount of information queried from
the filesystem and potentially improve performance. The statx system
call was introduced in Linux kernel 4.11.
+ Removed const-qualification from return types of some path methods.
This could prevent move construction and move assignment at the call
site in some cases. (#160)
+ On OpenBSD 4.4 and newer, use statvfs system call to obtain filesystem
space information. (Inspired by PR#162)
+ On Windows, space now returns with an error if the provided path does
not idendify an existing file. (#167)
* GIL:
+ BREAKING: In next release, we are going to drop support for GCC 5. We
may also change the required minimum C++ version from C++11 to C++14.
* Histogram:
+ This update brings
o Bug-fixes for corner-cases
o Small documentation improvements
o Fixes for new warnings from latest compilers and when compiling
against the C++20 standard
+ See the full Release Notes for a complete list of changes.
* Interprocess:
+ Fixed bugs:
o #127: static assertion failure with boost interprocess 1.74 and
basic_managed_shared_memory.
* Intrusive:
+ Fixed bugs:
o PR#48: MSVC "assignment within conditional" warning fix.
o PR#49: Fix empty control statement warnings.
o #52: Invalid casting in BOOST_INTRUSIVE_BSR_INTRINSIC.
* Log:
+ Bug fixes:
o Corrected the file counter that would be used in text_file_backend
when generating the target file name (based on the pattern set by
set_target_file_name_pattern method) when the log file is rotated.
(#125)
o Replaced a volatile version counter in basic_sink_frontend with an
atomic. (#128)
o In the asynchronous_sink frontend, resolved a possible conflict
between flush and run methods, if run is called from a user's
thread instead of the internal dedicated thread spawned by the
frontend. (#131)
+ See changelog for more details.
* Move:
+ Fixed bugs:
o #30: (void) C-cast is a non-portable way of suppressing compiler
warnings.
* Mp11:
+ Added mp_pairwise_fold (suggested by Barry Revzin)
+ Removed mp_invoke (use mp_invoke_q)
* Optional:
+ boost::none is constexpr-declared.
+ Fixed issue #78.
* Outcome:
+ Announcements:
o After a year and three major Boost releases announcing this
upcoming change, this is the FINAL RELEASE of the v2.1 branch. From
Boost 1.76 onwards, the v2.2 branch becomes the default. This
branch has a number of major breaking changes to Outcome v2.1, see
the documentation for details.
+ Enhancements:
o The ADL discovered event hooks have been replaced with
policy-specified event hooks instead. This is due to brittleness
(where hooks would quietly self-disable if somebody changed
something), compiler bugs (a difference in compiler settings causes
the wrong hooks, or some but not all hooks, to get discovered), and
end user difficulty in using them at all. The policy-specified
event hooks can be told to default to ADL discovered hooks for
backwards compatibility: set OUTCOME_ENABLE_LEGACY_SUPPORT_FOR to
less than 220 to enable emulation.
o Improve configuring OUTCOME_GCC6_CONCEPT_BOOL. Older GCCs had
boolean based concepts syntax, whereas newer GCCs are standards
conforming. However the precise logic of when to use legacy and
conforming syntax was not well understood, which caused Outcome to
fail to compile depending on what options you pass to GCC. The new
logic always uses the legacy syntax if on GCC 8 or older, otherwise
we use conforming syntax if and only if GCC is in C++ 20 mode or
later. This hopefully will resolve the corner case build failures
on GCC.
+ Bug fixes:
o Boost.Outcome should now compile with BOOST_NO_EXCEPTIONS defined.
Thanks to Emil, maintainer of Boost.Exception, making a change for
me, Boost.Outcome should now compile with C++ exceptions globally
disabled. You won't be able to use boost::exception_ptr as it can't
be included if C++ exceptions are globally disabled.
o #236 In the Coroutine support the final_suspend() was not noexcept,
despite being required to be so in the C++ 20 standard. This has
been fixed, but only if your compiler implements noop_coroutine.
Additionally, if noop_coroutine is available, we use the much more
efficient coroutine handle returning variant of await_suspend()
which should significantly improve codegen and context switching
performance.
* Polygon:
+ C++20 fixes for event_comparison_type, vertex_equality_predicate_type,
and voronoi_predicates. (Glen Fernandes)
* Preprocessor:
+ When variadic data is empty in C++20 mode with __VA_OPT__ support the
variadic size has been corrected to be 0. This also means that in this
C++20 mode it is now valid to convert to and from empty arrays and
lists and variadic data. The end-user can read the "C++20 Support For
Variadic Macros" part of the "variadic macros" topic for more
information about empty variadic data in the library.
+ The macro BOOST_PP_IS_STANDARD() has been added for identifying if the
currently used preprocessor is a C++ standard conforming preprocessor.
A number of preprocessors which generally work correctly with the
library but need various internal workarounds, including the currently
default VC++ preprocessor, are not considered C++ standard conforming
preprocessors. However most preprocessors, including among others gcc,
clang, and the new but currently non-default VC++ preprocessor in
VS2019, are C++ standard conforming preprocessors.
+ For C++ standard conforming preprocessors a number of the limits
defined in the config/limits.hpp can now be changed to higher amounts
for a TU. The end-user should read the "limitations" topic to
understand how and which limits can be changed.
+ For C++ standard conforming preprocessors, in order to allow the
maximum number of FOR and WHILE iterations, the beginning 'r' and 'd'
iteration numbers in the user-defined macros start at 1 and not 2, as
it did in previous releases. This could be a breaking change if these
iteration numbers are used in the user-defined macros ( they probably
would not be ), but the change was necessary to fix some arcane bugs
when dealing with numerical/logical operations with maximum numbers as
well to allow the user-defined macros to be called the correct possible
maximum number of times. For non-C++ conforming preprocessors, this
change was not made because those non-conforming C++ preprocessors
generally have limitations which disallow the maximum number of looping
constructs to be run, and it was felt not to introduce a possible
breaking change to those more fragile preprocessors would be better. It
was also felt that besides fixing some arcane preprocessor bugs and
providing the possible maximum number of user-defined macro
invocations, this change could be made because it has never been
documented what the starting 'r' and 'd' iteration numbers actually are
but only that these numbers are incremented for each iteration.
+ The library has been upgraded to assume variadic macro support for any
compiler working with the library. Ostensibly this means that the
library is now a C++11 on up library, yet most of the major compilers,
including gcc, clang, and VC++, also support variadic macros in C++98/
C++03 mode as long as strict compliance to C++98/C++03 is not turned on
when using one of those compilers.
* Rational:
+ Fix Rational operators to not break under new C++20 operator==
rewriting rules. (Glen Fernandes)
* Signals2:
+ Correct C++ allocator model support to fix compilation in C++20
standards mode. (Glen Fernandes)
* System:
+ The platform-specific headers windows_error.hpp, linux_error.hpp, and
cygwin_error.hpp emit deprecation messages and are slated for removal.
+ The old names for generic_category() and system_category() emit
deprecation messages and are slated for removal.
+ error_condition::failed is deprecated and is slated for removal.
operator bool() for error_condition has been reverted to its old
meaning of value() != 0. This is done for compatibility with std::
error_condition as the next release is expected to improve
interoperability with <system_error> even further. Note that this does
not affect error_code::failed, which is still alive and well.
+ The overload of error_condition::message that takes a buffer is
deprecated and is slated for removal, for the same reasons. Note that
this does not affect error_code::message.
* uBLAS:
+ Correct C++ allocator model support to fix compilation in C++20
standards mode. (Glen Fernandes and Conrad Poelman)
* VMD:
+ The VMD number parsing has been upgraded to support the ability for the
end-user to change the number limits in the Preprocessor library.
+ The macro BOOST_VMD_IS_GENERAL_IDENTIFIER has been added to support the
parsing of input that represents a preprocessor token which matches the
VMD identifier syntax, without having to register the identifier as a
specific identifier.
* Wave:
+ Added new C++20 tokens, including the spaceship operator <=>
+ Fixed bugs:
o #94: fix incorrect behavior of __LINE__ and __FILE__ under
rescanning
1.74.0
New Libraries
* STLInterfaces: A library of CRTP bases to ease the writing of STL views,
iterators, and sequence containers, from Zach Laine.
Updated Libraries
* Asio:
+ Added an implementation of the proposed standard executors (P0443r13,
P1348r0, and P1393r0).
+ Added support for the proposed standard executors to Asio's I/O
facilities.
o The supplied executors now meet the requirements for the proposed
standard executors. These classes also continue to meet the
existing requirements for the Networking TS model of executors.
o All I/O objects, asynchronous operations, and utilities will
interoperate with both new proposed standard executors, and with
existing Networking TS executors.
o The any_io_executor type alias has been introduced as the default
runtime-polymorphic executor for all I/O objects. This defaults to
the execution::any_executor<> template. If required for backward
compatibility, BOOST_ASIO_USE_TS_EXECUTOR_AS_DEFAULT can be defined
to use the old asio::executor polymorphic wrapper instead.
o Support for the existing Networking TS model of executors can be
disabled by defining BOOST_ASIO_NO_TS_EXECUTORS.
+ Added converting move construction and assignment to
basic_waitable_timer.
+ Enabled C++20 coroutine support when using gcc 10.
+ Added overloads of co_spawn that launch an awaitable.
+ Added a new constructor overload to use_awaitable_t's default executor
adapter, to enable conversion between executor types.
+ Added support for using detached_t as a default completion token, by
adding members as_default_on() and as_default_on_t<>.
+ Added a move constructor to ssl::stream<>.
+ Changed ssl::stream<> write operations to linearise gather-write buffer
sequences.
+ Added compile-time detection of the deprecated asio_handler_invoke,
asio_handler_allocate, and asio_handler_deallocate hooks, when
BOOST_ASIO_NO_DEPRECATED is defined.
+ Implemented a number of performance optimisations.
+ Added source location support to handler tracking.
+ Implemented various improvements to the handlerviz.pl tool.
+ Added the handlerlive.pl tool, which processes handler tracking output
to produce a list of "live" handlers.
+ Added the handlertree.pl tool, which filters handler tracking output to
include only those events in the tree that produced the nominated
handlers.
+ Added changes for clang-based Embarcadero C++ compilers.
+ Fixed a deadlock that can occur when multiple threads concurrently
initialise the Windows I/O completion port backend.
+ Fixed async_compose to work with copyable handlers when passed by
lvalue.
+ Fixed completion signature deduction in co_spawn.
+ Removed a spurious Executor base class from the executor_binder
implementation.
+ Various fixes and improvements in the documentation and examples.
+ Consult the Revision History for further details.
* Atomic:
+ Added missing const qualifiers to some operations in atomic_ref.
+ Added support for yield instruction on ARMv8-A. The instruction is used
internally in spin loops to reduce CPU power consumption.
+ Added support for C++20 waiting and notifying operations. The
implementation includes generic backend that involves the internal lock
pool, as well as specialized backends for Windows, Linux, FreeBSD,
DragonFly BSD and NetBSD. Atomic types provide a new method
has_native_wait_notify, a static boolean constant
always_has_native_wait_notify and a set of capability macros that allow
to detect if the implementation supports native waiting and notifying
operations for a given type.
+ Changed internal representation of atomic_flag to use 32-bit storage.
This allows for more efficient waiting and notifying operations on
atomic_flag on some platforms.
+ Added support for build-time configuration of the internal lock pool
size. The user can define the BOOST_ATOMIC_LOCK_POOL_SIZE_LOG2 macro to
specify binary logarithm of the size of the lock pool. The default
value is 8, meaning that the size of the lock pool is 256, up from 64
used in the previous release.
+ Added support for a new set of atomic types dedicated for inter-process
communication: ipc_atomic_flag, ipc_atomic and ipc_atomic_ref. Users
are recommended to port their code using non-IPC types for
inter-process communication to the new types. The new types provide the
same set of operations as their non-IPC counterparts, with the
following differences:
o Most operations have an added precondition that is_lock_free
returns true for the given atomic object. The library will issue a
compile time error if this precondition is known to be not
satisfied at compile time.
o All provided operations are address-free, meaning that the atomic
object (in case of ipc_atomic_ref - the referenced object) may be
located in process-shared memory or mapped into the same process at
multiple different addresses.
o The new has_native_wait_notify operation and
always_has_native_wait_notify constant indicate support for native
inter-process waiting and notifying operations. When that support
is not present, the operations are implemented with a busy loop,
which is less efficient, but still is address-free. A separate set
of capability macros is also provided to indicate this support.
+ Added new atomic_unsigned_lock_free and atomic_signed_lock_free types
introduced in C++20. The types indicate the atomic object type for an
unsigned or signed integer, respectively, that is lock-free and
preferably has native support for waiting and notifying operations.
+ Added new gcc assembler backends for ARMv8-A (for both AArch32 and
AArch64). The new backends are used to implement operations not
supported by compiler intrinsics (including 128-bit operations on
AArch64) and can also be used when compiler intrinsics are not
available. Both little and big endian targets are supported. AArch64
backend supports extensions defined in ARMv8.1 and ARMv8.3.
+ Added support for big endian targets in the legacy ARM backend based on
gcc assembler blocks (this backend is used on ARMv7 and older targets).
Previously, the backend assumed little endian memory layout, which is
significant for 64-bit operations.
+ Improved performance of seq_cst stores and thread fences on x86 by
using lock-prefixed instructions instead of mfence. This means that the
operations no longer affect non-temporal stores, which was also not
guaranteed before. Use specialized instructions and intrinsics to order
non-temporal memory accesses.
+ Fixed capability macros for 80-bit long double on x86 targets not
indicating lock-free operations even if 128-bit atomic operations were
available.
+ Fixed compilation of gcc asm blocks on Alpha targets.
+ In the gcc __sync* intrinsics backend, fixed that store and load
operations of large objects (larger than a pointer size) could be
non-atomic. The implementation currently assumes that small objects can
be stored with a single instruction atomically on all modern
architectures.
* Beast:
+ This update brings bug fixes and support for the following changes
changes in Boost.Asio:
+ Beast supports BOOST_ASIO_NO_DEPRECATED. Define this to help identify
areas of your Beast and Asio code which use deprecated Asio interfaces.
+ Beast also supports BOOST_ASIO_NO_TS_EXECUTORS. Define this to identify
uses of executors from the now potentially outdated Networking TS
+ Asio will use the Standard Executors model by default. You can prevent
this behaviour by defining BOOST_ASIO_USE_TS_EXECUTOR_AS_DEFAULT in
which the Networking TS model will be used by default. Setting this
flag does not prevent a program from using executors from the Standard
Executors model explicitly.
+ We'd love to know how you or your company use Beast, consider adding an
entry to the Companies and Individuals Using Beast list.
+ See the full Release Notes for a complete list of changes.
* Bimap:
+ Correct allocator usage (fixes C++20 compilation). (Glen Fernandes)
* Config:
+ Implement BOOST_NO_CXX11_OVERRIDE and BOOST_OVERRIDE. (Glen Fernandes)
* Core:
+ Implemented the allocator access utilities which provide a replacement
for allocator_traits with individual traits and functions for each
facility. They support the C++11 allocator model when possible and
provide a fallback for C++98 compatibility. These are now used in
Circular_Buffer, Wave, Lockfree, Heap, Smart_Ptr, Dynamic_Bitset,
Format, Bimap and more. (Glen Fernandes)
* DLL:
+ Multiple fixes for the library_info work on empty shared objects.
+ Compilation fixes for C++98 and C++11 modes (#28).
+ Fixes for smart_library manglings (thanks to XiaLiChao82 #37).
* Endian:
+ Enabled scoped enumeration types in endian_reverse.
+ Enabled bool, enum, float, double in endian_reverse_inplace.
+ Added an overload of endian_reverse_inplace for arrays.
* Filesystem:
+ Removed compile-time checks for support for symlinks and hardlink on
Windows. Instead, a runtime check is used. (PR#142)
+ Fixed handling of reparse points in canonical and read_symlink on
Windows. This also affects other algorithms that involve canonical and
read_symlink in their implementation. (PR#100, #85, #99, #123, #125)
+ Fixed that read_symlink on Windows could potentially fail or cause
failures elsewhere with a sharing violation error, if the same symlink
was opened concurrently. (#138)
+ Fixed that is_symlink(directory_entry) would always return false, even
if the directory entry actually referred to a symlink. (PR#148)
+ Added missing status inspection operation overloads for directory_entry
and error_code (e.g. is_directory(directory_entry, error_code&)).
Removed incorrect noexcept specifications for the overloads not taking
the error_code arguments.
+ copy_file implementation has been updated to perform checks on the
source and target files, as required by C++20 ([fs.op.copy.file]/4.1).
In particular, the operation will fail if the source or target file is
not a regular file or the source and target paths identify the same
file.
+ copy_file on POSIX systems will now also copy the source file
permissions to the target file, if the target file is overwritten.
+ New: Added copy_file implementations based on sendfile and
copy_file_range system calls on Linux, which may improve file copying
performance, especially on network filesystems.
+ Deprecated: The copy_option enumeration that is used with the copy_file
operation is deprecated. As a replacement, the new enum copy_options
(note the trailing 's') has been added. The new enum contains values
similar to the copy_options enum from C++20. The old enum values are
mapped onto the new enum. The old enum will be removed in a future
release.
+ New: Added copy_options::skip_existing option, which allows copy_file
operation to succeed without overwriting the target file, if it exists.
+ New: Added copy_options::update_existing option, which allows copy_file
operation to conditionally overwrite the target file, if it exists, if
its last write time is older than that of the replacement file.
+ New: copy_file now returns bool, which indicates whether the file was
copied.
+ New, breaking change: copy operation has been extended and reworked to
implement behavior specified in C++20 [fs.op.copy]. This includes
support for copy_options::recursive, copy_options::copy_symlinks,
copy_options::skip_symlinks, copy_options::directories_only,
copy_options::create_symlinks and copy_options::create_hard_links
options. The operation performs additional checks based on the
specified options. Applying copy to a directory with default
copy_options will now also copy files residing in that directory (but
not nested directories or files in those directories).
+ New: Added create_directory overload taking two paths. The second path
is a path to an existing directory, which is used as a source of
permission attributes to use in the directory to create.
+ Deprecated: copy_directory operation has been deprecated in favor of
the new create_directory overload. Note that the two operations have
reversed order of the path arguments.
+ equivalent on POSIX systems now returns the actual error code from the
OS if one of the paths does not resolve to a file. Previously the
function would return an error code of 1. (#141)
+ equivalent no longer considers file size and last modification time in
order to test whether the two paths refer to the same file. These
checks could result in a false negative if the file was modified during
the equivalent call.
+ New: Added absolute overloads taking error_code argument.
+ Operations that have current_path() as the default value of their
arguments and also have an error_code argument will use the
current_path(error_code& ec) overload to obtain the current path, so
that its failure is reported via the error_code argument instead of an
exception.
+ space now initializes the space_info structure members to -1 values on
error, as required by C++20 ([fs.op.space]/1).
+ space on Windows now accepts paths referring to arbitrary files, not
only directories. This is similar to POSIX systems and corresponds to
the operation description in C++20. (#73)
+ New: Added implementation of temp_directory_path for Windows CE. (PR#25
)
+ New: Improved compatibility with WASI platform. (PR#144)
+ New: Improved support for Embarcadero compilers. (PR#130)
+ New: Added implementations of unique_path operation based on getrandom
(Linux), arc4random_buf (OpenBSD/FreeBSD/CloudABI) and BCrypt (Windows)
system APIs.
+ Deprecated: Auto-linking against system libraries on Windows with
MSVC-compatible compilers is deprecated and will be removed in a future
release. This affects users linking against static library of
Boost.Filesystem. Users are advised to update their project build
systems to either use a shared library of Boost.Filesystem, or
explicitly specify the dependencies of Boost.Filesystem in the linker
command line. Users of shared library of Boost.Filesystem are not
affected.
