/*  File   : strcpbrk.c
    Author : Richard A. O'Keefe.
    Updated: 20 April 1984
    Defines: strcpbrk()

    strcpbrk(s1, s2) returns a pointer to the first character of s1 which
    does not occur in s2.  It is to strpbrk as strcspn is to strspn.   It
    relies on NUL never being in a set.
*/

#include "strings.h"
#include "_str2set.h"

char *strcpbrk(str, set)
    register _char_ *str;
    char *set;
    {
	_str2set(set);
	while (_set_vec[*str++] == _set_ctr);
	return *--str ? str : NullS;
    }