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71 lines
1.8 KiB
C
71 lines
1.8 KiB
C
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/*
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* PROJECT: ReactOS API tests
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* LICENSE: LGPL-2.1-or-later (https://spdx.org/licenses/LGPL-2.1-or-later)
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* PURPOSE: Tests for _mbsncmp
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* COPYRIGHT: Copyright 2024 Thomas Faber (thomas.faber@reactos.org)
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*/
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#include <apitest.h>
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#include <mbstring.h>
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#define WIN32_NO_STATUS
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#include <pseh/pseh2.h>
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#include <ndk/mmfuncs.h>
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/*
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* cmp functions can either return 1/-1 or the actual difference between the
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* first two differing characters.
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* On Win2003, both crtdll and msvcrt always return 1/-1.
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* On Win10, msvcrt returns the diff, crtdll returns 1/-1.
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*/
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#ifdef TEST_CRTDLL
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#define RETURN_DIFF 0
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#else
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#define RETURN_DIFF (GetVersion() >= 0x0600)
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#endif
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#define DIFF_RETURN(sign, absolute) (sign (RETURN_DIFF ? absolute : 1))
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START_TEST(_mbsncmp)
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{
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int ret;
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/* Zero length always returns true */
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ret = _mbsncmp(NULL, NULL, 0);
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ok(ret == 0, "ret = %d\n", ret);
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ret = _mbsncmp("a", "c", 0);
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ok(ret == 0, "ret = %d\n", ret);
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/* No null checks - length 1 crashes */
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StartSeh()
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(void)_mbsncmp("a", NULL, 1);
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EndSeh(STATUS_ACCESS_VIOLATION);
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StartSeh()
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(void)_mbsncmp(NULL, "c", 1);
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EndSeh(STATUS_ACCESS_VIOLATION);
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/* Strings longer than or equal to length */
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ret = _mbsncmp("a", "c", 1);
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ok(ret == DIFF_RETURN(-, 2), "ret = %d\n", ret);
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ret = _mbsncmp("a", "a", 1);
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ok(ret == 0, "ret = %d\n", ret);
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ret = _mbsncmp("ab", "aB", 1);
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ok(ret == 0, "ret = %d\n", ret);
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ret = _mbsncmp("aa", "ac", 2);
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ok(ret == DIFF_RETURN(-, 2), "ret = %d\n", ret);
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/* Length longer than one of the strings */
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ret = _mbsncmp("a", "ac", 2);
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ok(ret == DIFF_RETURN(-, 'c'), "ret = %d\n", ret);
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ret = _mbsncmp("aa", "a", 2);
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ok(ret == DIFF_RETURN(+, 'a'), "ret = %d\n", ret);
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ret = _mbsncmp("ab", "ab", 100);
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ok(ret == 0, "ret = %d\n", ret);
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}
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