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aca6ea6586
fnmatch brings in references to wmemchr, which isn't in all the standards that contain fnmatch, resulting in linknamespace test failures. This patch fixes this in the usual way, making wmemchr into a weak alias for __wmemchr. Tested for x86_64 and x86 (testsuite, and that disassembly of installed shared libraries is unchanged by the patch). [BZ #18468] * wcsmbs/wmemchr.c (wmemchr): Rename to __wmemchr and define as weak alias of __wmemchr. Use libc_hidden_weak. * include/wchar.h (__wmemchr): Declare. Use libc_hidden_proto. * posix/fnmatch.c [HANDLE_MULTIBYTE] (MEMCHR): Use __wmemchr instead of wmemchr.
65 lines
1.6 KiB
C
65 lines
1.6 KiB
C
/* Copyright (C) 1996-2015 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@gnu.org>, 1996.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <wchar.h>
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wchar_t *
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__wmemchr (s, c, n)
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const wchar_t *s;
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wchar_t c;
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size_t n;
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{
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/* For performance reasons unfold the loop four times. */
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while (n >= 4)
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{
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if (s[0] == c)
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return (wchar_t *) s;
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if (s[1] == c)
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return (wchar_t *) &s[1];
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if (s[2] == c)
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return (wchar_t *) &s[2];
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if (s[3] == c)
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return (wchar_t *) &s[3];
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s += 4;
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n -= 4;
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}
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if (n > 0)
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{
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if (*s == c)
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return (wchar_t *) s;
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++s;
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--n;
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}
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if (n > 0)
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{
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if (*s == c)
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return (wchar_t *) s;
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++s;
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--n;
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}
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if (n > 0)
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if (*s == c)
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return (wchar_t *) s;
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return NULL;
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}
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libc_hidden_def (__wmemchr)
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weak_alias (__wmemchr, wmemchr)
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libc_hidden_weak (wmemchr)
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