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glibc/sysdeps/x86_64/multiarch/strcasestr-nonascii.c
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/* strstr with SSE4.2 intrinsics | |
Copyright (C) 2010-2013 Free Software Foundation, Inc. | |
This file is part of the GNU C Library. | |
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 <ctype.h> | |
#include <xmmintrin.h> | |
/* Similar to __m128i_strloadu. Convert to lower case for none-POSIX/C | |
locale. */ | |
static __m128i | |
__m128i_strloadu_tolower (const unsigned char *p) | |
{ | |
union | |
{ | |
char b[16]; | |
__m128i x; | |
} u; | |
for (int i = 0; i < 16; ++i) | |
if (p[i] == 0) | |
{ | |
u.b[i] = 0; | |
break; | |
} | |
else | |
u.b[i] = tolower (p[i]); | |
return u.x; | |
} | |
#define STRCASESTR_NONASCII | |
#define USE_AS_STRCASESTR | |
#define STRSTR_SSE42 __strcasestr_sse42_nonascii | |
#include "strstr.c" |