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46 lines
1.3 KiB
C
46 lines
1.3 KiB
C
/* Copyright (C) 1995-2017 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.ai.mit.edu>, 1995.
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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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#ifndef WCSCMP
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# define WCSCMP __wcscmp
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#endif
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/* Compare S1 and S2, returning less than, equal to or
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greater than zero if S1 is lexicographically less than,
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equal to or greater than S2. */
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int
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WCSCMP (const wchar_t *s1, const wchar_t *s2)
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{
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wchar_t c1, c2;
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do
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{
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c1 = *s1++;
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c2 = *s2++;
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if (c2 == L'\0')
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return c1 - c2;
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}
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while (c1 == c2);
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return c1 < c2 ? -1 : 1;
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}
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libc_hidden_def (WCSCMP)
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weak_alias (WCSCMP, wcscmp)
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