2.11BSD/man/cat3/strspn.0
STRSPN(3) UNIX Programmer's Manual STRSPN(3)
NAME
strspn - span a string
SYNOPSIS
#include <string.h>
size_t
strspn(s, charset)
_c_h_a_r *_s;
_c_h_a_r *_c_h_a_r_s_e_t;
DESCRIPTION
The strcspn() function spans the initial part of the null-
terminated string _s as long as the characters from _s occur
in string _c_h_a_r_s_e_t .
RETURN VALUES
The strspn() function returns the number of characters
spanned.
SEE ALSO
index(3), memchr(3), rindex(3), strchr(3), strcspn(3),
strpbrk(3), strrchr(3), strsep(3), strstr(3), strtok(3)
STANDARDS
The strspn() function conforms to ANSI C X3.159-9189 (``ANSI
C'').
Printed 11/26/99 January 12, 1996 1