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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ATTRIBUTES | CONFORMING TO | SEE ALSO | COLOPHON |
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STRSPN(3) Linux Programmer's Manual STRSPN(3)
strspn, strcspn - get length of a prefix substring
#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 │
└────────────────────┴───────────────┴─────────┘
POSIX.1-2001, POSIX.1-2008, C89, C99, SVr4, 4.3BSD.
index(3), memchr(3), rindex(3), strchr(3), string(3), strpbrk(3),
strsep(3), strstr(3), strtok(3), wcscspn(3), wcsspn(3)
This page is part of release 5.10 of the Linux man-pages project.
A description of the project, information about reporting bugs,
and the latest version of this page, can be found at
https://www.kernel.org/doc/man-pages/.
2015-08-08 STRSPN(3)
Pages that refer to this page: index(3), 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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