47 lines
1.2 KiB
C
47 lines
1.2 KiB
C
/* Copyright (C) 1995-2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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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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<https://www.gnu.org/licenses/>. */
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#include <wchar.h>
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#include <loop_unroll.h>
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#ifndef WCSRCHR
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# define WCSRCHR wcsrchr
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#endif
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/* Find the last occurrence of WC in WCS. */
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wchar_t *
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WCSRCHR (const wchar_t *wcs, const wchar_t wc)
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{
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wchar_t *retval = NULL;
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#define ITERATION(index) \
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({ \
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if (*wcs == wc) \
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retval = (wchar_t*) wcs; \
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*wcs++ != L'\0'; \
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})
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#ifndef UNROLL_NTIMES
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# define UNROLL_NTIMES 1
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#endif
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while (1)
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UNROLL_REPEAT (UNROLL_NTIMES, ITERATION);
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return retval;
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}
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