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/* Copyright (C) 1995 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <mbstr.h>
#include <stdlib.h>
#define __need_wchar_t
#include <stddef.h>
/* Find the last occurence of MBC in MBS. */
char *
mbsrchr (mbs, mbc)
const char *mbs;
mbchar_t mbc;
{
const char * retval = NULL;
int clen;
wchar_t wc;
wchar_t c;
/* Reset multibyte characters to their initial state. */
(void) mblen ((char *) NULL, 0);
clen = mbtowc (&wc, (char *) &mbc, MB_CUR_MAX);
if (clen < 0)
/* FIXME: search character MBC is illegal. */
return NULL;
else if (clen == 0)
wc = L'\0';
clen = 0;
do
{
mbs += clen;
clen = mbtowc (&c, mbs, MB_CUR_MAX);
}
while (clen > 0 && c != wc);
if (clen < 0)
/* FIXME: clen < 0 means illegal character in string. */
return NULL;
return (char *) (clen > 0 || (clen == 0 && wc == L'\0') ? mbs : retval);
}
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