ack/lang/cem/libcc.ansi/core/string/memchr.c

/*
 * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
 * See the copyright notice in the ACK home directory, in the file "Copyright".
 */
/* $Id$ */

#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;
}