/*FUNCTION	<<wcsrchr>>---wide-character string scanning operation ANSI_SYNOPSIS	#include <wchar.h>	wchar_t *wcsrchr(const wchar_t *<[s]>, wchar_t <[c]>);TRAD_SYNOPSIS	#include <wchar.h>	wchar_t *wcsrchr(<[s]>, <[c]>	const wchar_t *<[s]>;	wchar_t <[c]>;DESCRIPTION	The <<wcsrchr>> function locates the last occurrence of <[c]> in the	wide-character string pointed to by <[s]>. The value of <[c]> must be a	character representable as a type wchar_t and must be a wide-character	code corresponding to a valid character in the current locale.	The terminating null wide-character code is considered to be part of	the wide-character string. RETURNS	Upon successful completion, <<wcsrchr>> returns a pointer to the	wide-character code or a null pointer if <[c]> does not occur in the	wide-character string.PORTABILITY<<wcsrchr>> is ISO/IEC 9899/AMD1:1995 (ISO C).No supporting OS subroutines are required.*//*	$NetBSD: wcsrchr.c,v 1.1 2000/12/23 23:14:37 itojun Exp $	*//*- * Copyright (c)1999 Citrus Project, * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright *    notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright *    notice, this list of conditions and the following disclaimer in the *    documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * *	citrus Id: wcsrchr.c,v 1.2 2000/12/21 05:07:25 itojun Exp */#include <_ansi.h>#include <stddef.h>#include <wchar.h>wchar_t *_DEFUN (wcsrchr, (s, c),	_CONST wchar_t * s _AND	wchar_t c){  _CONST wchar_t *p;  p = s;  while (*p)    p++;  while (s <= p)    {      if (*p == c)	{	  /* LINTED interface specification */	  return (wchar_t *) p;	}      p--;    }  return NULL;}