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NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUE | ATTRIBUTES | STANDARDS | HISTORY | SEE ALSO | COLOPHON |
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strspn(3) Library Functions Manual strspn(3)
strspn, strcspn - get length of a prefix substring
Standard C library (libc, -lc)
#include <string.h>
size_t strspn(const char *s, const char *accept);
size_t strcspn(const char *s, const char *reject);
The strspn() function calculates the length (in bytes) of the
initial segment of s which consists entirely of bytes in accept.
The strcspn() function calculates the length of the initial
segment of s which consists entirely of bytes not in reject.
The strspn() function returns the number of bytes in the initial
segment of s which consist only of bytes from accept.
The strcspn() function returns the number of bytes in the initial
segment of s which are not in the string reject.
For an explanation of the terms used in this section, see
attributes(7).
┌─────────────────────────────────────┬───────────────┬─────────┐
│ Interface │ Attribute │ Value │
├─────────────────────────────────────┼───────────────┼─────────┤
│ strspn(), strcspn() │ Thread safety │ MT-Safe │
└─────────────────────────────────────┴───────────────┴─────────┘
C11, POSIX.1-2008.
POSIX.1-2001, C89, SVr4, 4.3BSD.
memchr(3), strchr(3), string(3), strpbrk(3), strsep(3),
strstr(3), strtok(3), wcscspn(3), wcsspn(3)
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2024-06-26. If you discover any rendering problems in this HTML
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Linux man-pages 6.9.1 2024-05-02 strspn(3)
Pages that refer to this page: memchr(3), strchr(3), string(3), strpbrk(3), strsep(3), strstr(3), strtok(3), wcscspn(3), wcsspn(3), signal-safety(7)
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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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