STRSPN(3)                                           Linux Programmer's Manual                                          STRSPN(3)



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
       SVr4, 4.3BSD, C89, C99.

SEE ALSO
       index(3), memchr(3), rindex(3), strchr(3), strpbrk(3), strsep(3), strstr(3), strtok(3), wcscspn(3), wcsspn(3)

COLOPHON
       This  page  is  part of release 3.25 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/.



                                                           1993-04-12                                                  STRSPN(3)