MirBSD manpage: strspn(3)

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

NAME

     strspn - span a string

SYNOPSIS

     #include <string.h>

     size_t
     strspn(const char *s, const char *charset);

DESCRIPTION

     The strspn() function spans the initial part of the NUL-terminated string
     s as long as the characters from s occur in string charset.

RETURN VALUES

     The strspn() function returns the number of characters spanned.

EXAMPLES

     The following call to strspn() will return 3, since the first three char-
     acters of string s are part of string charset:

           char *s = "foobar";
           char *charset = "of";
           size_t span;

           span = strspn(s, charset);

SEE ALSO

     memchr(3), strchr(3), strcspn(3), strpbrk(3), strrchr(3), strsep(3),
     strstr(3), strtok(3)

STANDARDS

     The strspn() function conforms to ANSI X3.159-1989 ("ANSI C89").

MirBSD #10-current              June 29, 1991                                1