source: trunk/minix/lib/ansi/memchr.c@ 9

/*
 * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
 * See the copyright notice in the ACK home directory, in the file "Copyright".
 */
/* $Header: /cvsup/minix/src/lib/ansi/memchr.c,v 1.1.1.1 2005/04/21 14:56:05 beng Exp $ */

#include        <string.h>

void *
memchr(const void *s, register int c, register size_t n)
{
        register const unsigned char *s1 = s;

        c = (unsigned char) c;
        if (n) {
                n++;
                while (--n > 0) {
                        if (*s1++ != c) continue;
                        return (void *) --s1;
                }
        }
        return NULL;
}