* Flyweight:
+ Maintenance work.
* Format:
+ Correct allocator usage (fixes C++20 compilation). (Glen Fernandes)
* Geometry:
+ Improvements
o PR#720 Additional R-tree constructors (thanks to Caian Benedicto).
o Various improvements in buffer, set and relational operations.
+ Solved issues
o #709 memcpy called for object with no trivial copy-assignment.
o #721 Compilation error in bgi::detail::rtree::visitors::insert.
o #727 MSVC warning: conditional expression is constant.
+ Bugfixes
o PR#700 Missing cases for default strategies in distance algorithm.
o PR#738 Longitudes out of range in direct geodesic formulas.
* GIL:
+ Added
o Added new constructor initializing any_image from r-value reference
to any image (PR#486).
o Implemented mechanism to reverse kernel_2d (PR#489).
+ Changed
o BREAKING: Replace Boost.Variant with Boost.Variant2 (PR#474) which
completes removal on uses of Boost.MPL (missing from Boost 1.72.0
change added PR#274).
o Use perfect forwarding from apply_operation to visit (PR#491).
+ Removed
o BREAKING: Removed dependency on Boost.Variant
+ Fixed
o Fixed invalid conversion from RGB8 to CMYK32 due to overflow (PR#
470).
o Fixed image constructor from other image (PR#477).
o Fixed error plane_view_t is not a class or namespace name (PR#481).
o Fixed interleaved_view factory using point<std::ptrdiff_t> for
dimension (PR#487).
o Fixed documentation replacing uses MPL with MP11 in tutorial (PR#
494).
o Fixed missing header in numeric/kernel.hpp to make it
self-contained (PR#502).
+ Acknowledgements
o Samuel Debionne, Pranam Lashkari, Mateusz Loskot, Debabrata Mandal
* Heap:
+ Correct destruction of top node in skew_heap. (Glen Fernandes)
+ Correct and simplify allocator use. (Glen Fernandes)
* Integer:
+ Fixed compilation of gcd in C++20 mode with clang 10.
+ Improved support for Embarcadero compilers. (PR#21)
* Iterator:
+ boost/function_output_iterator.hpp header is now deprecated. Users
should replace its inclusion with boost/iterator/
function_output_iterator.hpp. (PR#51)
+ Improved support for Embarcadero compilers. (PR#55)
* LexicalCast:
+ Fixed warnings on missing override (thanks to EugeneZelenko #35, #34).
+ Fixes for the the Embarcadero compilers (thanks to Edward Diener).
* Log:
+ Bug fixes:
o The syslog sink backend now verifies the IP version of the local
and target addresses set by user. The addresses must have the same
IP version as was specified in the ip_version named parameter on
the sink backend construction (by default, IPv4 is assumed). When
an address is obtained as a result of host name resolution, only
addresses with matching IP version are considered. (#119)
+ New Features:
o Move constructors and assignment operators of various components
were marked noexcept.
o Added a new range_manip stream manipulator that can be used for
outputting elements of a range, optionally separated by a
delimiter.
o Added a new tuple_manip stream manipulator that can be used for
outputting elements of a tuple or any other heterogeneous sequence,
optionally separated by a delimiter.
o Added a new optional_manip stream manipulator that can be used for
outputting optionally present values.
+ See changelog for more details.
* Mp11:
+ Improved compilation performance of mp_with_index<N> for large N.
+ Added tuple_transform (contributed by Hans Dembinski.)
* Multi-index Containers:
+ Added node extraction and insertion following the analogous interface
of associative containers as introduced in C++17. This feature has also
been extended to non key-based indices, in contrast to C++ standard
library sequence containers, which do not provide such functionality.
+ Clarified documentation on read/write key extractors (issue #32).
+ Maintenance work.
* Nowide:
+ The library now requires a C++11-compliant compiler and stdlib
+ LFS: Add support for files > 2 GB where the underlying system supports
it
+ Generic UTF conversion functions are now available in the boost::nowide
::utf namespace
+ Add support for stat with UTF-8 paths
* Outcome:
+ Announcements:
o The v2.1 branch is expected to be retired end of 2020, with the
v2.2 branch becoming the default. You can use the future v2.2
branch now using better_optimisation. This branch has a number of
major breaking changes to Outcome v2.1, see the front page for
details.
+ Enhancements:
o BREAKING CHANGE void results and outcomes no longer default
construct types during explicit construction. Previously if you
explicitly constructed a result<T> from a non-errored result<void>,
it default constructed T. This was found to cause unhelpful
surprise, so it has been disabled.
o New macro OUTCOME_ENABLE_LEGACY_SUPPORT_FOR. The macro
OUTCOME_ENABLE_LEGACY_SUPPORT_FOR can be used to enable aliasing of
older naming and features to newer naming and features when using a
newer version of Outcome.
o Concepts now have snake case style naming instead of camel case
style. When Outcome was first implemented, it was thought that C++
20 concepts were going to have camel case style. This was changed
before the C++ 20 release, and Outcome's concepts have been renamed
similarly. This won't break any code in Outcome v2.1, as
compatibility aliases are provided. However code compiled against
Outcome v2.2 will need to be upgraded, unless
OUTCOME_ENABLE_LEGACY_SUPPORT_FOR is set to 210 or lower.
o Concepts now live in OUTCOME_V2_NAMESPACE::concepts namespace.
Previously concepts lived in the convert namespace, now they live
in their own namespace.
o New concepts basic_result<T> and basic_outcome<T> added. End users
were finding an unhelpful gap in between is_basic_result<T> and
value_or_error<T> where they wanted a concept that matched types
which were basic_result, but not exactly one of those. Concepts
filling that gap were added.
o Operation TRY works differently from Outcome v2.2 onwards. This is
a severely code breaking change which change the syntax of how one
uses OUTCOME_TRY(). A regular expression suitable for upgrading
code can be found in the list of changes between Outcome v2.1 and
v2.2.
+ Bug fixes:
o #224 The clang Apple ships in Xcode 11.4 (currently the latest) has
not been patched with the fixes to LLVM clang that fix noexcept(std
::is_constructible<T, void>) failing to compile which I originally
submitted years ago. So give up waiting on Apple to fix their
clang, add a workaround to Outcome.
o Spare storage could not be used from within no-value policy
classes. Due to an obvious brain fart when writing the code at the
time, the spare storage APIs had the wrong prototype which
prevented them working from within policy classes. Sorry.
* PolyCollection:
+ Fixed internal ambiguity problem between boost::type_erasure::any and
boost::any (issue #17).
+ Maintenance work.
* SmartPtr:
+ Added owner_equals to shared_ptr, weak_ptr, local_shared_ptr.
+ Added owner_hash_value to shared_ptr, weak_ptr.
+ Added owner_equal_to, owner_hash.
+ Added std::hash specializations for shared_ptr, local_shared_ptr.
+ Added boost::hash support to, and std::hash, std::equal_to
specializations for, weak_ptr.
* Stacktrace:
+ Fixed a build error when compiled with -fno-exceptions (thanks to
Jeremiah Rodriguez #91).
* System:
+ operator bool() now returns failed() instead of value() != 0.
* Type_Traits:
+ Implemented conjunction, disjunction, negation, is_trivially_copyable,
is_scoped_enum, and is_unscoped_enum. (Glen Fernandes)
* Variant:
+ Fixed warnings on missing override (thanks to EugeneZelenko #78).
+ Fixes for the the Embarcadero compilers (thanks to Edward Diener #79).
+ Updated header locations to avoid warnings about using deprecated
headers (thanks to Andrey Semashev #80)
* Variant2:
+ Added support for derived types in visit.
+ Improved compilation performance for many (hundreds of) alternatives.
+ Added support for visit<R>.
* Wave:
+ Implement C++20 features for variadics, including __VA_OPT__ (PR#75)
+ Implement __has_include (PR#102)
+ Introduce new sample: check_macro_naming, useful with Boost itself (PR#
97)
+ Fix compilation issue caused by std::allocator member removal in C++20
(PR#72)
+ Repair Xpressive lexer and token_statistics sample (PR#79)
+ Repair lexertl lexer (PR#78)
+ Ensure hooks are run on predefined macros as well (PR#87)
+ Various minor bug fixes
+ C++98/03 support is now deprecated and will be removed in 1.77
* YAP:
+ Fixed compilation errors for placeholders; they now work in the general
case, and in particular work with yap::print().
+ constexpr all the YAP.
+ Fix printing of correct value category in yap::print().
+ Doc clarification.
Updated Tools
* Boostbook:
+ Change encoding of generated documentation from US-ASCII to UTF-8.
(Glen Fernandes)
boost: use more portable invocation of find(1)
The find -print0 and xargs -0 options are not supported by all
implementations. Instead, use the POSIX equivalent syntax
`find -exec ... {} +`, which is already in use by several of the
boost packages (boost-build, boost-docs, and boost-headers).
boost: updated to 1.73.0 1.73.0: Known Issues ------------ These are patches from library authors which were found too late to be fixed in the release. Be careful as they have not been through the normal testing process. New Libraries ------------- Nowide: Standard library functions with UTF-8 API on Windows, from Artyom Beilis. StaticString: A dynamically resizable string of characters with compile-time fixed capacity and contiguous embedded storage, from Vinnie Falco and Krystian Stasiowski Updated Libraries ----------------- Align: * Update aligned_alloc to support older mingw32. Any: * Speedup compilation by not including <algorithm>. * Maintenance work, including CI hardening. Asio: * Fixed compatibility with C++20 concept syntax. * Marked the POSIX descriptor classes' move constructors as noexcept. * Added the ssl::host_name_verification class, which is a drop-in replacement for ssl::rfc2818_verification. The ssl::rfc2818_verification class has been marked as deprecated. As a consequence of this change, SSL support now depends on functions that were introduced in OpenSSL 1.0.2. * Added an ssl::context constructor to take ownership of a native handle. * Changed C++ language version detection with gcc to use __cplusplus macro. * Fixed a work counting issue in the asynchronous resolve operation for endpoints. * Fixed the strand<> converting constructors and assignment operators. * Ensured that resolvers are restarted correctly after a fork. * Fixed compatibility with the current NetBSD release. * Removed spurious handler requirement checks in some async_read overloads. * Changed the ssl::context class to propagate non-EOF errors from the add_certificate_authority function. * Fixed a Windows-specific thread_pool destructor hang that occurred when the pool had an associated I/O object. * Changed the select reactor to recreate the "self pipe trick" sockets on error. This addresses an issue on some versions of Windows, where these sockets are discconected after a system sleep. * Fixed a compile error in the buffered streams due to the lack of reference collapsing in C++98. * Changed the priority_scheduler example to demonstrate calls to shutdown() and destroy(). * Removed some unnecessary null pointer checks. * Changed Windows platform detection to recognise TV titles as Windows apps. * Added some emscripten compatibility patches. * Fixed a compile error in the use_awaitable_t::as_default_on function. * Changed all uses of the boost.bind placeholders to use the boost::placeholders namespace. * Fixed a potential compile error in the async_compose implementation due to incorrect overload selection. * Suppressed some non-virtual destructor warnings. * Various documentation fixes and improvements. Assert: * Added source_location. Atomic: * Implemented C++20 atomic_ref. See docs and especially the caveats section. * Implemented atomic_flag::test operation, which was introduced in C++20. * atomic<T> should now take into account alignment requirements of T, which makes a difference if those requirements are higher than that of the internal storage of atomic. * Added static asserts enforcing the requirements on the value type T used with atomic and atomic_ref. This should prohibit invalid types from being used as atomics. * Improved internal lock pool implementation. The pool is larger, and lock selection accounts for atomic object alignment, which should reduce the potential of thread contention. * Fixed incorrect x86 code generated for bit_test_and_* operations on 8 and 16-bit arguments. Other architectures are not affected. * Fixed a possible unaligned memory access in compare_exchange_* operations, if alignment requirements of value_type are less than that of the internal storage of atomic. * boost/atomic/atomic.hpp no longer includes boost/atomic/atomic_flag.hpp and boost/atomic/fences.hpp and only defines the boost::atomic class template and related typedefs. Include the other headers explicitly or use boost/atomic.hpp to include all parts of Boost.Atomic. * The atomic<T>::storage() accessor and associated atomic<T>::storage_type type are deprecated. Instead, users are advised to use atomic<T>::value() and atomic<T>::value_type, respectively. Users can define BOOST_ATOMIC_SILENCE_STORAGE_DEPRECATION to disable deprecation warnings for the time of transition. The deprecated pieces will be removed in a future release. * Removed support for BOOST_ATOMIC_DETAIL_HIGHLIGHT_OP_AND_TEST. This macro was used as a helper for transition to the updated returned values of *_and_test operations in Boost.Atomic 1.67, which was released 2 years before 1.73. Beast: * This is a maintenance update. * Nested mutable_data_type in Beast dynamic buffers is deprecated. * We'd love to know how you or your company use Beast, consider adding an entry to the Companies and Individuals Using Beast list. * See the full Release Notes for a complete list of changes. Context: * IBM Z: Fix fcontext routines * mips64/n64: .align 3 * Use OSPLAT MIPS32/MIPS64 to set different ABI * Fix non-PIC in RISC-V assembly Conversion: * Added boost::polymorphic_downcast for references (thanks to Julien Delacroix for the patch). * Significant docs update. date_time: * Support constexpr in c++14 and above * Make date_time all inline. Users no longer need to link the library for any functions. Library remains for build compatibility. * Deprecate support for legacy io and USE_DATE_TIME_PRE_1_33_FACET_IO macro * Misc documentation updates and bugfixes. DLL: * Fixes and tests for demangling in boost::dll::smart_library * Make UB sanitizers happy with boost::dll::load_mode::type * Ceased dependence on MPL improving compile times * Clang and ICC on Windows fixes and CI support for those platforms * Maintenance work, including CI hardening and tests improving. Dynamic Bitset: * Fixed a portability issue in the definition of the maximum block limit. Flyweight: * Maintenance work. Geometry: * Improvements - Missing input combinations in intersection() and introduction of tupled-output. - Added d3::point_xyz geometry model (thanks to Digvijay Janartha). * Solved issues - Incorrect definition of EPSG:3785. * Bugfixes - R-tree exception-safety improvement. - Andoyer inverse formula fixed for close points. - Fixed dangling reference in distance algorithm. * Deprecation - Support for C++03 has been deprecated and Geometry will require C++14 from Boost 1.75 onwards. GIL: * Added move constructor and move assignment operator to image class * New member function size() in any_image_view class * Replace Boost.Test with Boost.LightweightTest as the only test framework used in GIL. This also restructured the test/extension/io/ sub-tree and targets in related Jamfile-s. * Removed remaining uses of Boost.MPL * Renamed all macros using BOOST_GIL_ prefix * Renamed all CMake configuration options using BOOST_GIL_ prefix * Removed extension/dynamic_image/reduce.hpp as unused and possibly unfinished. An implementation attempt of techniques described in the paper Efficient Run-Time Dispatching in Generic Programming with Minimal Code Bloat by Lubomir Bourdev, Jaakko Jarvi. * Removed direct dependency on Boost.MPL, Boost.System and Boost.Test. * Started removing public macros for compile-time configuration of I/O extension tests, i.e. BOOST_GIL_IO_TEST_ALLOW_READING_IMAGES and BOOST_GIL_IO_TEST_ALLOW_WRITING_IMAGES. Instead, if a test target is built, it builds all its test cases unconditionally. * Avoid longjmp interaction during destruction of I/O extension objects. * Fixed missing alignment default value in constructor of image class. * Fixed segmentation fault when reading corrupted PNG file. * Fixed illegal initialization of return values in the old IOv1 interface of I/O extension. Histogram: * Added crop command to reduce algorithm * slice command in reduce now works on category axis * Added count accumulator, can be used to add arbitrary metadata to each cell * sum algorithm gained a new argument to optionally sum only over inner bins * Several fixes for bugs in corner cases * Enhanced documentation icl: * Remove references to date_time compiled library. * Fix forward decl lower and upper less equal. * Misc bugfixes. IO: * Made all the IOS state saver classes non-copyable. (Glen Fernandes) * Correctly handle error upon first read from the input stream when reading a quoted string. (Glen Fernandes) * Implemented ostream_joiner for delimiter based joining. (Glen Fernandes) * Relocated ostream_string from the Utility library to the IO library as ostream_put. * Correctly handle stream width and fill in quoted output. (Glen Fernandes) * Optimize quoted output to write directly to the stream buffer. (Glen Fernandes) * Glen Fernandes became the maintainer of the IO library. LexicalCast: * Maintenance work, including CI hardening and better workarounds for broken standard libraries Log: * Default sink used in trivial logging, when no sinks are registered in the logging core, now automatically flushes output after each log record * core::flush now performs a flush on the default sink used for trivial logging, when no sinks are registered. * Added a workaround for some syslog API implementations (e.g. glibc), which do not save the application identification string in openlog call. Such implementations could access already freed memory on each syslog call, resulting in undefined behavior. * Fixed that log file rotation on a specific day of month (e.g. rotation_at_time_point(boost::gregorian::greg_day(1))) could be silently ignored and not happen. * Fixed that text_file_backend::rotate_file could throw if there were no log records written yet and target file name pattern was set. * Ported various components of the library to std::allocator_traits to improve compatibility with C++20 allocators. * Fixed compilation errors when building in MSYS2 Cygwin environment. Math: IMPORTANT: C++03 support is now deprecated and will be removed from March 2021. * Added Cubic Hermite Interpolation. * Added Modified Akima Interpolation. * Added PCHIP Interpolation. * Added Quintic Hermite Interpolation. * Added entropy to numerous distributions. * Allow trivial quadrature case where the two end points are equal, and in addition allow bounds to be interchanged. * Fix exp_sinh quadrature to work with complex types over a non-native range. * Fix miscellaneous compiler warnings in factorial.hpp. * Use std::chrono rather than boost::chrono in timed pFq calculations. * Remove much of the old boost::mpl dependencies to improve constexpr support. Mp11: * Added mp_unique_if (contributed by Kris Jusiak) * Added mp_flatten * Added mp_rotate_left, mp_rotate_right (contributed by Duncan Barber) * Added mp_compose * Added mp_power_set * Added mp_partial_sum * Added mp_iterate Multi-index Containers: * multi_index_container is now AllocatorAware. * Swapping of internal KeyFromValue, Compare, Hash and Pred objects now selects the appropriate swap function between std::swap and ADL candidates, in accordance with standard specifications in [swappable.requirements] * Provided some internal copy constructors and assignment operators whose default implicit definition is deprecated in C++11 onwards ([depr.impldec]), which was warned about on some compilers. Multiprecision: * IMPORTANT: Mark C++03 support as deprecated and due for removal in 2021. * Big update to cpp_int adds faster Karatsuba and Coomba multiplication routines. * Fix conversion of gmp_rational to long double and __float128 * Fix up libtommath support to function with the latest libtom releases. * Fix up some incompatibilities with the latest Intel C++ compiler. * Fix up constexpr arithmetic support for latest MSVC release. Outcome: * Performance of Outcome-based code compiled by clang has been greatly improved. The previous implementation of Outcome's status bitfield confused clang's optimiser, which caused low quality codegen. Unlike most codegen issues, this was noticeably in empirical benchmarks of real world code, as was shown by P1886 Error speed benchmarking. * The safe part of the better_optimisation Outcome v2.2.0 future branch was merged to Outcome v2.1.3 which includes a new status bitfield implementation. This appears to not confuse clang's optimiser, and clang 9 produces code which routinely beats GCC 9's code for various canned use cases. * Installability is now CI tested per commit. Due to installability of standalone Outcome (e.g. make install) breaking itself rather more frequently than is ideal, installability is now tested on CI per commit. * Newer Concepts implementing compilers were unhappy with the early check for destructibility of T and E, so removed template constraints, falling back to static assert which runs later in the type instantiation sequence. * A false positive undefined behaviour sanitiser failure in some use cases of Experimental Outcome was worked around to avoid the failure message. PolyCollection: * Suppressed a potential redundant move warning in boost::poly_collection::for_each. * Fixed a bug by which elements were copied rather than moved in allocator-extended move construction and move assigment between collections with non-propagating, unequal allocators. * Allocator-extended move construction no longer decays to allocator-extended copy construction for the legacy version of libstdc++-v3 shipped with GCC 4.8 (which can also be used by Clang). Stacktrace: * Added documentation on distribution of PDBs * Fixed msvc-9 build * Maintenance work, including test fixes fixing typos CI improvements and hardening, inspect tool fixes. Test: * Boost.test v3.13 see the Changes log for more details. * New feature: It is now possible to combine tolerance indication, user message and collection comparison modifier in a single BOOST_TEST expression. See change logs for more details. ThrowException: * Added an overload of throw_exception that takes a boost::source_location object. * NOTE: Projects using BOOST_THROW_EXCEPTION with exceptions disabled will need to add a definition of this new overload. TTI: * Added introspection of function templates for more recent C++ compilers versions from gcc and vc++. as well as all versions of clang. Older versions of vc++ before 14.0 and gcc prior to 4.8 may fail. * Added specific introspection for elements of struct/class, enum, and union types, which can be used for more fine-grained introspection than the general 'type' introspection. TypeIndex: * Maintenance work, including CI integration with inspect tool. Utility: * The ostream_string facility has moved from the Utility library to the IO library as ostream_put. Variant: * Removed unused includes * Fixed zero-as-null-pointer-constat warnings * Maintenance work, including typo fixes. Variant2: * Added support for std::hash, boost::hash. * variant<T...> is now trivial when all types in T... are trivial. This improves performance by enabling it to be passed to, and returned from, functions in registers. WinAPI: * Headers in boost/detail/winapi are deprecated and will be removed in a future release. * Boost.WinAPI headers no longer include winerror.h. Include boost/winapi/error_codes.hpp to get Windows error codes.
