mirror of
https://github.com/ApfelTeeSaft/reactos.git
synced 2026-08-26 19:33:31 +00:00
Katayama Hirofumi MZ
0572d36024
JIRA issue: CORE-20617 @learn-more found #9157 breaks the build as follows: > error C2220: the following warning is treated as an error > warning C4163: 'strncmp': not available as an intrinsic function > warning C4163: 'strncpy': not available as an intrinsic function _MSC_VER=1932 was not the version that the intrinsic functions (strncmp, strncpy, wcsncmp, wcsncpy) added. Using Compiler Explorer could detect the correct version: _MSC_VER=1950.
45 lines
933 B
C++
45 lines
933 B
C++
//
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// wcsncmp.cpp
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//
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//
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// Defines wcsncmp(), which compares two wide character strings, determining
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// their ordinal order. The function tests at most 'count' characters.
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//
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// Note that the comparison is performed with unsigned elements (wchar_t is
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// unsigned in this implementation), so the null character (0) is less than
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// all other characters.
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//
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// Returns:
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// * a negative value if a < b
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// * zero if a == b
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// * a positive value if a > b
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//
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#include <string.h>
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#if defined(_MSC_VER) && (defined(_M_ARM) || _MSC_VER >= 1950)
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#pragma function(wcsncmp)
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#endif
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extern "C" int __cdecl wcsncmp(
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wchar_t const* a,
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wchar_t const* b,
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size_t count
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)
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{
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if (count == 0)
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return 0;
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while (--count != 0 && *a && *a == *b)
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{
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++a;
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++b;
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}
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return static_cast<int>(*a - *b);
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}
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