STRSPN(3) Linux Programmer's Manual STRSPN(3)NAME
strspn, strcspn - get length of a prefix substring
SYNOPSIS
#include <string.h>
size_t strspn(const char *s, const char *accept);
size_t strcspn(const char *s, const char *reject);
DESCRIPTION
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.
RETURN VALUE
The strspn() function returns the number of bytes in the initial seg‐
ment of s which consist only of bytes from accept.
The strcspn() function returns the number of bytes in the initial seg‐
ment of s which are not in the string reject.
ATTRIBUTES
Multithreading (see pthreads(7))
The strspn() and strcspn() functions are thread-safe.
CONFORMING TO
SVr4, 4.3BSD, C89, C99.
SEE ALSOindex(3), memchr(3), rindex(3), strchr(3), string(3), strpbrk(3),
strsep(3), strstr(3), strtok(3), wcscspn(3), wcsspn(3)COLOPHON
This page is part of release 3.65 of the Linux man-pages project. A
description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
2014-02-28 STRSPN(3)