meta-pkgs/boost/Makefile.common: define some variable first Define USE_TOOLS and USE_LANGUAGES before including <bsd.prefs.mk>.
meta-packages/boost: remove obsolete SUBST action boostcpp.jam does not contain the word PREFIX anymore.
boost: updated to 1.72.0 Version 1.72.0 Asio: Changed the async_initiate helper function to automatically deduce its return type, for C++11 or later. Changed all asynchronous operations to use automatically deduced return types, for C++14 or later. Introduced concepts to support async_initiate. Added the nested template type rebind_executor to all I/O object types. Changed the initiation function objects to report their associated I/O executor via the nested type executor_type and member function get_executor(). Added the default_completion_token trait, giving I/O executor types an associated default completion token type for use with asynchronous operations. This trait is specialised for the use_awaitable completion token, for example, to allow asynchronous operations to be used as follows: co_await socket.async_connect(my_endpoint). Added missing async_initiate to the Windows-specific I/O objects' asynchronous operations. Ensured that the executor type is propagated to newly accepted sockets. Changed to require that Protocol copy and move operations never throw. Changed to require that Endpoint default constructor and move operations never throw. Added the noexcept qualifier to protocol accessors. Added the noexcept qualifier to socket move constructors. Fixed issues associated with opening serial ports on Windows: Use the correct constant to initialise the RTS control flag. Specify a default baud rate (9600). Fixed a lost "outstanding work count" that can occur when an asynchronous accept operation is automatically restarted. Consult the Revision History for further details. Atomic: Added a workaround for __float128 not being considered as a floating point type by some versions of libstdc++. Improved compatibility with clang-win compiler. Beast: This is a maintenance update containing bug fixes, and updates to use the new features delivered in Boost.Asio. We'd love to know how you or your company use Beast, consider adding an entry to the Companies and Individuals Using Beast list. See the full Release Notes for a complete list of changes. Circular Buffer: Fix: max_size() now takes the allocator's max_size() into account. (Glen Fernandes) Context: architecture s390x supported execution_context removed Endian: Made endian_reverse, conditional_reverse and *_to_* constexpr on GCC and Clang Added convenience load and store functions Added floating point convenience typedefs Added a non-const overload of data(); changed its return type to unsigned char* Added __int128 support to endian_reverse when available Added a convenience header boost/endian.hpp Filesystem: Extracted filesystem_error to exception.hpp; file_status and associated enums and functions to file_status.hpp; directory_entry, directory_iterator and recursive_directory_iterator to directory.hpp. Deprecated: For backward compatibility operations.hpp still includes the new headers exception.hpp, file_status.hpp and directory.hpp, unless BOOST_FILESYSTEM_NO_DEPRECATED macro is defined. These implicit includes are considered deprecated and will be removed in a future release. Users are encouraged to include the new headers directly or include filesystem.hpp. The filesystem_error exception is now implemented in the compiled library of Boost.Filesystem. Users may need to add linking with Boost.Filesystem library in their projects. On POSIX.1-2008 platforms, use utimensat instead of utime. utime is declared obsolete in POSIX.1-2008 and can be disabled e.g. in uClibc-ng. directory_iterator is now left in the end state on memory allocation errors. In directory_iterator on POSIX systems, support for readdir/readdir_r has been reworked to avoid memory allocations for dirent structures when readdir is used. This reduces memory consumption and eliminates the possibility of buffer overruns in case if readdir produces a very long directory name. On Windows, use Boost.WinAPI to select the target Windows version. New: Added directory_options enum, which reflects the same named enum from C++20. The enum is supported in directory_iterator and recursive_directory_iterator to customize iteration behavior. In particular, the iterators now support skipping directories that can't be opened due to insufficient permissions. The symlink_option enum is now deprecated and should be replaced with directory_options. By default, recursive_directory_iterator is now reset to the end state in case of errors, as required by C++20. New: Added directory_options::pop_on_error option, which configures recursive_directory_iterator so that it attempts to recover from iteration errors by repeatedly invoking pop() until it succeeds or the end state is reached. New: Added directory_options::skip_dangling_symlinks option, which configures recursive_directory_iterator so that it doesn't follow dangling directory symlinks and continues iteration instead of reporting an error. Deprecated: The following members of recursive_directory_iterator are now marked as deprecated: level(), no_push_pending(), no_push_request(), no_push(). Users are advised to replace their use with the standard counterparts: depth(), recursion_pending(), disable_recursion_pending(). Note that recursion_pending() has the opposite meaning compared to no_push_pending() and no_push_request(). Deprecated methods will be removed in a future release. Fixed path::lexically_relative (and any dependent algorithms) to correctly handle empty, dot and dot-dot path elements in its argument. The behavior is made closer to C++17 std::path::lexically_relative in that empty and dot path elements are ignored and dot-dot path elements are accounted by decreasing the number of dot-dot path elements to generate in the resulting relative path. Functional/Factory: Glen Fernandes rewrote the implementations of factory and value_factory to provide the following features: Support r-value arguments when possible Support arbitrary number of arguments via variadic templates when possible Support allocators that are final Support allocators that use fancy pointers Support for disabled exceptions (BOOST_NO_EXCEPTIONS) Improved compilation times The following features have been removed: Increasing limits for C++03 compilers through BOOST_FUNCTIONAL_VALUE_FACTORY_MAX_ARITY Using boost::none_t in place of void through BOOST_FUNCTIONAL_FACTORY_SUPPORT_NONE_T GIL: Added GSoC 2019: Lanczos resampling for image down scaling. GSoC 2019: Methods for binary thresholding, inverted binary thresholding and truncation thresholding. GSoC 2019: Otsu thresholding method. GSoC 2019: Adaptive thresholding using mean or gaussian-weighted sum of the neighbourhood area. GSoC 2019: Harris response calculation (corner detector without non-maximum filtering). GSoC 2019: Hessian corner detector. GSoC 2019: Types for defining 2D kernel, kernel_2d and kernel_2d_fixed, in Numeric extension. GSoC 2019: Implementation of 2D convolution as new function convolve_2d. GSoC 2019: Box filtering using the average filter. GSoC 2019: Blur function based on normalized mean filter. GSoC 2019: Sobel and Scharr operators. GSoC 2019: Median filter to remove noise from image. Continued adding new test cases and significantly improved overall test coverage. Documented purpose of cached_location_t. Function convolve_1d in Numeric extension for convenient use of convolve_rows and convolve_cols. Function extend_boundary in Numeric extension to perform image boundary extension. Project release notes maintained in Markdown file RELEASES.md. Changed Move all tests, core features and extensions, inside test/ directory. Removed Replace Boost.MPL with Boost.MP11. Removed use of Boost.TypeTraits. Dropped support for GCC <= 4.8. Remove include/boost/gil/version.hpp file as unused. Fixed Undetermined value of default-initialized channel and pixel objects. Undefined behaviour due to std::is_trivially_default_constructible specializations. Crash when reading PNG files with an invalid header. Applied the Rule of Three for numerous types. Removed uses of deprecated implicit definition of defaulted copy assignment operator or copy constructor. Histogram: Several new features and performance improvements, some bug-fixes See the full Release Notes for a complete list of changes Log: Improved compatibility with clang-win compiler. MPI: Documentation clarifications. Fixed scatterv bug when using explicit input buffer offsets. Enable usage of MPI_Probe and friend with Intel MPI >= 2019.4 Symbol visibility on Windows Math: Added Hypergeometric functions 1F0, 0F1, 2F0, 1F1 and pFq. Added Jacobi polynomial (and derivatives) evaluation. Added Gegenbauer polynomial (and derivatives) evaluation. Added Cardinal B-Splines (and derivatives) as polynomial functions in their own right. Added Cardinal Trigonometric Interpolation. Added new statistics sub-section. Added One Sample Student's T Test. Added Anderson Darling test for normality. Added Ljung Box test for auto-correlation. Added Runs test for random sequences. The headers boost/math/tools/univariate_statistics.hpp and boost/math/tools/bivariate_statistics.hpp, have been deprecated in favor of boost/math/statistics/univariate_statistics.hpp and boost/math/statistics/bivariate_statistics.hpp. Added The Empirical CDF distribution. Reworked the Sterling approximation used by multiprecision gamma functions to be applicable to all the function that use the Lanczos approximation at regular precision. Also extended Lanczos approximations up to 100 decimal digit precision. Multiprecision: Big constexpr update allows cpp_int and float128 arithmetic to be fully constexpr with gcc and clang 9 or later, or any compiler supporting std::is_constant_evaluated(). Fix bug in variable precision mpf_float which causes it to go into a tailspin trying to select the correct precision - see https://github.com/boostorg/multiprecision/issues/164. Outcome: Enhancements: Standalone outcome is now make install-able, and cmake find_package() can find it. Note that you must separately install and find_package() Outcome's dependency, quickcpplib, else find_package() of Outcome will fail. The git submodule mechanism used by standalone Outcome of specifying dependent libraries has been replaced with a cmake superbuild of dependencies mechanism instead. Upon cmake configure, an internal copy of quickcpplib will be git cloned, built and installed into the build directory from where an internal find_package() uses it. This breaks the use of the unconfigured Outcome repo as an implementation of Outcome, one must now do one of: 1. Add Outcome as subdirectory to cmake build. 2. Use cmake superbuild (i.e. ExternalProject_Add()) to build and install Outcome into a local installation. 3. Use one of the single header editions. For standalone Outcome, the current compiler is now checked for whether it will compile code containing C++ Concepts, and if it does, all cmake consumers of Outcome will enable C++ Concepts. Set the cmake variable CXX_CONCEPTS_FLAGS to an empty string to prevent auto detection and enabling of C++ Concepts support occurring. OUTCOME_TRY operation now hints to the compiler that operation will be successful. [P1886 Error speed benchmarking](https://wg21.link/P1886) showed that there is considerable gain in very small functions by hinting to the compiler whether the expression is expected to be successful or not. OUTCOME_TRY previously did not hint to the compiler at all, but now it does. A new suite of macros OUTCOME_TRY_FAILURE_LIKELY hint to the compiler that failure is expected. If you wish to return to the previously unhinted behaviour, define OUTCOME_TRY_LIKELY(expr) to (!!expr). Support for C++ Coroutines has been added. This comes in two parts, firstly there is now an OUTCOME_CO_TRY() operation suitable for performing the TRY operation from within a C++ Coroutine. Secondly, in the header outcome/coroutine_support.hpp there are implementations of eager<OutcomeType> and lazy<OutcomeType> which let you more naturally and efficiently use basic_result or basic_outcome from within C++ Coroutines -- specifically, if the result or outcome will construct from an exception pointer, exceptions thrown in the coroutine return an errored or excepted result with the thrown exception instead of throwing the exception through the coroutine machinery (which in current compilers, has a high likelihood of blowing up the program). Both eager<T> and lazy<T> can accept any T as well. Both have been tested and found working on VS2019 and clang 9. make_error_code() and make_exception_ptr() are now additionally considered for compatible copy and move conversions for basic_result<>. This lets you construct a basic_result<T, E> into a basic_result<T, error_code>, where E is a custom type which has implemented the ADL discovered free function error_code make_error_code(E), but is otherwise unrelated to error_code. The same availability applies for exception_ptr with make_exception_ptr() being the ADL discovered free function. basic_outcome<> has less support for this than basic_result<> in order to keep constructor count down, but it will accept via this mechanism conversions from basic_result<> and failure_type<>. Bug fixes: The detection of [[nodiscard]] support in the compiler was very mildly broken. PolyCollection: Maintenance work. Preprocessor: Topic added which discusses emptiness Support for the C++20 __VA_OPT__ construct BOOST_PP_VARIADIC_HAS_OPT whether __VA_OPT__ is supported at the C++20 level BOOST_PP_CHECK_EMPTY test for emptiness using __VA_OPT__ at the C++20 level BOOST_PP_VA_OPT more flexible alternative to __VA_OPT__ at the C++20 level Smart Pointers: Implemented allocate_unique for scalars and arrays. (Glen Fernandes) Test: Boost.test v3.12 see the Changes log for more details. New feature: Support for C++17 std::string_view has been added. Better diagnostic on boost::exception and no rtti mode (thanks to Mikhail Pilin / [pull_request 234]) VMD: BOOST_VMD_IS_EMPTY updated to use __VA_OPT__ at the C++20 level has 100% reliability
Update to 1.71.0
Changelog:
New Libraries
Variant2: A never-valueless, strong guarantee implementation of std::variant, from Peter Dimov.
Updated Libraries
Align:
Support for any integral type in the integral versions of align_up and align_down.
Revised the implementation of aligned_allocator to no longer require a specialization for void.
Define propagate_on_container_move_assignment and is_always_equal in aligned_allocator.
Asio:
Improved performance slightly by eliminating a redundant move construction when completed handlers are dispatched.
Eliminated a compiler warning by annotating a case fall-through in the free function connect() implementation.
Fixed the is_*_buffer_sequence detection traits for user-defined sequence types.
Fixed some Windows-specific warnings about an incompatible pointer cast when obtaining the CancelIoEx entry point.
Changed to automatically set the defaults when opening a serial port on Windows.
Changed the serial port get_option() member function to be const.
Fixed a name hiding issue with the WinRT stream-oriented socket backend's shutdown function.
Applied a minor fix to the documentation for is_dynamic_buffer.
Added some support for Haiku OS.
Added wolfSSL compatability.
Changed to require C++17 or later for coroutines TS support with clang.
Fixed a doxygen generation problem in the tutorial.
Ensured example programs are correctly incorporated into the documentation.
Any:
Static initialization of the default constructed boost::any is now possible.
Fixed performance regression in assignment on a compilers without move-semantics.
Maintenance work.
Beast:
This version consists mostly of bug fixes and performance improvements.
Substantial work included for the split compilation mode, to reduce compile time when defining BOOST_BEAST_SEPARATE_COMPILATION.
We'd love to know how you or your company use Beast, consider adding an item to the Companies and Individuals Using Beast list.
See the full Release Notes for a complete list of changes.
Circular Buffer:
Correct doxygen generated reference to no longer show internal members. (Glen Fernandes)
Eliminate ubsan warning on add and sub. (Glen Fernandes)
Fix incorrect check in is_uninitialized. (Niklas Fejes)
Container:
Fixed bugs:
GitHub #47: "added alignment specification for small_vector".
GitHub #88: "Implement C++17 MoveAssignable requirements for self-move assignments".
GitHub #107: "Alignment ignored in resource_adaptor".
GitHub #109: "Get rid of integer overflow in copy_move_algo.hpp (-fsanitize=integer)".
GitHub #110: "Avoid gcc 9 deprecated copy warnings in new_allocator.hpp".
GitHub #112: "vector::resize() compilation error with msvc-10..12: data is not a member of boost::detail::aligned_storage".
GitHub #114: "Fix small_vector noexcept specification".
GitHub #116: "MSVC + boost 1.70 compilation error when windows.h is already included (detail/thread_mutex.hpp)".
GitHub #117: "flat_map/map::insert_or_assign with hint has wrong return types".
GitHub #118: "Non-unique inplace_set_difference used in in flat_tree_merge_unique and iterator invalidation in insert_unique".
GitHub #122: "Fix has_trivial_destructor_after_move".
GitHub #123: "With heterogeneous lookup, equal_range can result in a range with length greater than 1".
deque can now have options, using deque_options. The block size/bytes can be be specified.
static_vector can now have options, using static_vector_options. Alignment and throwing behaviour can be be specified.
small_vector can now have options, using small_vector_options. Alignment and growth factor can be be specified.
Context:
Add support for RISC-V LP64D
#72: Fix ABI violation on ppc64 ELFv2
#99: cleanup of stack if creating ucontext fails
Conversion:
Maintenance work.
Core:
Added functions alloc_construct, alloc_construct_n, alloc_destroy, and alloc_destroy_n in <boost/core/alloc_construct.hpp> for allocator aware and exception safe construction and destruction of objects and arrays. (Glen Fernandes)
Added constexpr functions first_scalar in <boost/core/first_scalar.hpp> for obtaining a pointer to the first scalar element of an array. Given a pointer of type T* they return a pointer of type remove_all_extents_t<T>*. (Glen Fernandes)
Added class template noinit_adaptor in <boost/core/noinit_adaptor.hpp> which is an allocator adaptor that converts any allocator into one whose construct(ptr) performs default initialization via placement new, and whose destroy(ptr) invokes the value_type destructor directly. (Glen Fernandes)
Added class template default_allocator in <boost/core/default_allocator.hpp>, which can serve as a minimal default allocator that has interface similar to C++20 std::allocator, supports configurations with disabled exceptions and does not have std as an associated namespace. The allocator uses operator new and operator delete for allocation. (Glen Fernandes)
In <boost/core/uncaught_exceptions.hpp> header, added workarounds for better compatibility with QNX SDP 7.0 when libc++/libc++abi libraries are used. (Andrey Semashev, #59)
The <boost/detail/sp_typeinfo.hpp> header is now marked as deprecated and will be removed in a future release. <boost/core/typeinfo.hpp> should be used instead. (Peter Dimov)
Dynamic Bitset:
Enabled hardware-assisted popcount on MSVC (#38).
Added support for boost::hash and std::hash (#45).
Support copy-initialization with default constructor (#48).
Endian:
Clarified requirements on the value type template parameter
Added support for float and double
Added endian_load, endian_store
Updated endian_reverse to correctly support all non-bool integral types
Moved deprecated names to the deprecated header endian.hpp
Fiber:
documentation for shared_work updated
Filesystem:
Fixed incorrect error_code returned from directory iterator increment when readdir_r is used.
For path, fixed rvalue-aware operator/ return type to return an rvalue instead of rvalue reference. This fixes leaving a dangling reference in the user's code if the result of operator/ is bound to a const reference. (#110)
Fixes for better compatibility with Windows CE. (#24)
Added minimal support for CMake. (#106)
Flyweight:
Maintenance work.
