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72 lines
1.6 KiB
C
72 lines
1.6 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! Also crtdll does
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not do it like this. */
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#ifndef TEST_CRTDLL
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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 // TEST_CRTDLL
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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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