ack/lang/cem/libcc.ansi/core/string/strstr.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>

char* strstr(register const char* s, register const char* wanted)
{
	register const int len = strlen(wanted);

	if (len == 0)
		return (char*)s;
	while (*s != *wanted || strncmp(s, wanted, len))
		if (*s++ == '\0')
			return (char*)NULL;
	return (char*)s;
}