glibc/wcsmbs/wmemset.c
Joseph Myers 01cad84e19 Fix __printf_fp wmemset namespace (bug 17574).
__printf_fp calls wmemset, but that is not an ISO C90 function.  This
patch fixes it to call a new __wmemset name instead (with wmemset
being a weak alias).

Tested for x86_64 (testsuite, and that disassembly of installed shared
libraries is unchanged by the patch).

	[BZ #17574]
	* wcsmbs/wmemset.c (wmemset): Rename to __wmemset and define as
	weak alias of __wmemset.  Use libc_hidden_weak.
	(__wmemset): Use libc_hidden_def.
	* include/wchar.h (__wmemset): Declare.  Use libc_hidden_proto.
	* stdio-common/printf_fp.c (___printf_fp): Call __wmemset instead
	of wmemset.
2014-11-12 22:38:11 +00:00

58 lines
1.3 KiB
C

/* Copyright (C) 1996-2014 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@gnu.org>, 1996.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <wchar.h>
wchar_t *
__wmemset (s, c, n)
wchar_t *s;
wchar_t c;
size_t n;
{
wchar_t *wp = s;
while (n >= 4)
{
wp[0] = c;
wp[1] = c;
wp[2] = c;
wp[3] = c;
wp += 4;
n -= 4;
}
if (n > 0)
{
wp[0] = c;
if (n > 1)
{
wp[1] = c;
if (n > 2)
wp[2] = c;
}
}
return s;
}
libc_hidden_def (__wmemset)
weak_alias (__wmemset, wmemset)
libc_hidden_weak (wmemset)