Histogram:
New features:
Support for thread-safe storages and new thread-safe accumulators
Support for compiling without exceptions/RTTI (increases performance by 10-20 %) (with Glen Fernandes)
Performance improvements for 1D and 2D histograms
boost::histogram::indexed now returns forward iterator range instead of input iterator range
boost::histogram::indexed_range::accessor is now non-copyable and acts like reference to cell value, making more algorithms from the C++ stdlib work
boost::histogram::algorithm::reduce with new slice option and option fusion
boost::histogram::algorithm::project accepts runtime indices for static histograms
Bug Fixes:
boost::histogram::algorithm::reduce also works on histograms that have some axis types without reduction support
boost::histogram::axis::traits::update now works correctly for boost::histogram::axis::variant
Other:
100 % test coverage
Reduced internal Boost dependencies
Improved documentation and examples
Guaranteed no-throw moves for all builtin axis types
Compile cleanly at higher warning levels
See changelog for more details.
IoStreams:
Fixed processing of multi-stream files (#87).
Added support for multi-threaded LZMA (#95).
Interprocess:
GitHub #85 ("warning: Implicit conversion loses integer precision").
GitHub #86 ("warning: Possible misuse of comma operator").
Intrusive:
GitHub #42: Documentation does not describe treap priority_of_value changes
GitHub #43: Fix tests with BOOST_INTRUSIVE_VARIADIC_TEMPLATES enabled
GitHub #45: Disable variadic templates for MSVC-12 to avoid ICEs
LexicalCast:
Added tests for boost::filesystem::path conversions #25.
Maintenance work, including #28.
Log:
New features:
Improved support for C++17 std::string_view in basic_formatting_ostream. The string view can now participate in character code conversion on output.
Added auto_newline formatter and stream manipulator. It can be used to ensure that formatted output always ends with a newline while avoiding duplicate newlines.
In the output stream, text file and text multi-file sink backends added support for configuring behavior with regard to appending a trailing newline to every formatted log record. Use auto_newline_mode named parameter of the backend constructor or call the set_auto_newline_mode method on the sink backend.
Note: The default behavior with regard to trailing newlines added by sink backends has changed slightly compared to the previous Boost.Log releases. The backends will now only add a trailing newline if there isn't one in the formatted log message string already. In previous releases a newline was added unconditionally.
Added support for passing arbitrary function objects in the filter and format named parameters to sink constructors and convenience functions for initializing sinks. For example, it is now possible to specify C++11 lambda functions directly in these parameters. (#63)
In the default filter and formatter factories used in filter and formatter parsers, added support for severity level attribute values of type boost::log::trivial::severity_level. For filters, the support is limited to attributes with "Severity" name.
Bug fixes:
Fixed incorrect parsing of components of the rotated file names while scanning for files in the text file sink backend. If the file name pattern ended with a placeholder (for example, a file counter), the scan_for_files method would not find files matching that pattern in the target storage, leaving them unmanaged. In particular, such files would not be deleted to free target storage. (#78)
Updated basic_formatting_ostream and basic_record_ostream to make it possible to overload stream output operators for pointers to user-defined types. User-defined operator<< overloads taking std::basic_ostream and a pointer argument should now be picked up by the compiler when the pointer is being written to one of Boost.Log streams. (#84)
See changelog for more details.
Math:
New features:
Catmull-Rom interpolator now works in C++11
Cardinal quadratic B-spline interpolation
Domain of elliptic integrals extended
sin_pi and cos_pi performance improvements
Forward-mode automatic differentiation
Vector valued barycentric rational interpolation
Ooura's method for evaluation of Fourier integrals
Bug fixes:
Multiple compatibility issues with Multiprecision fixed
Lambert-W fixed on a rare architecture
Metaparse:
New features:
In C++11 variadic template support for the following: sequence, one_of_c, one_of, repeated_one_of, repeated_one_of1, one_char_except_c, one_char_except.
Bug fixes:
BOOST_METAPARSE_STRING does not use out of range character values as template arguments.
any_of_c<> does not create empty array in C++14.
Move:
Git Issue #26: "Invalid iterator increment/decrement in the last iteration of adaptive_sort_combine_blocks".
Multi Array:
Simplify allocator support by using new alloc_construct_n and alloc_destroy_n facilities from Core. (Glen Fernandes)
Multi-index Containers:
Added variants of const_mem_fun and mem_fun for differently qualified member functions (issue #24).
Terse key specification syntax now correctly handles noexcept-specified member functions (issue #24).
Outcome:
Enhancements:
#184 As per request from Boost release managers, relocated version.hpp and revision.hpp into detail, and added the Boost licence boilerplate to the top of every source file which was missing one (I think). Also took the opportunity to run the licence restamping script over all Outcome, so copyright dates are now up to date.
#185 Add FAQ item explaining issue #185, and why we will do nothing to fix it right now.
#189 Refactored the OUTCOME_TRY implementation to use more clarified customisation points capable of accepting very foreign inputs. Removed the std::experimental::expected<T, E> specialisations, as those are no longer necessary. Fixed the documentation for the customisation points which previously claimed that they are ADL discovered, which they are not. Added a recipe describing how to add in support for foreign input types.
#183 Added a separate motivation/plug_error_code specifically for Boost.
Bug fixes:
OUTCOME_VERSION_MINOR hadn't been updated to 1.
#181 Fix issue #181 where Outcome didn't actually implement the strong swap guarantee, despite being documented as doing so.
#190 Fix issue #190 in Boost edition where unit test suite was not runnable from the Boost release distro.
#182 Fix issue #182 where trait::is_exception_ptr_available<T> was always true, thus causing much weirdness, like not printing diagnostics and trying to feed everything to make_exception_ptr().
#192 Fix issue #192 where the std::basic_outcome_failure_exception_from_error() was being defined twice for translation units which combine standalone and Boost Outcome's.
Parameter:
Upgraded keyword generation macro BOOST_PARAMETER_TEMPLATE_KEYWORD (#15).
Moved keyword generation macro BOOST_PARAMETER_NESTED_KEYWORD from Accumulators to this library (#28).
Added support for std::reference_wrapper and std::ref() (#16).
Moved boost::parameter::required, boost::parameter::optional, and boost::parameter::deduced metafunction definitions to their own header files in directory boost/parameter (#18).
Added support for Boost.Parameter-enabled function call operators (#20).
Added support for parameter category qualifiers "forward", "consume", and "move_from" (current qualifiers are "in", "out", and "in_out") (#21) (#23) based on http://www.modernescpp.com/index.php/c-core-guidelines-how-to-pass-function-parameters. Added new usage syntax BOOST_PARAMETER_NAME((object-name), namespace-name) qualifier(tag-name)) and BOOST_PARAMETER_NAME(qualifier(name)). (Existing code that uses qualifiers directly and correctly with BOOST_PARAMETER_FUNCTION and other code generation macros should remain unaffected for now, so no breaking changes.) The reason for the change in usage is to enable applying of parameter category constraints to Boost.Parameter-enabled functions and constructors invoked through argument composition. (Otherwise, it is currently possible to use argument composition to bypass parameter category constraints applied in BOOST_PARAMETER_FUNCTION et. al.)
Added support for perfect forwarding (#23) (#26), so that parameter::parameters::operator() can accept non-const rvalues. As a positive side effect, Boost.Parameter-enabled functions and constructors are no longer bound by BOOST_PARAMETER_MAX_ARITY on compilers that support perfect forwarding. User code can now check for this support by detecting the configuration macro BOOST_PARAMETER_HAS_PERFECT_FORWARDING, or manually turn off this support by defining the configuration macro BOOST_PARAMETER_DISABLE_PERFECT_FORWARDING.
Added metafunctions boost::parameter::is_argument_pack (#27), boost::parameter::are_tagged_arguments (#52), and boost::parameter::result_of::compose (#75).
Added variadic function template boost::parameter::compose() which takes in named arguments and returns them in an argument pack (#52). For compilers that do not support perfect forwarding, the configuration macro BOOST_PARAMETER_COMPOSE_MAX_ARITY determines the maximum number of arguments that boost::parameter::compose() can take in (#61).
Added code generation macros BOOST_PARAMETER_BASIC_FUNCTION_CALL_OPERATOR, BOOST_PARAMETER_BASIC_CONST_FUNCTION_CALL_OPERATOR, BOOST_PARAMETER_NO_SPEC_FUNCTION, BOOST_PARAMETER_NO_SPEC_MEMBER_FUNCTION, BOOST_PARAMETER_NO_SPEC_CONST_MEMBER_FUNCTION, BOOST_PARAMETER_NO_SPEC_FUNCTION_CALL_OPERATOR, BOOST_PARAMETER_NO_SPEC_CONST_FUNCTION_CALL_OPERATOR, BOOST_PARAMETER_NO_SPEC_CONSTRUCTOR, and BOOST_PARAMETER_NO_SPEC_NO_BASE_CONSTRUCTOR (#52).
Added support for Boost.MP11 (#47) (#66) (#70). User code can now check for this support by detecting the configuration macro BOOST_PARAMETER_CAN_USE_MP11, or manually turn off this support by defining the configuration macro BOOST_PARAMETER_DISABLE_MP11_USAGE.
Improved support for parameter-dependent return types via SFINAE (#73).
PtrContainer:
Fix a ptr_vector regression introduced in 1.66.0 (#24).
PolyCollection:
Maintenance work.
SmartPtr:
Added aliasing constructors to weak_ptr
Added weak_ptr<T>::empty()
Added enable_shared_from, shared_from, and weak_from
Stacktrace:
Fixed output of name(), source_location() and source_line() for the default constructed frame with thread sanitizer builds in C++98 mode.
Fixed output of long strings from name() and source_location() on MSVC #78.
Maintenance work.
Test:
Boost.test v3.11 see the Changes log for more details.
Breaking changes:
Boost.Test shows deprecation warnings if some very old headers as deprecated. If you encounter such warnings, please follow the indications: those headers will be removed in a future release.
New feature:
Now BOOST_TEST can be used to compare abstract types
Bug fixes and pull requests:
GitHub Issues: #209, #218
GitHub Pull Requests: #219, #224
Utility:
Implemented function template ostream_string in <boost/utility/ostream_string.hpp> to optimally write any kind of string content to an output stream. It satisfies the requirements of [ostream.formatted.reqmts]. (Glen Fernandes)
Optimized the stream output operators of basic_string_view and basic_string_ref to write directly to the rdbuf stream buffer. (Glen Fernandes)
Uuid:
Breaking change: MD5 name-based uuid generation was corrected to be identical on all endian systems. Define BOOST_UUID_COMPAT_PRE_1_71_MD5 to keep the result in a format compatible with 1.66 through 1.70. This does not affect the default name-based uuid generation which is based on SHA1. (#109)
Variant:
Fixed compilation of boost::apply_visitor with variants passed by non const reference in #68. Many thanks to Ed Catmur for providing the fix.
Added support for std::hash (#49). Macro BOOST_VARIANT_DO_NOT_SPECIALIZE_STD_HASH could be defined to avoid those specializations.
Added micro optimizations for binary size and performance by Nikita Kniazev in #63 and #66.
Maintenance work, including #64 by Nikita Kniazev and #67 by Hans Dembinski.
YAP:
Added an example showing how to make self-evaluating YAP expressions (that is, expressions that don't need an explicit call to evaluate() or transform()).
Update to 1.70.0
Changelog:
New Libraries
Outcome: A set of tools for reporting and handling function failures in contexts where directly using C++ exception handling is unsuitable, from Niall Douglas.
Histogram: Fast and extensible multi-dimensional histograms with convenient interface for C++14, from Hans Dembinski.
Updated Libraries
Asio:
This release includes a number of new features, bug fixes, performance enhancements, and documentation improvements. Notable changes include:
Added the ability to use custom I/O executors with I/O objects (such as sockets).
Added a new async_result form with an initiate static member function.
Updated the Coroutines TS support and promoted it to the asio namespace.
Added a new DynamicBuffer_v2 concept which is CopyConstructible.
Added a new async_compose function that simplifies the implementation of user-defined asynchronous operations.
Added a make_strand helper function.
Relaxed the completion condition type requirements to only require move-constructibility rather than copy-constructibility.
Added a constructor for local::basic_endpoint that takes a string_view.
Added the noexcept qualifier to various functions.
Added a new BOOST_ASIO_DISABLE_VISIBILITY configuration #define.
Enabled recycling of the memory used to type-erase a function object with the polymorphic executor.
Changed receive operations to return the correct number of bytes transferred when truncation (error::message_size) occurs on a datagram-oriented socket.
Fixed calculation of absolute timeout when the backend uses pthread_cond_timedwait.
Changed the range-based asynchronous connect operation to deduce the EndpointSequence iterator type.
Fixed buffer_sequence_begin and buffer_sequence_end to prevent implicit conversion.
Ensured SSL handshake errors are propagated to the peer before the local operation completes.
Suppressed the eof error on SSL shutdown as it actually indicates success.
Added a fallback error code for when we OpenSSL produces an SSL_ERROR_SYSCALL result without an associated error.
Changed composed asynchronous read and write operations to move buffer sequence objects.
Fixed a macOS-specific warning about the deprecation of OSMemoryBarrier.
Fixed compile errors that occur when using the composed read and write operations with MSVC 11.0.
Improved dispatch, post and defer documentation.
Fixed a Windows-specific memory leak that may occur when system_executor is used.
Consult the Revision History for further details.
Beast: BIG Update!!!
Some APIs have changed.
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More tutorials, code like the pros!
Networking Refresher teaches you from the ground up.
Updated Asynchronous Echo example
Updated Detect SSL composed operation tutorial
websocket-chat-multi threaded chat server with a JavaScript browser client
basic_stream and tcp_stream offer:
Timeouts: async_read_some, async_write_some complete with error::timeout on expiration!
Traffic-shaping policies simple and unlimited, or a user-defined RatePolicy!
Put the strand directly on the socket using P1322R0, no more bind_executor at call sites!
Base classes async_base and stable_async_base and handle all composed operation boilerplate for you.
ssl_stream provides a movable, assignable SSL stream with a flat write optimization.
All asynchronous operations use Asio's async_initiate for efficient integration with Coroutines TS.
⚡ faster compilation, define BOOST_BEAST_SEPARATE_COMPILATION and #include <boost/beast/src.hpp> in one of your .cpp files!
See the full Release Notes for a complete list of changes.
Context:
#91: cleanup of stack if creating ucontext fails
#97: add missing BOST_CONTEXT_DECL in stack_context
#98: fix jump_i386_sysv_macho writing garbage to the x87 control word
Coroutine2:
#28: don't crash on pthread_cancel
DLL:
New macro BOOST_DLL_USE_STD_FS. Define it to 1 to make the Boost.DLL use C++17's std::filesystem::path, std::system_error and std::error_code (#21). Note that exception types change from boost::system::system_error to std::system_error, so make sure to update catches.
Significant rewrite of the dynamic loadable detection and decoration logic. More precise errors are now reported in case of loading failures. Added shared_library::decorate() function that returns a decorated path to the library without doing any platform related queries and detections. Prefer using shared_library::load and shared_library constructors for better results (many thanks to Loïc Touraine for the work PR#23).
CI hardening, docs updates, typos fixes, cleanups and mg
#196: fix high contention on remote_ready_splk_
Filesystem:
Fixed a few instances of dereferencing std::string::end() in path implementation.
Fixed program termination in case of out of memory condition in directory iteratorsnce to error_code. (#58)
Fixed possible linking errors caused by missing definitions of static members of path. (#12759)
Fixed possible use of uninitialized data in directory iterator increment operation on Linux.
Added support fortatus query overloads for directory_entry. This avoids a relatively expensive OS query when file status is requested for a result of dereferencing a directory iterator. (PR#55)
Reworked current_path and read_symlink implementation to avoid possiblfilesystems. The functions now have an internal limit of the path size they will accept from the OS, which is currently 16 MiB.
Increased the size of the internal buffer used by copy_file.
Integer:
Added Extended Euclidean Algorithm and Modular Multiplicative Inverse function. (Nick Thompson, PR#11)
Log:
New features:
Added support for generating another log file name before collecting the file in the text file sink backend. This allows to combine appending to aexisting log file with timestamps and file counters in log filenames, and, consequently, file collection in general.
See changelog for more details.
Math:
New features:
Add Lanczos smoothing derivatives
Move numols/ to boost/math/differentiation/finite_difference.hpp.
Add mean, variance, skewness, kurtosis, median, Gini coefficient, and median absolute deviation to tools/univariate_statistics.hpp.
Add correlation coefficients and covariand absolute Gini coefficient, Hoyer sparsity, oracle SNR, and the M[sub 2]M[sub 4] SNR estimator to tools/signal_statistics.hpp.
Add total variation, l0, l1, l2, and sup norms, as well as corresponding distance functions to tools/norms.hpp.
for polynomials, support complex coefficients, add .prime() and .integrate() methods.
Add quadratic_roots to tools/roots.hpp.
Add support for complex-valued functions to Newton's method in roots.hpp.
Add Catmull-Rom inted mp_invoke to mp_invoke_q
Added mp_similar
Added mp_set_union, mp_set_intersection, mp_set_difference
Added mp_not_fn
Added mp_transform_first, mp_transform_second, mp_transform_third
Added mp_filter
Addedp_valid_q
Added mp_back, mp_pop_back
Multi-index Containers:
size_type and difference_type are now defined as the allocator's same-named types. This will not make any difference in the vast majority of cases, but allows for some degreevia user-defined allocator types (see issue #17 for motivation). For the moment being, this change is not documented in the reference section (i.e., it has semi-official status).
Maintenance work.
Multiprecision:
Fix various conversioncheck for compatibility with Boost.Optional.
Prevent instantiation of std::numeric_limits on any old type when checking for convertibility. See #98.
Update variable precision code to account for arbitrary precision integers. See #103.
lization archives.
Fix bug in fixed precision iostream formatting in mpf_float and mpfr_float. See #113.
Add more overloads for special functions which are better handled natively by MPFR.
Fixed bug in generic exp implementation wh.
Fixed generic conversion from float to integer to avoid undefined behaviour. See #110.
PolyCollection:
Improved handling of stateful allocators and allocator propagation traits, after an error reported by Billy O'Neal (PR#9).
ug with an internal cache structure.
Spirit:
Removed use of deprecated boost/detail/iterator.hpp header. PR#432
X3
Integer parsers should now handle user defined types. PR#429
Note: The check_overflow trait defan std::numeric_limits<T>::is_bounded instead of boost::integer_traits<T>::is_integral.
Removed sequence into plain parsing. Now it triggers a compile time error instead of silently parsing the the sequence and taking the last value as a resulte_rule instantiation with BOOST_SPIRIT_INSTANTIATE when:
A rule has no attribute. PR#455
An actual attribute is not of type a rule was declared with. PR#456 #457
A huge thanks goes out to Xeverous for reporting Fixed unneded attribute synthesization and no-transformation attribute reference pass-through in rules. #444 PR#449 PR#452
Removed broken 1.0#INF parser. It was poorly documented and never worked. #415 PR#458 #8699
The undocumenoved due to bugs PR#449 and to simplify attribute transformation. PR#460
If you were using it to workaround bugs in attribute transformation - they should not be needed anymore as of this release.
The integer value parser now respe10 value. PR#469
Fixed underflow check for a (Min % Base) == 0 corner case. PR#469
Fixed an output value on overflow of IgnoreOverflowDigits=true integer parser. PR#470
Container attribute elements were copyied, but notial handling of references in transform_attribute was removed. PR#480
V2
Macro name collisions and namespace conflicts with Boost.Endian were fixed. PR#349 PR#482
utree
Fixed UB in tag getter due to left shi Fixed double-conversion (spirit::string -> std::string -> spirit::string). PR#462
Qi
Added static asserts for rule skipper type problems. PR#427
The check_overflow trait default implementation now reoost::integer_traits<T>::is_integral PR#429
Integer parsers should now handle user defined types. PR#429
Note: The check_overflow trait default implementation now relies on std::numeric_limits<T>::is_bounded instead of boosl.
