NAME

     strspn, strcspn - search a string for a set of characters

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 of the initial segment of s which consists entirely of characters in accept. The strcspn() function calculates the length of the initial segment of s which consists entirely of characters not in reject.

RETURN VALUE
The strspn() function returns the number of characters in the initial segment of s which consist only of characters from accept. The strcspn() function returns the number of characters in the initial segment of s which are not in the string reject.

CONFORMING TO
SVID 3, POSIX, BSD 4.3, ISO 9899

SEE ALSO
index(3), memchr(3), rindex(3), strpbrk(3), strsep(3), strstr(3),