glibc/stdlib/wctomb.c
Ulrich Drepper b113c12c35 Update.
1999-07-28  Ulrich Drepper  <drepper@cygnus.com>

	* misc/efgcvt.c: Use IEEE 854 formula to compute the number of digits
	to print.
	* misc/efgcvt_r.c: Likewise.
	* misc/qefgcvt.c: Likewise.
	* misc/qefgcvt_r.c: Likewise.
	* misc/tst-efgcvt.c: Remove one test which cannot reliably be run
	anymore.
1999-07-28 22:39:04 +00:00

54 lines
1.9 KiB
C

/* Copyright (C) 1991, 92, 95, 96, 97, 98, 99 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., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <stdlib.h>
#include <wchar.h>
#include <gconv.h>
#include <wcsmbs/wcsmbsload.h>
extern mbstate_t __no_r_state; /* Defined in mbtowc.c. */
/* Convert WCHAR into its multibyte character representation,
putting this in S and returning its length.
Attention: this function should NEVER be intentionally used.
The interface is completely stupid. The state is shared between
all conversion functions. You should use instead the restartable
version `wcrtomb'. */
int
wctomb (char *s, wchar_t wchar)
{
/* If S is NULL the function has to return null or not null
depending on the encoding having a state depending encoding or
not. */
if (s == NULL)
{
/* Make sure we use the correct value. */
update_conversion_ptrs ();
/* This is an extension in the Unix standard which does not directly
violate ISO C. */
memset (&__no_r_state, '\0', sizeof __no_r_state);
return __wcsmbs_gconv_fcts.tomb->__stateful;
}
return __wcrtomb (s, wchar, &__no_r_state);
}