Removed broken 1.0#INF parser. It was poorly documented and never worked. #415 PR#458 #8699
The undocumented make_attribute trait was merged into transform_attribute trait. PR#471
The pre_transform, post_tility functions were removed in favor of directly using pre/post/fail of the transform trait. PR#467
The integer value parser now respects std::numeric_limits<T>::digits10 value. PR#469
Fixed underflow check for a (Min % B Fixed an output value on overflow of IgnoreOverflowDigits=true integer parser. PR#470
Special handling of references in transform_attribute was removed. PR#480
Lex
Fixed UB in default constructor of ken type. PR#420
Classic:
Fixed position_iterator forming reference to local when the underlying iterator dereference operator returns a non-reference type. PR#422 #9737
Stacktrace:
Build fix for iOS 32-bit ARM (many thanksng the fix PR#70)
Fixed multiple typos, warnings and updated the docs.
Test:
Boost.test v3.10 see the Changes log for more details.
Breaking changes:
Boost.Test minimal.hpp is now showing a deprecation warning,
omparison may fail tests that were silently not using the floating point comparison logic prior to this release,
Internal API change to unit_test_log_formatter, see detailed change log,
New feature:
Floating point compariso non-floating point and arithmetic operands: expressions like BOOST_TEST(3.0001 == 3) now use floating point support of Boost.Test,
Custom datasets are not required to declare the sample type field anymore,
Extending template test riadic definition,
Windows support for timed tests,
Timed test on test-suites,
Removed dependency to Boost.Timer,
New macro BOOST_TEST_INFO_SCOPE for scoped context declaration,
Improved BOOST_TE and pull requests:
Trac tickets: #7397, #9434, #13106, #13418
GitHub Issues: #133, #138, #141, #157, #160, #174, #176, #177, #180, #181, #194, #196, #198, #199, #202, #203, #204
GitHub Pull Requests: PR#171, PR#172, PR PR#195, PR#195, PR#197, PR#205
TypeIndex:
Support for the GHS C++ compiler added (many thanks to Brandon Castellano for providing the patch PR#28)
Optimized string and type comparisons (many thanks to Andrey Semashev for providing the-win compilation (many thanks to Peter Dimov for providing the patch PR#25)
CI hardening.
TypeTraits:
Added is_bounded_array and is_unbounded_array (Glen Fernandes).
Added copy_reference and copy_cv_ref (Glen Fernandes).
/clr option.
Misc compiler compatibility fixes.
Variant:
Many cleanups and internal improvements, many thanks to Nikita Kniazev (PR#55, PR#56, PR#57) and Louis Dionne (PR#51)
CI hardening.
uBlas:
Addition of tensorassoy PR#65)
Addition of basic OpenCL support (many thanks to Fady Essam PR#59)
Integration of basic benchmark suite (many thanks to Stefan Seefeld PR#57)
CI integration and hardening
Compilers Tested
Boost's primary test compileang: 3.0, 4.0.1, 6.0.1
Clang, C++0x: 3.0
Clang, C++11: 3.0, 3.1, 3.2, 3.3, 3.4, 4.0.1, 6.0.1, 7.0.0, 8.0.0
Clang, C++14: 3.5.0, 3.6.0, 3.7.1, 3.8.0, 3.9.1, 4.0.0, 4.0.1, 5.0.2, 6.0.1, 7.0.0, 8.0.0
Clang, C++17: 5.0.2, 6.0.17, 4.5.3, 4.6.3, 5.4.0, 8.0.1
GCC, C++0x: 4.4.7
GCC, C++11: 4.7.3, 4.8.5, 4.9.4, 5.4.0, 6.4.0, 7.1.0, 8.0.1
GCC, C++14: 5.4.0, 5.5.0, 6.4.0, 7.1.0, 7.3.0, 8.0.1
GCC, C++17: 7.3.0, 8.0.1
Intel, C++14: 18.0
OS X:
, 9.1.0, 10.0.0
Apple Clang, C++11: 9.0.0, 9.1.0, 10.0.0
Apple Clang, C++14: 9.0.0, 9.1.0, 10.0.0
Apple Clang, C++17: 9.1.0, 10.0.0
Apple Clang, C++1z: 9.0.0
Apple Clang, C++2a: 10.0.0
Windows:
GCC: 3.4.4.0, 4.5.4
GCC, C++0x: 4.6.4
GCC, C++11: 4.7.3, 4.8.1, 4.9.3
GCC, C++14: 5.1.0, 5.2.0, 5.3.0, 6.1.0, 6.2.0, 6.3.0, 6.4.0
GCC, C++17: 7.1.0, 7.2.0, 7.3.0
Visual C++: 7.1, 8.0, 9.0, 10.0, 11.0, 12.0, 14.0, 14.1
Fr
Clang, C++11: 4.0.0
Clang, C++14: 4.0.0
Clang, C++1z: 4.0.0
Boost's additional test compilers include:
Linux:
Clang: 3.0, 3.8.1, 3.9.1, 4.0.1, 5.0.2, 6.0.1
Clang, C++0x: 3.0
Clang, C++11: 3.0, 3.1, 3..0.0, 8.0.0
Clang, C++14: 3.5.0, 3.6.0, 3.7.1, 3.8.0, 3.9.1, 4.0.0, 4.0.1, 5.0.2, 6.0.1, 7.0.0, 8.0.0
Clang, C++17: 5.0.2, 6.0.1, 7.0.0, 8.0.0
GCC: 4.4.7, 4.5.3, 4.6.3, 4.9.4, 5.4.0, 5.5.0, 8.0.1
GCC, C++0x: 4.4.7
G9.4, 5.4.0, 6.4.0, 7.1.0, 8.0.1
GCC, C++14: 5.4.0, 5.5.0, 6.3.0, 6.4.0, 7.1.0, 7.3.0, 8.0.1, 8.1.0
GCC, C++17: 7.3.0, 8.0.1
Intel, C++14: 18.0
OS X:
Apple Clang: 9.0.0, 9.1.0, 10.0.0
Apple Clang, C++11: 9.0.0, 9ang, C++14: 9.0.0, 9.1.0, 10.0.0
Apple Clang, C++17: 9.1.0, 10.0.0
Apple Clang, C++1z: 9.0.0
Apple Clang, C++2a: 10.0.0
Windows:
GCC: 3.4.5, 4.1.2, 4.2.4, 4.3.3, 4.4.0, 4.5.4
GCC, C++0x: 4.6.4
GCC, C++11 GCC, C++14: 5.1.0, 5.2.0, 5.3.0, 6.1.0, 6.2.0, 6.3.0, 6.4.0
GCC, C++17: 7.1.0, 7.2.0, 7.3.0
Visual C++: 7.1, 8.0, 9.0, 10.0, 11.0, 12.0, 14.0, 14.1
FreeBSD:
Clang: 4.0.0
Clang, C++11: 4.0.0
Clang, C++14: 4.0.0
boost: HOMEPAGE is a permanent redirect to https
boost: updated to 1.69.0 New Libraries Safe Numerics: A library for guaranteed correct integer arithmetic for C++14 and later, from Robert Ramey. Updated Libraries Any: Fixed issue with visibility. Now boost::any variables constructed in one shared library with hidden visibility could be used and destroyed in other shared library with hidden visibility. Maintenance: dropped some dependencies on other Boost libraries, fixes for docs. Asio: Fixed a problem with the detection of std::future availability with libstdc++. Fixed compile error in regex overload of read_until. Fixed a timer heap corruption issue that can occur when moving a cancelled timer. Fixed detection of std::experimental::string_view and std::string_view with newer clang/libc++. Fixed MSVC version detection for availability of std::invoke_result. Fixed the buffer sequence traits to test the new requirements, if decltype is available. Fixed an MSVC issue when building with exceptions disabled. Added SSL context options for TLS v1.3. Added a compile-time test for TLS v1 support. Fixed the macro used to test for TLS v1.2 support. Prevented global objects from being created once per thread on Windows. Fixed a crash when using size(), max_size() or empty() on default-constructed resolver results. Changed to move the return value in basic_resolver_results::begin() to avoid copying. Enabled move support for the Intel Compiler. Fixed std::string_view detection issue when using clang-cl. Fixed the handler tracking operation name for io_context::executor_type::dispatch. Fixed a buffer overflow that could occur when parsing an address string with a 64-bit scope id. Added examples showing how to write composed operations. Added C++11 versions of the Timeouts, Timers, SOCKS4 and SSL examples. Fixed minor issues in documentation and examples. Assign: Add rvalue reference, perfect forwarding, and variadic template support Avoid conversion to container's allocator Beast: This version fixes some issues in the examples, and provides a new experimental socket which supports built-in timeouts on asynchronous operations. New CppCon 2018 websocket chat example and presentation video. For a complete list of changes, please view the official Release Notes. CircularBuffer: Use the empty base optimization for storing allocators that are empty and not final (Glen Fernandes). Concept Check: Removed dependency on mpl. Context: duplicate alias should be missing GCC alias the clang-win toolset (clang-cl.exe) uses masm from the underlying msvc remove useless lines in Jamfile.v2 add .file section for *_elf_gas.S files Core: Implemented boost::empty_value, for library authors to conveniently leverage the Empty Base Optimization to store objects of potentially empty types (Glen Fernandes). This facility is now used in Boost.Beast, Boost.CircularBuffer, Boost.MultiArray, and more. Implemented boost::quick_exit to provide the C++11 standard library facility std::quick_exit functionality (Peter Dimov). Reduced the number of statics in Lightweight Test, and employ lighter abort behavior for MSVC compilers upon failure to call boost::report_errors (Glen Fernandes). DLL: Resolved link issues with the smart library Maintenance: fixes for docs and tests. Dynamic Bitset: Performance improvements (over 2x in some cases). Added range-based set, reset, flip methods Fiber: unbuffered_channel push not return Remove UTF-8 BOM at begining of the file Fix boost-install use; should only be issued once Filesystem: Don't use readdir_r on Linux and Android since the readdir function is already thread-safe. Fixed crashes in boost::filesystem::copy due to undefined behavior in the implementation. Fixed undefined behavior in boost::filesystem::directory_iterator implementation. Fixed compilation errors when using directory iterators with BOOST_FOREACH. Removed workarounds for older PGI C++ compiler versions to fix compilation on the newer ones. Fixed MSVC warnings about narrowing conversions. Flyweight: Fixed some issues in GCC related to Boost.MPL placeholder expression handling. Maintenance fixes. Function: Removed dependencies on mpl, test Geometry: Karney's solution of direct geodesic problem for internal use Discrete Frechet and Hausdorff distance algorithms New run-time and upgraded compile-time SRS transformation interfaces (undocumented for now due to potential interface changes). Integer: boost/pending/integer_log2.hpp header is deprecated and will be removed in future releases. Use boost/integer/integer_log2.hpp instead. Iostreams: Remove call to nonexistent member seekpos() of std::fpos Iterator: Fixed compilation problems with ambiguous unqualified calls to advance and distance on iterators whose types involve types in the namespace boost. LexicalCast: Fixed sign-conversion warnings Maintenance: dropped some dependencies on other Boost libraries, fixed build system warnings. Log: General changes: Updated syslog sink backend to avoid using deprecated Boost.ASIO interfaces. Bug fixes: Fixed a possible incorrect estimation of the total size of rotated files in the target directory of a text file sink in some cases. See changelog for more details. Logic: Breaking change: Use explicit operator bool when available Math: Add LambertW functions. Update integration routines to support complex valued integrands and contour integrals. Added the derivative of the Barycentric rational approximation. Minor fixes to better support variable precision floating point types. Removed use of deprecated Boost.Endian in favour of Predef. Updated continued fraction and series evaluation code to support complex types. Prevent logic error leading to infinite loop in toms748_solve. Fix mean and standard_deviation for extreme_value_distribution. Improve heuristics used in newton_raphson_iterate. Fix result of erf(NaN). Big push to reduce GCC warnings. Refactor polynomial addition. Fix for vxWorks having a real function in the global namespace. Improve sinc approximations and add better tests. Fix typo in Student's T hypothesis testing documentation, Mp11: Implemented the mp_starts_with facility (Glen Fernandes). MultiArray: Improve C++11 allocator model support including: Support for C++11 minimal allocators, support for stateful allocators, using the allocator for construction and destruction of the value type, and using the empty base optimization for storing empty or stateless allocators (Glen Fernandes). Multi-index Containers: Introduced an alternative terse key specification syntax for C++17 compliant environments. Multiprecision: Big update to better support variable precision types so that the precision of the result is always the largest of all the arguments. Add support for allocators that are final in __cpp_int (Glen Fernandes). Removed use of deprecated Boost.Endian in favour of Predef. Add support for std::string_view. Fixed minor bug in constant initialization. Make assignment of non-finite value to cpp_int a runtime errors. Added typedefs for cpp_bin_float_oct and cpp_complex_oct. PolyCollection: Added Bost.PolyCollection-specific versions of algorithms std::for_each_n and std::sample. Pool: Replace boost::mutex use to avoid a dependency on Boost.Thread Preprocessor: Supports the new C++ standard conforming preprocessor in VC++ 14.1, which is currently enabled by using the /experimental:preprocessor switch, in Visual Studio 2017 15.8 on up. Rational: Add constexpr support Spirit.X3: Drop own FP routines in favor of boost::math Missing visibility mark on exception types to_utf8: Fixed wchar_t handling on Windows Spirit V2 Drop own FP routines in favor of boost::math Missing visibility mark on exception types Fixed transform_attribute ambiguity to_utf8: Fixed wchar_t handling on Windows Spirit.Classic: Missing visibility mark on exception types Stacktrace: libbacktrace usage was significantly improved. BOOST_STACKTRACE_USE_BACKTRACE or boost_stacktrace_backtrace users are encouraged to update: Memory consumprion dropped down. Stack capturing became faster by an order of magnitude. syminfo fallback enabled to provide information for visible symbols even without debug information Exact location of the backtrace.h header now can be specified via BOOST_STACKTRACE_BACKTRACE_INCLUDE_FILE, to allow backtrace.h header usage on platforms and compilers where that header is unreachable otherwise (for example Ubuntu Xenial + Clang) Optimized stack capturing if max_depth is set Added to_string(const stacktrace& ) functions for fast conversion of stacktraces to std::string System: Boost.System is now header-only. A stub library is still built for compatibility, but linking to it is no longer necessary. Even more functions have been marked constexpr. The destructor of error_category is now protected and no longer virtual. This is a potentially breaking change, but its impact is expected to be limited. error_category now has a constructor that accepts a 64 bit identifier, enabling distinct category objects to compare equal. The constructors of error_category are now protected. A non-allocating, nonthrowing overload of message has been added. A virtual function failed has been added, allowing categories for which success is not synonymous with 0. The deprecated boost::system::throws object has been removed. boost::throws() is now deprecated and its use is discouraged. The constructor of system_error taking a single error_code argument is now explicit. system_error::code() now returns by value. Test: Boost.test v3.9 see the Changes log for more details. New feature: Official support of header-only variant of Boost.Test with multiple translation units. Now possible to manually add a test case by specifying its name, with BOOST_TEST_CASE_NAME Better support of boost::exception in the logs TypeIndex: Fix the regression and speed up parsing of the boost/type_traits.hpp header by 30% Utility: Added support for non-inheritable empty types to boost::compressed_pair by avoiding the empty base optimization for types which are declared as final (Glen Fernandes). Variant: Fixed issue with visibility. Now boost::bad_visit exception could cross the boundaries of shared library with hidden visibility and could be catched in other shared library with hidden visibility. YAP: Minor changes to support MSVC++ version 14.15 (Visual Studio 2017 version 15.8). Doc fixes.
boost-headers: do not generate user.hpp during configure. Use the pregenerated file instead. The configure step is only intended to be used as a base when porting to new platforms, and as-is it didn't use the same flags that were used in other places. See https://github.com/boostorg/config/issues/240 for more details. Bump PKGREVISION.
boost: The tarball contains files with spaces, use -print0.
boost: Use XARGS instead of -exec of FIND to properly address PR pkg/53543 This should properly fix PR pkg/53543 (also remove the big `XXX' comment, this is a proper solution to the problem). Thanks to <joerg> for suggesting that!
boost: Revert -r1.74 in order to avoid PR pkg/53543
At least devel/boost-libs can fail due an `Argument list too long' due the use
of `+' in ${FIND}. Revert -r1.74 in order to use `\;' instead (and add a big XXX
comment regarding that).
