2N/A/* Convert wide character to multibyte character.
2N/A Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
2N/A Written by Bruno Haible <bruno@clisp.org>, 2008.
2N/A
2N/A This program is free software: you can redistribute it and/or modify
2N/A it under the terms of the GNU General Public License as published by
2N/A the Free Software Foundation; either version 3 of the License, or
2N/A (at your option) any later version.
2N/A
2N/A This program is distributed in the hope that it will be useful,
2N/A but WITHOUT ANY WARRANTY; without even the implied warranty of
2N/A MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
2N/A GNU General Public License for more details.
2N/A
2N/A You should have received a copy of the GNU General Public License
2N/A along with this program. If not, see <http://www.gnu.org/licenses/>. */
2N/A
2N/A#include <config.h>
2N/A
2N/A/* Specification. */
2N/A#include <wchar.h>
2N/A
2N/A#include <errno.h>
2N/A#include <stdlib.h>
2N/A
2N/A
2N/Asize_t
2N/Awcrtomb (char *s, wchar_t wc, mbstate_t *ps)
2N/A{
2N/A /* This implementation of wcrtomb on top of wctomb() supports only
2N/A stateless encodings. ps must be in the initial state. */
2N/A if (ps != NULL && !mbsinit (ps))
2N/A {
2N/A errno = EINVAL;
2N/A return (size_t)(-1);
2N/A }
2N/A
2N/A if (s == NULL)
2N/A /* We know the NUL wide character corresponds to the NUL character. */
2N/A return 1;
2N/A else
2N/A {
2N/A int ret = wctomb (s, wc);
2N/A
2N/A if (ret >= 0)
2N/A return ret;
2N/A else
2N/A {
2N/A errno = EILSEQ;
2N/A return (size_t)(-1);
2N/A }
2N/A }
2N/A}