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51 lines
1.3 KiB
C
51 lines
1.3 KiB
C
/* strstr with SSE4.2 intrinsics
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Copyright (C) 2010-2013 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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<http://www.gnu.org/licenses/>. */
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#include <ctype.h>
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#include <xmmintrin.h>
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/* Similar to __m128i_strloadu. Convert to lower case for none-POSIX/C
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locale. */
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static inline __m128i
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__m128i_strloadu_tolower (const unsigned char *p)
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{
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union
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{
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char b[16];
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__m128i x;
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} u;
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for (int i = 0; i < 16; ++i)
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if (p[i] == 0)
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{
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u.b[i] = 0;
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break;
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}
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else
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u.b[i] = tolower (p[i]);
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return u.x;
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}
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#define STRCASESTR_NONASCII
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#define USE_AS_STRCASESTR
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#define STRSTR_SSE42 __strcasestr_sse42_nonascii
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#include "strstr.c"
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