boost: updated to 1.68.0 1.68.0: New Libraries YAP: An expression template library for C++14 and later, from Zach Laine. Updated Libraries Beast: This version fixes a missing executor work guard in all composed operations used in the implementation. Users who are experiencing crashes related to asynchronous completion handlers are encouraged to upgrade. For a complete list of changes, please view the official Release Notes. Context: 78: Linker error with context-impl=ucontext: multiple definition of boost::context::detail::current_rec Coroutine2: 14: crash while stack unwinding 18: some guidance on why to use coroutine2 20: failes to compile test in due to the error C2039 22: undefined behaviour documentation Fiber: 170: buffered_channel::try_push has incorrect documentation 172: WIN64: 'invalid conversion from 'HANDLE' to 'std::thread::native_handle_type' errors for builds using mingw-w64 175: throw exception "Operation not permitted" NUMA support moved to extra library (fiber-numa); enabled via property numa (numa=on) Fusion: Added a workaround for ambiguous call of fusion::deque constructor on GCC 4.4/c++0x Fixed a bug with C-style array Fixed a fusion::for_each signature to take functor by value This may break existing code with non-copyable (non-movable) functor, but the implementation wasn't correct for a long time; the documantation was correct from the first. So, please make sure your usage. Fixed unintentional MPL placeholder substituion bug on fusion::transform. Moved description, how to conform Fusion sequence as MPL sequence, to mpl section. Added notes regarding IO facility for adapted type. Geometry: Improvements 469 Horizontal grid shift (nadgrids) in SRS transformations (undocumented for now due to potential interface changes). 478 Box-Segment distance for spherical and geographic coordinate systems. 487 Missing combinations of geometries in distance for spherical and geographic cs 489 Additional direct geodesic problem formulas for internal use Solved issues 470 Assertion failure with short spherical and geographic segments. 471 Invalid envelope of spherical polygon 498 Unexpected results with expand() and make_inverse() for spherical and geographic CS Bugfixes 488 Handle non-true-references in closing_iterator and ever_circling_range_iterator 495 VxWorks 7 cross-compilation issue. GIL: The I/O extensions have been entirely rewritten. The library now requires a C++11-compliant compiler. Documentation has been reformatted and updated. Graph: Conditionally replace deprecated/removed C++98 std::bind1st by std::bind, std::auto_ptr by std::unique_ptr, and std::random_shuffle by std::shuffle. Fix compiler error with release builds on VS2015 Fix the Stanford GraphBase examples Fix friend declarations for iterator_core_access Add missing <boost/iterator.hpp> include Avoid an unused variable warning Fix some typos in documentation Fix some issues in tests and examples Lexical Cast: Fixes for clang-tidy warnings 12092 Log: Improved support for VxWorks. Save and restore ebx register on x86 PIE targets in the dump stream manipulator implementation. Math: Support for arbitrary precision complex valued quadrature and hence contour integration Improve performance of polynomial addition Math: Continue to improve numerical integration routines, and in particular add support for contour integrals. Improve accuracy of erfc function's rational approximations. Multi-index Containers: Containers of moveable but non-copyable elements can now be serialized (ticket 13478). Thanks to Sébastien Paris for the report. multi_index_container's default constructor is no longer explicit (ticket 13518). Multiprecision: Support for multiprecision complex numbers Multiprecision: Support added for complex multiprecision numbers. Changed conversion to unsigned integer types to be truncating to match standard defined behaviour. Correct bug in MPFR string formatting. Fix undefined behaviour in cpp_dec_float conversion from long long. Add support for Eigen interoperability. float128.hpp: Fix Intel on Windows build. Fix type used in temporaries when expanding expression templates containing mixed expressions. Fix infinite loop in gmp_float to fixed-point string conversion. Update the expression templates to issue static_asserts with better error messages when you try and do something unsupported. Fix bug in cpp_int where incrementing to zero doesn't set the sign correctly. Remove erroneous use of std::move, and rely on NVRO instead. Fix up support for changes to MPIR-3.0. Fix various conversion errors in cpp_bin_float when the exponent type is a long long, or else we're converting to an integer that is wider than we are. Fix compatibility issue with GCC-8 caused by the introduction of std::byte. Optional: Added member function has_value() for compatibility with std::optional (issue 52). Added member function map() for transforming optional<T> into optional<U> using a function of type T -> U. Added member function flat_map() for transforming optional<T> into optional<U> using a function of type T -> optonal<U>. Predef: Add support for __ARM_ARCH macro. Add detection for PTX architecture. Add nvcc compiler detection. Add support for detecting CUDA. Remove reference to obsolete BOOST_ARCH_AMD64. Program Options: Support for multiple long names for an option, thanks to Eyal Rozenberg Python: Bug fixes to correct autolink support (Windows) Rational: Fixed undefined behavior in normalize() System: Add constexpr to error_code and error_condition members under C++14 and above Signals: Removal Notice: Boost.Signals will be removed in the next release. Boost.Signals was deprecated in version 1.54.0. Transition to Boost.Signals2 now to avoid disruption. Stacktrace: Fixed compilation on Solaris and other platforms that do qualify address as const in dladdr function (github 54). Dropped dependency on Boost.LexicalCast. Test: Boost.test v3.8 see the Changes log for more details. Breaking changes The master_test_suite_t object is no more copyable New feature: Dataset test case can now use command line parameters TypeIndex: Dropped dependency on Boost.MPL. Uuid: Breaking change: sha1 detail namespace header redirection for backwards compatibility was removed Added support for std::hash Added support for move semantics on random generators Properly handle EINTR when acquiring entropy Use getrandom(2) instead of getentropy(3) on linux
boost: faster "find"
Fix devel/boost-libs build on NetBSD Bump PKGREVISION of devel/boost-headers
boost: updated to 1.67.0 Version 1.67.0: New Libraries: - Contract: Contract programming for C++. - HOF: Higher-order functions for C++. Updated Libraries: - Asio: Added missing const qualifier to basic_socket_acceptor::get_option. Worked around a parsing error that occurs with some versions of gcc. Fixed broken code samples in tutorial. Added new experimental features. (Note that "experimental" features may be changed without notice in subsequent releases.) Added experimental::detached completion token. Added experimental::redirect_error completion token. Added experimental::co_spawn facility for integration with the coroutines technical specification. Updated timeout examples to use latest features. Used asio::steady_timer rather than asio::deadline_timer. Used asio::dynamic_buffer rather than asio::streambuf. Used timed asio::io_context::run_for() function for blocking clients. Added example showing a custom completion token for blocking with timeouts. Fixed unit tests to compile when BOOST_ASIO_NO_DEPRECATED is defined. Changed socket iostreams to use chrono by default, to fix compatibility with the Networking TS. Define BOOST_ASIO_USE_BOOST_DATE_TIME_FOR_SOCKET_IOSTREAM to enable the old Boost.Date_Time interface in basic_socket_streambuf and basic_socket_iostream. Updated examples to use chrono rather than Boost.Date_Time. Fixed an incorrect member function detector in the is_dynamic_buffer trait. Fixed an async_result incompatibility with deprecated handler_type. Added a missing move optimisation in the SSL stream implementation. Fixed incorrect basic_resolver_results::value_type typedef. Fixed a compile error with some OpenSSL versions when SSL_OP_NO_COMPRESSION is defined. Changed add_certificate_authority to process multiple certificates in a bundle. Eliminated deprecation warning with MSVC by using std::invoke_result rather than std::result_of. Changed to use std::string_view for C++17 or later, and std::experimental::string_view for C++14. Define the preprocessor macro BOOST_ASIO_DISABLE_STD_STRING_VIEW to force the use of std::experimental::string_view (assuming it is available) when compiling in C++17 mode. Ensured DynamicBuffer template arguments are decayed before using in enable_if tests. Changed documentation to distinguish legacy completion handlers (which are still required to be CopyConstructible) from new MoveConstructible handlers. Suppressed a discarded return value warning in the buffer debugging support. Fixed basic_yield_context to work with completion signatures containing reference parameters. Ensured that stackful coroutines launched using spawn() correctly store decayed copies of their function and handler arguments. Fixed some compatibility issues with Android. Added cross-compilation support to Jamfiles. Fixed some minor portability issues in examples. - Atomic: Breaking change: Changed the result of the (op)_and_test operations added in Boost 1.66 to the opposite - the functions now return true if the operation result is non-zero. This is consistent with other test methods in Boost.Atomic and the C++ standard library. Users can define BOOST_ATOMIC_DETAIL_HIGHLIGHT_OP_AND_TEST when compiling their code to emit warnings on every use of the changed functions. This way users can locate the code that needs to be updated. Update for C++2a. On C++11 compilers that support scoped enums, the memory_order enumeration is now scoped and contains constants with shorter names like acquire, release or seq_cst (i.e. users can use memory_order::acquire instead of memory_order_acquire). The old constants are also provided for backward compatibility. (P0439R0) Update for C++2a. Added experimental support for atomic operations on floating point types. In addition to general operations, add, sub, negate operations and their fetch_(op) and opaque_(op) versions are supported. Lock-free property can be tested with the new macros BOOST_ATOMIC_FLOAT/DOUBLE/LONG_DOUBLE_LOCK_FREE. The support for floating point types is optional and can be disabled by defining BOOST_ATOMIC_NO_FLOATING_POINT. (P0020R6) Added new experimental operations: negate_and_test and complement_and_test which perform negation or bitwise complement and return true if the result is not zero. add, sub, negate, bitwise_and, bitwise_or, bitwise_xor, bitwise_complement operations which perform the operation and return its result. For generic atomic<T> specialization, the default constructor is now trivial if T's default constructor is. The internal implementation of atomic<T> has been updated to avoid undefined behavior that stems from signed integer overflows. As required by the C++ standard, the library uses two's complement representation of signed integers internally and accroding rules of overflow. Currently, the library requires the native signed integer types to also use two's complement representation (but no defined overflow semantics). Improved Clang support. In particular, fixed DCAS not being lock-free and fixed possible incorrect code generated on 32-bit x86. Improved MinGW support. For gcc versions up to 4.6, fixed compilation of DCAS on x86. In x86 PIE code, asm blocks now preserve ebx value. - Beast: This version fixes significant defects in websocket::stream which can lead to asserts or undefined behavior. Users are encouraged to update to the latest Boost release. For a complete list of changes, please view the official Release Notes. - ContainerHash: Extracted from the functional module to break a dependency cycle. Moved headers to new location to reflect name change, the old include paths will still work. Added support for std::string_view, std::error_code, std::error_condition, std::optional, std::variant, std::monostate where available. Added explicit support for vector<bool>, so that it will work with libc++. More detail in the library change log. - Context: fix i386/macho routines to correctly return transfer_t in EAX/EDX __sanitizer_finish_switch_fiber should be called directly after context switch Clang on Windows : error: No best alternative for libs/context/build/asm_sources fixing C2492 for execution_context (v1) known bug: including all.hpp + <context-impl>ucontext/winfib causes error 'forced_unwind: is not a member of boost::context::detail' More info https://www.boost.org/users/history/version_1_67_0.html
boost: updated to 1.66.0 1.66.0: New Libraries Beast: Portable HTTP, WebSocket, and network operations using only C++11 and Boost.Asio, from Vinnie Falco. CallableTraits: A spiritual successor to Boost.FunctionTypes, Boost.CallableTraits is a header-only C++11 library for the compile-time inspection and manipulation of all 'callable' types. Additional support for C++17 features, from Barrett Adair. Mp11: A C++11 metaprogramming library, from Peter Dimov.
boost: update to 1.65.1 Fixes in 1.65.1 Config: * Version macro changes for CUDA. * Update last known MSVC version. * MSVC 14.11 supports structured bindings. Context: * Return a continuation from functions executed by resume_with. Fiber: * Return a continuation from functions executed by resume_with. Smart Pointers: * Fix Visual C++ version checks. * Fix compilation for NVCC with host compiler clang. Stacktrace: * Update build testing file to detail with a MinGW issue. * Change preprocessor file extensions to work with the installation system. * Support FreeBSD and other OSs that do not define _GNU_SOURCE but have _Unwind_Backtrace function. Thread: * Fix bug in boost::condition_variable on Windows
Add a note to update mysql57-client/patches/patch-cmake_boost.cmake when bumping version
Version 1.65.0 New Libraries: PolyCollection, Stacktrace. Updated Libraries: Asio, Context, Config, Core, Coroutine2, DLL, Fiber, Fusion, Geometry, Hash, Log, Phoenix, Predef, Program Options, Python, Smart Pointers, Test, TypeIndex, Unordered, Utility, Variant.
Extend SunOS _XOPEN_SOURCE fix to all compilers.
Changes 1.64.0: New Libraries Process library by Klemens D. Morgenstern, that provides cross platorm ways to allows you to: * create child processes * setup streams for child processes * communicate with child processes through streams (synchronously or asynchronously) * wait for processes to exit (synchronously or asynchronously) * terminate processes
Bump DIST_SUBDIR to v3: Use checksums of manually (firefox) downloaded distfile. This is the same as before my previous commit, but into a versioned subdirectory. Automatic fetch from sourceforge will probably fail (I get three different checksums for different tries), but I've also uploaded this to ftp.NetBSD.org, so the failover fetches will work, eventually. (Keep MASTER_SITES for updates.)
Set DIST_SUBDIR and add checksum as of right now. This is getting annoying, three releases of the same file?
Changes 1.63.0:
Atomic:
* Added the static constant atomic<T>::is_always_lock_free for conformance with C++17. The constant indicates that the given specialization always provides lock-free implementation of atomic operations.
* Improved support of Oracle Studio on x86 targets.
Container:
* Fixed bugs
Context:
* 11687 Xcode (Apple clang) and thread_local
* 12114 context does not preserve fpu context on ios arm64 devices (fixed for other architecturs too)
* 12411 fpu registers not preserved with O2 optimizations in Visual Studio (fixed for other architecturs too)
* 12551 building boost on arm64 causes error: unknown directive
* reduced signatur for ontop-functions
* unit-test for private fcontext-API
* performance-test for ucontext and fcontext fixed
Fiber:
* unbounded_channel and bounded_channel marked as deprecated
* new classes buffered_channel and unbuffered_channel
* performance improved
Fusion:
* Fixed fusion::vector buggy constructors (Thanks to Lee Clagett).
* BOOST_FUSION_ADAPT* and BOOST_FUSION_DEFINE* now allow empty structures. (6592)
* BOOST_FUSION_DEFINE* allows move constructor and assignment. (10099)
* Adaptor for std::array (Thanks to Mateusz Łoskot). (8241)
* Fixed returning temporary variable warnings on MSVC.
Geometry:
* Intersection: take care that output is valid (work in progres, not yet finished - but more is valid)
* 12289 Avoid warning/compilation error for std::cout
* 12412 Invalid result of covered_by() with geographic Points and Boxes
* 12413 rtree::remove() not working properly with geographic Points
Hash:
* Fixed some warnings.
Interprocess:
* Fixed bugs
Intrusive:
* Fixed bugs
Lexical Cast:
* Fixed issue found by -fsanitize=undefined 21
Log:
* Removed the previously deprecated type_info_wrapper.
* Added a way to access the current file name from the text file sink backend. The file name can be obtained with the get_current_file_name method.
* Bug fixes
Metaparse:
* Improved the implementation of BOOST_METAPARSE_STRING
Move:
* Improved experimental adaptive sort algorithm performance
* Activate BOOST_MOVE_FORCEINLINE
Optional:
* Added two new in-place constructors. They work similarly to emplace() functions: they initialize the contained value by perfect-forwarding the obtained arguments. One constructor always initializes the contained value, the other based on a boolean condition.
* Syntax o = {} now correctly un-initializes an optional, just like in std::optional.
* Fixed optional<optional<T>&> initialization. (12203)
* Optional constructors are sfinae-friendly. This fixes interaction with std::tuple. (12563)
Phoenix:
* Most of modules now support C++11 variadic templates.
* Fixed type deduction failure with result type.
* Suppress unused warnings.
* Fixed too few arguments error on binary math functions.
* Added workarounds for older compiler.
Python:
* Added (basic) support for C++11 (std::shared_ptr, std::unique_ptr)
* Incorporated an extension API to wrap NumPy
* Removed obsolete bits and pieces
Test:
* Boost.test v3.4 see the Change log section for more details.
* New feature: per_element and lexicographic modifiers of BOOST_TEST can also be applied to string comparison
* Breaking change: colons that appear in test case names are replaced with underscores
* Bug fixes
TypeIndex:
* Added runtime_cast to the library as an emulation of dynamic_cast. Thanks to Chris Glover for the implementation. See runtime_cast reference for more info.
* Internals of the CTTI were made more platform independant, due to change of the std::size_t type to unsigned int.
Units:
* Fix inspection warnings
* updated physico-chemical constants to CODATA 2014 values
* define biot correctly as 10 Ampere
Unordered:
* Fix an exception safety issue in assignment.
* Use std::allocator_traits where available, and support modern style rebind (12459).
* Add some allocator aware constructors.
* Use the hint iterator in emplace_hint.
* Fixed some warnings.
add note about syncing GCC versions with devel/boost-libs bl3 file
Manually pin-point the release version of the 1.62.0 distfile. Regenerate distinfo.
Unfortunately the distfile has changed - with docs rebuilt - so we must change as well
Changes 1.62.0:
New Libraries
-------------
Fiber:
* Framework for userland-threads/fibers, from Oliver Kowalke.
QVM:
* Boost QVM is a generic library for working with quaternions, vectors and matrices of static size with the emphasis on 2, 3 and 4-dimensional operations needed in graphics, video games and simulation applications, from Emil Dotchevski.
Updated Libraries
-----------------
Atomic:
* Improved support for Oracle Studio and SPARC. The library now provides native atomic operations on SPARCv8+.
Chrono:
* 11330 boost::chrono::duration default constructor doesn't initialize rep_
* 11618 Chrono IO V2 doc ios_state.hpp does not exist
* 11631 boost chrono io v2 does not let you support custom clocks
Circular Buffer:
* Debug implementation is no longer used by default in debug mode. Debug implementation does not have the same thread safety guarantees as the normal (release) implementation or other containers. As a result of this change BOOST_CB_DISABLE_DEBUG macro is no longer used. BOOST_CB_ENABLE_DEBUG=1 should be defined instead to enable debug support.
Container:
* Fixed bugs:
Trac 9481: "Minor comment typo in Boost.Container".
Trac 9689: "Add piecewise_construct to boost::container".
Trac 11170: "Doc slip for index_of".
Trac 11802: "Incorrect ordering after using insert() with ordered_range_t on a flat_multiset with a non-default sort order".
Trac 12117: "flat_set constructor with ordered_unique_range".
Trac 12177: "vector::priv_merge uses unqualified uintptr_t".
Trac 12183: "GCC 6.1 thinks boost::container::string violates strict aliasing".
Trac 12256: "set<std::pair<int,int>>::insert cause compilation error in debug configuration in Visual Studio 2012".
Trac 12273: "static_vector max_size() and capacity() should be constant expressions". Added constant static_vector<>::static_capacity to use the configured capacity in constant expressions.
Trac 12286: "PMR flat_map from Boost Container does not compile".
Trac 12296: "{deque,string} combine for a memory leak".
Trac 12319: "flat_set should be nothrow move constructible".
* Revised noexcept expressions of default and move constructors in all containers.
* Implemented C++17 insert_or_assign/try_emplace for map and flat_map.
* Implemented C++17 extract/insert(node) for map, multimap, set, multiset.
Context:
* 12215 all stack corrupted on Windows using default fixedsize_stack
* 12242 build issue with Intel C++ compiler for MacOS
* fix stack unwinding for execution_context_v1
Coroutine:
* deprecated in favour of Coroutine2
Coroutine2:
* 12221 coroutine<>::push_type function starts without pushing
* do not swallow exceptions thrown at coroutine<>::push_type construction
DLL:
* Mangled symbols and classes loading was implemented by Klemens Morgenstern
* Suppress a 'unused parameter' warning in detail::aggressive_ptr_cast pull-request 9
* Allowed to query non-existant sections pull-request 32
* More tests and docs
Functional/Forward:
* Fix C++11 compile error.
Interprocess:
* Fixed bug GitHub Pull 27 ("Fix undefined behavior").
Intrusive:
* Fixed bugs:
Boost Trac 11476: has_member_function_callable_with.hpp is massively broken with BOOST_NO_CXX11_DECLTYPE
Boost Trac 11994: Support intrusive container key extractors that return the key by value
Boost Trac 12184: clang -Wdocumentation warning
Boost Trac 12190: Intrusive List + Flat Map combination crashes
Boost Trac 12229: intrusive::unordered_set<T>::rehash() broken
Boost Trac 12245: bstree uses a shared static size_traits for constant_time_size<false>
Lexical Cast:
* Fix incorrect static assertion 11759
Log:
* New features:
Added new tools for inter-process logging on a local machine. The implementation includes a resource name wrapper, an inter-process message queue and a sink backend.
Added a new character decorator called max_size_decor. The new decorator allows to limit the output of its adopted formatter up to the specified length.
* Bug fixes:
Fixed that logging streams could retain formatting settings across different log records. (12178)
See changelog for more details.
Math:
* New Features:
Enabled all the special function code to work correctly with types whose precision can change at runtime: for example type mpfr_float from Boost.Multiprecision.
* Patches:
Fix tgamma_delta_ratio for cases where the delta is small compared to the base.
Fix misc GCC-4.4 test failures.
Optional:
* Fixed Trac 12179.
Phoenix:
* Fix compilation for MSVC 10. pull-request 18
* Remove unused preprocessed files. pull-request 28
* Fix erroneous doc for switch_ statement. 8156
* Cleanup config unordered. pull-request 33
* Suppress unused placeholder warnings.
* Fix too few arguments error on binary math functions.
Regex:
* Fix buffer over-run error when parsing certain invalid regexes, see 12222.
* Fix detection of ICU in library build, see 12152.
* Fix bug in case sensitivity change, see 11940.
* Allow types wider than int in \x{} expressions (for char32_t etc), see 11988.
Test:
* Boost.test v3.3 see the Change log section for more details.
* New features
dataset driven test-cases have now a unique name and all sample tests of a dataset live inside the same test suite
Boost.test learned a new command line switch, --logger for setting a test logger as well as its parameter in one command
Boost.test learned to have several loggers at the same time, each of which having their own log level and output stream
Boost.test learned a new logger, JUNIT, that is able to output Junit/xUnit compatible streams
It is now possible to specify several test filters through the environment variable BOOST_TEST_RUN_FILTERS
* Bug fixes
Trac tickets 8707, 8834, 11128, 11845, 11859, 12024,
Trac tickets 12093, 12103, 12224, 12241, 12257, 12378
Thread:
* 12102 condition_variable_fwd.hpp fails to compile when BOOST_THREAD_PROVIDES_INTERRUPTIONS is disabled
* 12120 Performance improvement in thread/barrier.hpp
* 12146 make_exceptional_future is not mentioned in the docs
* 12202 shared_lock should be in shared_mutex header
* 12371 boost thread/future.hpp fails to build
* 88 fix typos in boost::upgrade_lock
* 89 fix a bug in upgrade_to_unique_lock<>::operator=()
* 90 fix a bug in try_lock_wrapper<>::operator=()
* 91 Add shared_lock_guard to the included lock types
* 92 Fixed compilation with MSVC-8.
