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2866514570
Add another test for strlen, that tests, whether the direction flag in ELFAGS has been modified. While clearing it is legitimate to do according to the ABI, the native implementation does not change it, so we don't want to do it either. svn path=/trunk/; revision=70429
70 lines
1.5 KiB
C
70 lines
1.5 KiB
C
/*
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* PROJECT: ReactOS api tests
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* LICENSE: GPLv2+ - See COPYING in the top level directory
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* PURPOSE: Test for strlen
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* PROGRAMMER: Timo Kreuzer <timo.kreuzer@reactos.org>
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*/
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#include <apitest.h>
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#include <stdio.h>
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#include <tchar.h>
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#include <pseh/pseh2.h>
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#include <ntstatus.h>
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typedef _Return_type_success_(return >= 0) long NTSTATUS, *PNTSTATUS;
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#ifdef __GNUC__
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#pragma GCC diagnostic ignored "-Wnonnull"
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size_t
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GCC_builtin_strlen(const char *str)
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{
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return __builtin_strlen(str);
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}
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#endif
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#define EFLAGS_DF 0x400L
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typedef size_t (*PFN_STRLEN)(const char *);
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void
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Test_strlen(PFN_STRLEN pstrlen)
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{
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size_t len;
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#if defined(_M_IX86) || defined(_M_AMD64)
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volatile uintptr_t eflags;
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char *teststr = "a\0bcdefghijk";
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#endif
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/* basic parameter tests */
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StartSeh()
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len = pstrlen(NULL);
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EndSeh(STATUS_ACCESS_VIOLATION);
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(void)len;
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ok_int((int)pstrlen("test"), 4);
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#if defined(_M_IX86) || defined(_M_AMD64)
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eflags = __readeflags();
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__writeeflags(eflags | EFLAGS_DF);
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len = pstrlen(teststr + 4);
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eflags = __readeflags();
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ok((eflags & EFLAGS_DF) != 0, "Direction flag in ELFAGS was changed.");
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/* Only test this for the exported versions, intrinsics might do it
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differently. It's up to us to not do fishy stuff! */
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if (pstrlen == strlen)
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{
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ok(len == 8, "Should not have gone backwards (got len %i)", (int)len);
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}
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#endif
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}
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START_TEST(strlen)
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{
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Test_strlen(strlen);
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#ifdef __GNUC__
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Test_strlen(GCC_builtin_strlen);
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#endif // __GNUC__
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}
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