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baldurk
856c838def
* In a previous update in 2021 many copyright ranges were truncated accidentally, and some files have been copy-pasted with wrong years. These dates have been fixed based on git history and original copyright messages.
69 lines
2.5 KiB
C
69 lines
2.5 KiB
C
/******************************************************************************
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* The MIT License (MIT)
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*
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* Copyright (c) 2025-2026 Baldur Karlsson
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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******************************************************************************/
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#pragma once
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// workaround for bug with latest windows SDK version. wchar.h requires intrinsic that's not
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// available on VS2015 _mm_loadu_si64. We also just don't want to pull in build-time dependencies
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// on AVX if we can help it
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// include this header first (on older SDKs it might not include this but it's not a heavy header
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#include <immintrin.h>
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// if this isn't defined (by new compiler versions) then define it now. This may break in future if
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// this becomes a real function instead of a define...
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#ifndef _mm_loadu_si64
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#define _mm_loadu_si64(p) _mm_loadl_epi64((__m128i const *)(p))
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#endif
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// include the real wchar.h. To avoid self-referential includes we assume it sits in a ucrt folder
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#include <../ucrt/wchar.h>
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// don't call normal functions to avoid warnings about pulling in avx instructions
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#define wmemcmp wmemcmp_simple
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inline int wmemcmp_simple(const wchar_t *a, const wchar_t *b, size_t n)
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{
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size_t i = 0;
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for(; i < n; ++i)
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{
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if(a[i] != b[i])
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return a[i] < b[i] ? -1 : 1;
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}
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return 0;
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}
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#define wmemchr wmemchr_simple
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inline const wchar_t *wmemchr_simple(const wchar_t *s, wchar_t c, size_t n)
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{
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size_t i = 0;
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for(; i < n; ++i)
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{
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if(s[i] == c)
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return s + i;
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}
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return NULL;
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}
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