* 93 Fix variable shadowing warnings (Clang)
* 94 fix bugs in boost::barrier
* 95 fix a mistake in boost::completion_latch
* 96 rename async_func.hpp to invoker.hpp.
* 97 fix a mistake in sync_timed_queue<>::pull_until()
TypeIndex:
* ctti_type_index was made constexpr in C++14. Now it is possible to retrieve actual name of the type as const char* at compile time. So we can do a lot of interesting things at compile time: check namespace of a type, sort types according to their lexical representation, check that type is a template type and so on... A few examples were provided.
* Fixed issue with noexcept on MSVC in type names and issue with space in type name (pulled from klemens-morgenstern/develop)
* Fixed typos pull-request 7
* Improved CI testing
Unordered:
* Remove use of deprecated boost::iterator.
* Fixed an exception safety issue in assignment of unordered_multiset and unordered_multimap.
* See the changelog for more details.
Variant:
* Fixed variant construction from classes derived from variant 7120, 10278, 12155
* Variant constructors and assignment operators now do not participate in overload resolutions if variant can not hold the input type 5871, 11602
* Fixed the issue with implicit conversion operator in C++11 8555
* Fixed comparisons when variant holds non-const reference 11751
* Fixed noexcept for variant's move-assignment 11696
* Fixed double quotes in includes 12057
* Dropped BOOST_VARIANT_NO_REFERENCE_SUPPORT macro and dropped support for compilers without SFINAE 12250
* Suppress implicit instantiation of MPL end iterator
* Multiple minor fixes (typos, missing includes)
Changes 1.61.0: New Libraries: -------------- Compute: Parallel/GPU-computing library DLL: Library for comfortable work with DLL and DSO. Library provides a portable across platforms way to: * load libraries * import any native functions and variables * make alias names for C++ mangled functions and symbols * query libraries for sections and exported symbols * self loading and self querying * getting program and module location by exported symbol Hana: A modern C++ metaprogramming library. It provides high level algorithms to manipulate heterogeneous sequences, allows writing type-level computations with a natural syntax, provides tools to introspect user-defined types and much more. Metaparse: A library for generating compile time parsers parsing embedded DSL code as part of the C++ compilation process. The library is similar to Spirit, however while parsers built with Spirit parse at run-time, parsers built with Metaparse parse at compile-time.
The GCC 4.4 compiler provided by RedHat is patched and sufficient to build boost, from Jason Bacon.
Changes 1.60.0: New Libraries VMD: Variadic Macro Data library, from Edward Diener. Updated Libraries Atomic: * Enforced proper alignment of atomic<> storage. This should fix possible issues on platforms that support atomic operations on data units larger than the native word size. This may also change binary layout of user's data structures that have atomic<> members. * Fixed compilation for PowerPC with IBM XL C++ compiler. Corrected memory barriers in PowerPC assembler. * Fixed compilation with MSVC-8 for ARM. * Fixed compilation with gcc 4.4 for x86-64, when 128-bit atomic operations were used. (10994) * Optimized some gcc assembler blocks for x86/x86-64 to reduce the number of used registers. This may require binutils 2.10 or later. Chrono - 2.0.5: Fixes: * 10778 VC14 CTP4 Atomic don't compile with boost::chrono durations which are not TriviallyCopyable * 10840 Missing std:: qualifier for puts call in test_7868.cpp * 10851 Missing std:: qualifier for puts call in time_point_output.cpp * 10893 Minor doc typo in Boost.Chrono * 10992 Chrono IO state savers inconsistent with Boost.IO state savers * 10995 duration_put::put_value truncates fractional part * 11006 Impossible to instantiate time_fmt_io_saver due to several errors. * 11012 chrono_io v2 fail to compile with boost::chrono::duration< boost::rational<int> > Container: * Implemented Polymorphic Memory Resources. * Add more BOOST_ASSERT checks to test preconditions in some operations (like pop_back, pop_front, back, front, etc.) * Added C++11 back/front operations to basic_string. Fixed bugs: * Trac 11627: "small_vector<T,n>::swap() appears to be broken". * Trac 11628: "small_vector<int,n> iterates over elements in destructor". * Trac 11697: "Wrong initialization order in tuple copy-constructor". * Trac 11698: "Missing return statement in static_storage_allocator". * GitHub 29: Doc fixes for flap_map complexity requirements. * GitHub 31: DL_SIZE_IMPL also dereference addr. Context: * 11603 typo in PPC32/MACH-O asm * support for CYGWIN Core: * In symbol demangling tools, added support for gabi++ ABI implementation used in Android NDK. * Added a new enable_if_has_type tool for performing SFINAE checks for presence of a nested type. more...
This time, Darwin needs a little more magic
Changes 1.59.0: New Libraries Convert: An extendible and configurable type-conversion framework, from Vladimir Batov. Coroutine2: (C++14) Coroutine library, from Oliver Kowalke. Updated Libraries...
Rename boost-python to py-boost and make it a proper multi-version package.
Now that WRAPPER_BINDIR points to the selected wrapper implementation, remove the duplicate CWRAPPERS_BIN_DIR handling.
Changes 1.58.0: * New Libraries: - Endian: Types and conversion functions for correct byte ordering and more regardless of processor endianness. - Sort: Includes spreadsort, a general-case hybrid radix sort that is faster than O(n*log(n)) * Updated Libraries:
Enforce using the native libtool on Darwin for the cwrappers case too.
The "rename" rule is a published synonym for the "opt" transform rule, however only the latter is supported by cwrappers. Change them all to "opt" rules for consistency and to gain compatibility with cwrappers.
Not setting GCC_REQD for OpenBSD/sparc64. None of the lang/gcc4* packages build on OpenBSD 5.6/sparc64 at the moment. However, the boost-* packages build quite well with the system gcc: # gcc -v Reading specs from /usr/lib/gcc-lib/sparc64-unknown-openbsd5.6/4.2.1/specs Target: sparc64-unknown-openbsd5.6 Configured with: OpenBSD/sparc64 system compiler Thread model: posix gcc version 4.2.1 20070719 # pkg_info | grep boost boost-headers-1.56.0 Boost is a set of free, peer-reviewed, C++ libraries. The emphasis is on boost-jam-1.56.0 Boost is a set of free, peer-reviewed, C++ libraries. The emphasis is on
Chamges 1.57.0: Updated Libraries Any: RTTI is not required any more (TypeIndex library is used for RTTI emulation) Fixed 8958 Asio: Fixed the kqueue reactor so that it works on FreeBSD. Fixed an issue in the kqueue reactor which resulted in spinning when using serial ports on Mac OS. Fixed kqueue reactor support for read-only file descriptors. Fixed a compile error when using the /dev/poll reactor. Changed the Windows backend to use WSASocketW, as WSASocketA has been deprecated. Fixed some warnings reported by Visual C++ 2013. Fixed integer type used in the WinRT version of the byte-order conversion functions. Changed documentation to indicate that use_future and spawn() are not made available when including the asio.hpp convenience header. Explicitly marked asio::strand as deprecated. Use asio::io_service::strand instead. Circular Buffer: Fixed some warnings and move_if_noexcept from Boost.Move is used Config: BOOST_HAS_PRAGMA_DETECT_MISMATCH macro was added Container: Added support for initializer_list. Fixed double destruction bugs in vector and backward expansion capable allocators. Coroutine: optionally register stacks with valgrind 10386 MSVC link error in asymmetric_coroutine.hpp: symbol already defined 10536 call to 'begin(...pull_coroutine< R > & c)' is ambiguous Flyweight: Added serialization support via Boost Serialization. flyweight default constructor was made explicit in Boost 1.56, which introduces a regression in some initialization scenarios. The former non-explicit default constructor has been restored More...
Fix build on SunOS: transform _XOPEN_SOURCE=500 args where needed, and revert an upstream commit (https://svn.boost.org/trac/boost/ticket/10350). The latter part deserves a better fix (finish what upstream neglected).
Changes 1.56.0: Modularization Boost version control has migrated to a system using git submodules. This shouldn't make too much of a difference to users, although the directory structure is now a bit different. Parts of some libraries have been moved into different modules, and several new modules have been extracted from existing code. All header paths should remain the same. The new modules are: Assert: Customizable assert macros. Maintained by Peter Dimov. Core: Core utilities used by other libraries, with minimal dependencies. Maintained by Peter Dimov, Glen Fernandes and Andrey Semashev. Lexical_Cast: General literal text conversions, such as an int represented a string, or vice-versa, from Kevlin Henney. Throw_Exception: A common infrastructure for throwing exceptions from Boost libraries, from Emil Dotchevski. Winapi: Windows API declarations without <windows.h>, for internal Boost use. New Libraries Align: Memory alignment functions, allocators, and adaptors, from Glen Fernandes. Type_Index: Runtime/Compile time copyable type info, from Antony Polukhin.
Fix build of boost-libs under OpenBSD/amd64 5.5 * Add iconv dependency (fix build) * Add the patches for OpenBSD * gcc46 is required under OpenBSD 5.5 at least
Drop maintainership.
* Fix building with GCC (PR#48388). * Build long double math libraries on NetBSD and FreeBSD. * Removed obsolete patches.
Changes 1.55.0: Support was removed from Config for some very old versions of compilers. The new minimum requirements are: Digitial Mars 8.41 GCC 3.3 Intel 6.0 Visual C++ 7.1 Other compilers are currently unchanged, but we are considering removing support for some other old compilers. Candidates for removal are: Metroworks C++ (i.e. codewarrior) SunPro 5.7 and earlier Borland C++ Builder 2006 (5.82) and earlier If you're using any of these, please let us know on the mailing lists. We will take into account any feedback received before making a decision.
Changes 1.53.0: New Libraries: Atomic: C++11-style atomic<>, from Helge Bahmann, maintained by Tim Blechmann. Coroutine: Coroutine library, from Oliver Kowalke. Lockfree: Lockfree data structures, from Tim Blechmann. Multiprecision: Extended precision arithmetic types for floating point, integer and rational arithmetic from John Maddock and Christopher Kormanyos. Odeint: Solving ordinary differential equations, from Karsten Ahnert and Mario Mulansky. News This release contains a fix for ticket 7743, in Boost.Locale. For more details, see the security notice. More info http://www.boost.org/users/history/version_1_53_0.html
Use <sys/endian.h> on BSD systems to determine endianness. Fixes a problem on NetBSD/arm where boost could not determine the endianness. (patch has been submitted upstream)
Add missing assembler code for the context library on sparc and sparc64
Changes 1.52.0: http://www.boost.org/users/history/version_1_52_0.html
Changes 1.51.0: New Libraries * Context: Context switching library, from Oliver Kowalke. Updated Libraries * Algorithm: - Fixed is_sorted_until ; now matches the c++11 standard behavior on ranges with duplicate values. - Added range support for the rest of the search algorithms. - unhex now uses Boost.Exception to signal bad input. * Asio: - Fixed an incompatibility between ip::tcp::iostream and C++11. - Decorated GCC attribute names with underscores to prevent interaction with user-defined macros. - Added missing #include <cctype>, needed for some versions of MinGW. - Changed to use gcc's atomic builtins on ARM CPUs, when available. - Changed strand destruction to be a no-op, to allow strand objects to be destroyed after their associated io_service has been destroyed. - Added support for some newer versions of glibc which provide the epoll_create1() function but always fail with ENOSYS. - Changed the SSL implementation to throw an exception if SSL engine initialisation fails. - Fixed another regression in buffered_write_stream. - Implemented various minor performance improvements, primarily targeted at Linux x86 and x86-64 platforms. * Config: - Deprecated a whole bunch of macros that were c++11 specific, but not named to show that they were c++11 specific. Made new macros with better names, and paired the old macros with the new ones. Updated the documentation to list the deprecated macros. [more..]
Need to pre-create destination directory for SunOS pax to be happy
Changes 1.50:0 New Libraries * Algorithm: A collection of useful generic algorithms, from Marshall Clow. This includes several different searching algorithms, as well as most of the new algorithms from the C++11 standard library * Functional/OverloadedFunction: Overload different functions into a single function object, from Lorenzo Caminiti. * LocalFunction: Program functions locally, within other functions, directly within the scope where they are needed, from Lorenzo Caminiti. * Utility/IdentityType: Wrap types within round parenthesis so they can always be passed as macro parameters, from Lorenzo Caminiti. More http://www.boost.org/users/history/version_1_50_0.html
Update boost to 1.49.0 Changes: New Libraries * Heap: Priority queue data structures, from Tim Blechmann. Details: http://www.boost.org/users/history/version_1_49_0.html
Changes 1.48.0: New Libraries * Container: Standard library containers and extensions * Locale: Provide localization and Unicode handling tools for C++ Beilis. * Move: Portable move semantics for C++03 and C++11 compilers Details: http://www.boost.org/users/history/version_1_48_0.html
The native tar (gtar) on SunOS 5.10 doesn't like the distfile. Since archivers/pax is required anyway, unset TOOLS_PLATFORM.tar on SunOS.
Changes 1.47.0: New Libraries * Chrono: Useful time utilities * Geometry: Geometry Library * Phoenix: Define small unnamed function objects at the actual call site, and more * Ratio: Compile time rational arithmetic More: http://www.boost.org/users/history/version_1_47_0.html
On Mac OS X, look for libtool also in /Developer/usr/bin
Changes 1.46.1: Asio: * EV_ONESHOT seems to cause problems on some versions of Mac OS X, with the io_service destructor getting stuck inside the close() system call. Changed the kqueue backend to use EV_CLEAR instead. * Fixed compile failures with some versions of g++ due to the use of anonymous enums. * Fixed a bug on kqueue-based platforms, where some system calls that repeatedly fail with EWOULDBLOCK are not correctly re-registered with kqueue. * Changed asio::streambuf to ensure that its internal pointers are updated correctly after the data has been modified using std::streambuf member functions. * Fixed a bug that prevented the linger socket option from working on platforms other than Windows. Fusion: * Fix disable_if for Visual C++ 7.1/8.0 Filesystem: * Fix for STLPort. * PGI large file support Graph: * Bug fixes Icl: * Intersects for interval_maps and segment_type/element_type. * Fixed some ambiguous calls to functions in boost and std namespaces. * Other bug fixes, and documentation fixes. Math: * Several minor bug fixes. Polygon: * Disabled 45-degree booleans optimization. Proto: * Make display_expr copyable. * Fix const correctness problem in pass_through. Property Tree: * Fix compile error in JSON parser. Signals2: * Fix unused parameter warning. TR1: * Allow specialization of std::tr1::hash. * Improved support for Pathscale and Sun compilers. Unordered: * Add missing copy constructors and assignment operators when using rvalue references.
Changes 1.46.0:
New Libraries
* Icl: Interval Container Library, interval sets and maps and aggregation of
associated values, from Joachim Faulhaber.
Updated Libraries
* Array:
- Added support for cbegin/cend
- Fixed a problem with the Sun compiler
* Asio:
- Fixed a problem on older Linux kernels (where epoll is used without timerfd
support) that prevents timely delivery of deadline_timer handlers, after
the program has been running for some time
* Bind:
- make_adaptable now documented
* Concept Check:
- fixed warnings with self-assignment
* Filesystem:
- Version 3 of the library is now the default.
- IBM vacpp: Workaround for compiler bug affecting iterator_facade
- Verify, clarify, document that <boost/config/user.hpp> can be used to
specify BOOST_FILESYSTEM_VERSIO
- Replaced C-style assert with BOOST_ASSERT.
- Undeprecated unique_path(). Instead, add a note mentioning the workaround
for lack of thread safety and possible change to cwd. unique_path() is just
too convenient to deprecate!
- Cleared several GCC warnings.
- Changed V2 code to use BOOST_THROW_EXCEPTION.
- Windows: Fix status() to report non-symlink reparse point correctly.
- Add symlink_option to recursive_directory_iterator, allowing control over
recursion into directory symlinks. Note that the default is changed to not
recurse into directory symlinks.
- Reference documentation cleanup, including fixing missing and broken links,
and adding missing functions.
- Miscellaneous implementation code cleanup.
* Fusion:
- vector copy constructor now copies sequence members in the same order on different platforms
* Graph:
- Fixed Graphviz output to work on Visual C++ 7.1.
- Replaced assert with BOOST_ASSERT.
- Changed to Boost.Filesystem v3.
More...
Changes 1.45.0: * Fixed a problem on kqueue-based platforms where a deadline_timer may never fire if the io_service is running in a background thread * Fixed a const-correctness issue that prevented valid uses of has_service<> from compiling * Fixed MinGW cross-compilation * Removed dependency on deprecated Boost.System functions * Ensured close()/closesocket() failures are correctly propagated * Added a check for errors returned by InitializeCriticalSectionAndSpinCount * Added support for hardware flow control on QNX * Always use pselect() on HP-UX, if it is available. * Ensured handler arguments are passed as lvalues * Fixed Windows build when thread support is disabled * Fixed a Windows-specific problem where deadline_timer objects with expiry times set more than 5 minutes in the future may never expire * Fixed the resolver backend on BSD platforms so that an empty service name resolves to port number 0, as per the documentation * Fixed read operations so that they do not accept buffer sequences of type const_buffers_1 * Redefined Protocol and id to avoid clashing with Objective-C++ keywords * Fixed a vector reallocation performance issue that can occur when there are many active deadline_timer objects * Fixed the kqueue backend so that it compiles on NetBSD * Fixed the socket io_control() implementation on 64-bit Mac OS X and BSD platforms * Fixed a Windows-specific problem where failures from accept() are incorrectly treated as successes * Deprecated the separate compilation header <boost/asio/impl/src.cpp> in favour of <boost/asio/impl/src.hpp>
Correct install_name for libraries under MacOSX
Changes 1.44.0: New Libraries * Meta State Machine: High-performance expressive UML2 finite state machines, from Christophe Henry * Polygon: Booleans/clipping, resizing/offsetting and more for planar polygons with integral coordinates, from Lucanus Simonson. Updated Libraries * Accumulators * Asio * Config * Filesystem * Foreach * Hash * Iostreams * Math * MPL * Multi-index Containers * Proto * Regex * Thread * TR1 * Type Traits * uBLAS * Utility * Uuid * Xpressive
Changes 1.43.0: New Libraries: * Functional/factory: Function objects for dynamic and by-value construction. * Functional/forward: Function object adapters to address the forwarding problem. Major Updates: * Range: Boost.Range has undergone extensive updates that it include all of the features from the recently reviewed Boost.RangeEx. * Range-based version of the full STL iterator based algorithms. * Range adaptors which can be combined with range-based algorithms for unpresedented expressiveness and efficiency. * New functions: irange, istream_range, join, combine. Updated Libraries Build System: * When cross-compiling to GNU targets, static libraries are properly created. Previously, using such libraries resulted in Archive has no index error. * The naming of DLL and import libraries with gcc compiler on Windows, both mingw and cygwin, now matches default conventions of those environments. Previously, the naming scheme was the same as for other Windows compilers. Updated Tools: * Quickbook: Unicode escape characters. * Support the UTF-8 byte order mark. * Disallow [ in simple markup. Fixes some errors with mismatched punctuation. * Add a command line flag (-D) to define macros at the command line. * Improved post-processor output. * Check that [section] and [endsect] tags are balanced in templates.
Changes 1.42.0: * New Libraries: Uuid. * Updated Libraries: Asio, Circular Buffer, Fusion, Graph, Integer, Iostreams, Program.Options, PropertyMap, Proto, Regex, Spirit, Unordered, Xpressive.
Changes * New Libraries Property Tree: A tree data structure especially suited to storing configuration data, from Marcin Kalicinski and Sebastian Redl. * Updated Libraries * Build System A bug preventing "fat" 32-bit + 64-bit builds on OSX has been fixed.
PLIST fix; rev.bump
Changes 1.40.0: * Build System improvements. * Updated Libraries: Accumulators, Asio, Circular Buffer, Foreach, Function, Fusion, Hash, Interprocess, Intrusive, MPL, Program.Options, Proto, Random, Serialization, Unordered, Xpressive. Changes 1.39.0: * New Libraries: Signals2. * Updated Libraries: Asio, Flyweight, Foreach, Hash, Interprocess, Intrusive, Program.Options, Proto, PtrContainer, Range, Unordered, Xpressive. * Updated Tools: Boostbook, Quickbook.
Fixed detection of threads on NetBSD
Bump PKGREVISION following the update of textproc/icu, and the corresponding change of ABI. OK'ed by wiz@ (as was the textproc/icu update).
Update boost to 1.38.0. Patches from Brook Milligan in private mail. Lots of changes to list here. As usual, some new libraries have been added and there have been improvements all around. Of special interest is that we can now erase most of our local patches because they have been imported upstream.
Update boost to 1.36.0. Way too many changes since 1.34 to be listed here. Based on patches sent by Brook Milligan through private mail with some minimal changes by me to fix boost-python and builds on Mac OS X. Tested on NetBSD/amd64 current and Tiger.
Second round of explicit pax dependencies. As reminded by tnn@,
many packages used to use ${PAX}. Use the common way of directly calling
pax, it is created as tool after all.
The package supports installation to DESTDIR.
Do _not_ preserve user/group attributes while installing.
Update boost to 1.34.1. This is based on the patches provided by Brook Milligan
in PR pkg/36558. Committing it right after the freeze so that we have enough
time to resolve the problems that this will surely cause.
New Libraries
* Foreach Library:
BOOST_FOREACH macro for easily iterating over the elements of a
sequence, from Eric Niebler.
* Statechart Library:
Arbitrarily complex finite state machines can be implemented in
easily readable and maintainable C++ code, from Andreas Huber.
* TR1 Library:
An implementation of the C++ Technical Report on Standard Library
Extensions, from John Maddock.
This library does not itself implement the TR1 components, rather
it's a thin wrapper that will include your standard library's TR1
implementation (if it has one), otherwise it will include the Boost
Library equivalents, and import them into namespace std::tr1. Highlights
include: Reference Wrappers, Smart Pointers, result_of,
Function Object Binders, Polymorphic function wrappers, Type Traits,
Random Number Generators and Distributions, Tuples, Fixed Size Array,
Hash Function Objects, Regular Expressions and
Complex Number Additional Algorithms.
* Typeof Library:
Typeof operator emulation, from Arkadiy Vertleyb and Peder Holt.
* Xpressive Library:
Regular expressions that can be written as strings or as expression
templates, and that can refer to each other and themselves recursively
with the power of context-free grammars, from Eric Niebler.
Updated Libraries
* Assign Library:
o Support for ptr_map<key,T> via the new function ptr_map_insert()
o Support for initialization of Pointer Containers when the containers
hold pointers to an abstract base class.
* Date_time library:
o Support for new US/Canada timezone rules and other bug fixes.
See Change History for details.
* Filesystem Library:
Major upgrade in preparation for submission to the C++ Standards Committee
for TR2. Changes include:
o Internationalization, provided by class templates basic_path,
basic_filesystem_error, basic_directory_iterator
and basic_directory_entry.
o Simplification of the path interface by eliminating special constructors
to identify native formats.
o Rationalization of predicate function design, including the addition of
several new functions.
o Clearer specification by reference to POSIX, the ISO/IEEE Single Unix
Standard, with provisions for Windows and other operating systems.
o Preservation of existing user code whenever possible.
o More efficient directory iteration.
o Addition of a recursive directory iterator.
* Function Library:
Boost.Function now implements a small buffer optimization, which can
drastically improve the performance when copying or constructing
Boost.Function objects storing small function objects. For instance,
bind(&X:foo, &x, _1, _2) requires no heap allocation when placed into
a Boost.Function object.
* Functional/Hash Library
o Use declarations for standard classes, so that the library doesn't
need to include all of their headers
o Deprecated the <boost/functional/hash/*.hpp> headers.
o Add support for the BOOST_HASH_NO_EXTENSIONS macro, which disables
the extensions to TR1
o Minor improvements to the hash functions for floating point numbers.
* Graph Library:
o edmonds_maximum_cardinality_matching, from Aaron Windsor.
o lengauer_tarjan_dominator_tree, from JongSoo Park.
o compressed_sparse_row_graph, from Jeremiah Willcock and Douglas Gregor
of Indiana University.
o sorted_erdos_renyi_iterator, from Jeremiah Willcock
of Indiana University.
o biconnected_components now supports a visitor and named parameters,
from Janusz Piwowarski.
o adjacency_matrix now models the Bidirectional Graph concept.
o dijkstra_shortest_paths now calls vis.initialize_vertex for each
vertex during initialization.
o Note: the name of the compiled library for the GraphViz reader has
changed to boost_graph (from bgl-viz) to match Boost conventions.
o See the complete revision history for more information.
* MultiArray Library:
Boost.MultiArray now by default provides range-checking for operator[].
Range checking can be disabled by defining the macro BOOST_DISABLE_ASSERTS
before including multi_array.hpp. A bug in multi_array::resize() related
to storage orders was fixed.
* Multi-index Containers Library:
o New random access indices.
o Non key-based indices feature new rearrange facilities.
o This version also includes a number of optimizations and usage
improvements. For a complete list of changes,
see the library release notes.
* Optional Library:
o boost::none_t and boost::none now added to Optional's documentation
o Relational operators now directly support arguments of type 'T'
and 'none_t'
o operator->() now also works with reference types.
o Helper functions make_optional(val), make_optional(cond,val)
and get_optional_value_or(opt,alternative_value) added.
o Constructor taking a boolean condition (as well as a value) added.
o Member function get_value_or(alternative_value) added.
o Incompatbility bug with mpl::apply<> fixed.
o Converting assignment bug with uninitialized lvalues fixed.
* Parameter Library:
o Every ArgumentPack is now a valid MPL Forward Sequence.
o Support for unnamed arguments (those whose keyword is deduced from
their types) is added.
o Support for named and unnamed template arguments is added.
o New overload generation macros solve the forwarding problem directly.
o See also the Python library changes, below.
* Pointer Container Library:
o Support for serialization via Boost.Serialization.
o Exceptions can be disabled by defining the macro
BOOST_PTR_CONTAINER_NO_EXCEPTIONS before including any header.
This macro is defined by default if BOOST_NO_EXCEPTIONS is defined.
o Additional std::auto_ptr<T> overloads added s.t. one can also pass
std::auto_ptr<T> instead of only T* arguments to member functions.
o transfer() now has weaker requirements s.t. one can transfer objects
from ptr_container<Derived> to ptr_container<Base>,
* Python Library:
o Boost.Python now automatically appends C++ signatures to docstrings.
The new docstring_options.hpp header is available to control the
content of docstrings.
o stl_input_iterator, for turning a Python iterable object into an STL
input iterator, from Eric Niebler.
o Support for void* conversions is added.
o Integrated support for wrapping C++ functions built with the
parameter library; keyword names are automatically known to
docsstrings.
o Enhancements to the API for better embedding support
(boost::python::import(), boost::python::exec()
and boost::python::exec_file()).
* Signals Library:
More improvements to signal invocation performance from Robert Zeh.
* Smart Pointers Library:
o Allocator support as proposed in N1851 (162 Kb PDF).
o pointer_cast and pointer_to_other utilities to allow
pointer-independent code, from Ion Gaztanaga.
* String Algorithm Library:
o lexicographical_compare
o join
o New comparison predicates is_less, is_not_greater.
o Negative indexes support (like Perl) in various algorihtms
(*_head/tail, *_nth).
* Wave Library:
o Wave now correctly recognizes pp-number tokens as mandated by the
C++ Standard, which are converted to C++ tokens right before they are
returned from the library.
o Several new preprocessing hooks have been added. For a complete
description please refer to the related documentation page:
The Context Policy.
o Shared library (dll) support has been added for the generated Wave
libraries.
o The overall error handling has been improved. It is now possible to
recover and continue after an error or a warning was issued.
o Support for optional comment and/or full whitespace preservation
in the generated output stream has been added.
o The Wave library now performs automatic include guard detection to
avoid accessing header files more than once, if appropriate.
o Full interactive mode has been added to the Wave tool. Now the Wave
tool can be used just like Python or Perl for instance to
interactively try out your BOOST_PP macros. Additionally it is now
possible to load and save the current state of an interactive
session (macro tables et.al.).
o The overall performance has been improved by upto 40-60%, depending
on the concrete files to process.
o Support for new pragmas has been added allowing to control certain
library features from inside the preprocessed sources (partial
output redirection, control of generated whitespace and #line
directives).
o Optional support for #pragma message "..." has been added.
o This version also includes a number of bug fixes and usage
improvements. For a complete list of changes, see the libraries
change log.
pkglint USE_LANGUAGES cleanup. Patch from Sergey Svishchev.
Use find -print | xargs rather than find -exec.
USE_LANGUAGES+= c
Derive BOOST_SHORT_VERSION automatically from BOOST_VERSION.
Update boost* to 1.33.1: Any Library: Cast to reference types introduced in 1.33.0 is now documented on any_cast documentation page. Config Library: Don't undef BOOST_LIB_TOOLSET after use. Boost.Python: * The build now assumes Python 2.4 by default, rather than 2.2 * Support Python that's built without Unicode support * Support for wrapping classes with overloaded address-of (&) operators Smart Pointer Library: Fixed problems under Metrowerks CodeWarrior on PowerPC (Mac OS X) with inlining on, GNU GCC on PowerPC 64. Regex Library: Fixed the supplied makefiles, and other small compiler specific changes. Refer to the regex history page for more information on these and other small changes. Iostreams Library: Improved the interface for accessing a chain's components, added is_open members to the file and file descriptor devices, fixed memory-mapped files on Windows, and made minor changes to the documentation. Functional/Hash Library: Fixed the points example. Multi-index Containers Library: Fixed a problem with multithreaded code, and other minor changes. Refer to the library release notes for further details. Graph Library: * Fixed a problem with the relaxed heap on x86 Linux (fixes bug in dijkstra_shortest_paths). * Fixed problems with cuthill_mckee_ordering and king_ordering producing no results. * Added color_map parameter to dijkstra_shortest_paths. Signals Library: Fixed problems with the use of Signals across shared library boundaries. Thread library: read_write_mutex has been removed due to problems with deadlocks. Wave library (V1.2.1) Fixed a couple of problems, refer to the change log for further details.
Update Boost to 1.33.0:
New Libraries
* Iostreams Library: Framework for defining streams, stream
buffers and i/o filters, from Jonathan Turkanis.
* Functional/Hash Library: A TR1 hash function object that can be
extended to hash user defined types, from Daniel James.
* Parameter Library: Write functions that accept arguments by
name: especially useful when a function has more than one
argument with a useful default value, since named arguments can
be passed in any order.
* Pointer Container Library: Containers for storing heap-allocated
polymorphic objects to ease OO-programming, from Thorsten Ottosen.
* Wave: Standards conformant implementation of the mandated
C99/C++ preprocessor functionality packed behind an easy to use
iterator interface, from Hartmut Kaiser.
Updated Libraries
* Assignment Library: Support for Pointer Container Library and
new efficient functions ref_list_of() and cref_list_of() for
generating anonymous ranges.
* Bind Library: Bind expressions now support comparisons and
negation. Example: bind(&X::name, _1) < bind(&X::name, _2).
* Date-Time Library:
o Added local time and time zone classes.
o Added format-based Input/Output facets.
o For a complete list of changes, see the library change history.
* Graph Library: Introduced several new algorithms and improved
existing algorithms:
o Experimental Python bindings, from Doug Gregor and Indiana
University.
o floyd_warshall_all_pairs_shortest_paths, from Lauren Foutz
and Scott Hill.
o astar_search, from Kristopher Beevers and Jufeng Peng.
o fruchterman_reingold_force_directed_layout, from Doug
Gregor and Indiana University.
o biconnected_components and articulation_points, from
Jeremy Siek, Janusz Piwowarski, and Doug Gregor.
o sequential_vertex_coloring has been updated, tested, and
documented.
o gursoy_atun_layout, from Jeremiah Willcock and Doug Gregor
of Indiana University.
o king_ordering, from D. Kevin McGrath of Indiana University.
o cuthill_mckee ordering has been recast as an invocation of
breadth_first_search and now supports graphs with multiple
components.
o dijkstra_shortest_paths now uses a relaxed heap as
its priority queue, improving its complexity to O(V log V) and
improving real-world performance for larger graphs.
o read_graphviz now has a new, Spirit-based parser that
works for all graph types and supports arbitrary
properties on the graph, from Ron Garcia. The old,
Bison-based GraphViz reader has been deprecated and will
be removed in a future Boost release. write_graphviz also
supports dynamic properties.
o subgraph: get_property now refers to the subgraph
property, not the root graph's property.
o See the history for additional changes and bug fixes.
* Multi-index Containers Library:
o New hashed indices.
o Added serialization support.
o For a complete list of changes, see the library release notes.
* Program Options Library:
o Option descriptions are now printed with word wrapping.
o Command line parser can bypass unregistered options,
instead of throwing.
o Removed support for "implicit" (optional) values.
o New customization method
'command_line_parser::extra_style_parser'. Unlike
'additional_parser', allows the user to parse several
tokens and return a vector of options, not just a single
option.
o Work with disabled exceptions.
* Property Map Library: Introduced the dynamic properties class,
which provides dynamically-typed access to a set of property maps.
* Random Number Library: improved initialization for
mersenne_twister, algorithm by Makoto Matsumoto and Takuji
Nishimura, implemented for Boost by Jens Maurer.
Note: All test vectors for mersenne_twisters constructed or
seeded without parameters or with a single unsigned int parameter
become invalid.
* Range Library: Minor addition of convenience functions to
iterator range like front(), back() and operator[]().
* Regex Library:
o Rewritten front end parser now supports (?imsx-imsx)
constructs, plus lookbehind assertions and conditional
expressions.
o Thin wrapper classes improve integration with MFC/ATL code.
o Full (optional) Unicode support via the ICU library.
Refer to the regex history page for more information on these
and other small changes.
* Serialization Library:
o DLL version.
o Auto-linking.
o Serialization of variants.
o Improved seialization of shared pointers.
* Signals Library: added slot blocking/unblocking, from Frantz
Maerten. Huge improvements to signal invocation performance from
Robert Zeh.
This update has been tested on NetBSD 2.0.2, 3.0_BETA and current.
Enable sonames under DragonFly, FreeBSD and NetBSD. The default build infrastructure only uses them under Linux and OpenBSD (eww, hardcoded logic based on OS names). Aside making installations more consistent across systems, this lets Boost work correctly on the systems where sonames were previously used. Otherwise, they are unable to find the correct libraries at runtime and we get PLIST errors (more files installed than expected). The problem exposes itself when building software that needs Boost (e.g. monotone). This also means that we can't rename the installed libraries any more as we were doing until now, because programs linked against them will be looking for their respective sonames. Therefore, keep the default names produced by a --layout=system build. Bump PKGREVISION of boost, boost-libs and boost-python to 1.
Remove USE_BUILDLINK3 and NO_BUILDLINK; these are no longer used.
The new Boost packages have to conflict with boost<1.32.0 (except the meta-package itself).
Complete rework of the Boost packages:
- Drop devel/boost and devel/boost-thread.
- Add devel/boost-docs which includes all the documentation related to Boost
(previously included in devel/boost).
- Add devel/boost-build which includes bjam, the Boost.Build framework.
- Add devel/boost-headers which includes all the header files needed at build
time by programs using Boost (previously included in devel/boost).
- Add devel/boost-libs which includes all the binary libraries needed at build
and run time by programs using Boost (previously included in devel/boost and
devel/thread). All of them are multithreaded, to make things easier.
- devel/boost-python includes the Boost Python library (as it did before), but
now works, given that everything is threaded again.
- Drop our thread_user.hpp customization. Avoids some build failures that
appeared when the previous boost-thread package was not installed.
- Use static PLISTs.
- Install unversioned files. Makes things *a lot* easier when building stuff
outside pkgsrc.
- Add meta-pkgs/boost, a meta package that depends on all of the above.
Thanks go to jlam@ and tv@ for their comments.
While here, update to 1.32.0:
New Toolset Names
The names of some the Boost.Build toolsets have been changed to remove the "."
(dot) character and to fix some other naming inconsistencies. For example,
vc7.1 toolset was renamed to become vc-7_1. Please refer to the Supported
Toolsets section of the installation guide for the complete list of the current
toolset names. This change was made as a part of the effort to make the Boost
distribution compatible with ISO 9660 level 2 requirements.
New Libraries
* Assignment Library: Filling containers with constant or generated data
has never been easier, from Thorsten Ottosen.
* Minmax Library: Standard library extensions for simultaneous min/max and
min/max element computations, from Hervé Brönnimann.
* Multi-index Containers Library: Containers with multiple STL-compatible
access interfaces, from Joaquín M López Muñoz.
* Numeric Conversion Library: Optimized policy-based numeric conversions,
from Fernando Cacciola.
* Program Options Library: Access to configuration data given on command
line, in config files and other sources, from Vladimir Prus.
* Range Library: A new infrastructure for generic algorithms that builds
on top of the new iterator concepts, from Thorsten Ottosen.
* Serialization Library: Serialization/de-serialization of arbitrary C++
data structures to various formats including text, binary, and xml, from
Robert Ramey.
* String Algorithms Library: Collection of string related algorithms for
case conversion, trimming, find/replace operations and more, from Pavol
Droba.
* Tribool: 3-state boolean type library, from Doug Gregor.
Updated Libraries
* Compose: This deprecated library has been removed.
* Graph:
o Added bundled properties to the adjacency_list and adjacency_matrix
class templates, greatly simplifying the introduction of internal
vertex and edge properties.
o The LEDA graph adaptors have been ported to LEDA 4.5.
o Added algorithms for betweenness centrality and betweenness
centrality clustering.
o Added circle layout and undirected spring layout algorithms.
* MPL Library:
o Updated to use the Boost Software License.
o New documentation, including a complete reference manual.
o Major interface changes and improvements, many of which are not
backward compatible. Please refer to the 1.32 changelog for the
detailed information about upgrading to the new version.
* Python Library:
o Updated to use the Boost Software License.
o A new, better method of wrapping classes with virtual functions
has been implemented.
o Support for the new Python Bool type, thanks to Daniel Holth.
o Support for upcoming GCC symbol export control features have been
folded in, thanks to Niall Douglas.
o Improved support for std::auto_ptr-like types.
o Components used by other libraries have been moved out of
python/detail and into boost/detail to improve dependency
relationships.
o Miscellaneous bug fixes and compiler workarounds.
* Signals Library: Introduced deterministic slot ordering, permitting
slots to be connected at the beginning or end of slot groups or the slot
list itself. Combiners may safely have state and are accessible from the
signal.
* Utility: class template result_of added.
* Test Library:
o namespace names gets shorten; old one still supported till next
release
o added proper encoding of XML PCDATA
o support for wide string comparison implemented
For complete list of changes see Test Library release notes.
Regression tests
This release has been extensively tested on a variety of different compilers
and platforms. It is known to contain no regressions against the previous
reference release on the compilers and configurations tested. Please refer to
the corresponding regression reports to see how well your compiler performs on
the new Boost codebase.