forked from OSchip/llvm-project
31 lines
818 B
C++
31 lines
818 B
C++
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// RUN: %clangxx_msan -O0 -g %s -o %t && not %run %t
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#include <assert.h>
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#include <locale.h>
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#include <sanitizer/msan_interface.h>
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#include <stdlib.h>
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#include <wchar.h>
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int main(void) {
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wchar_t q[10];
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size_t n = wcsxfrm(q, L"abcdef", sizeof(q) / sizeof(wchar_t));
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assert(n < sizeof(q));
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__msan_check_mem_is_initialized(q, (n + 1) * sizeof(wchar_t));
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locale_t loc = newlocale(LC_ALL_MASK, "", (locale_t)0);
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__msan_poison(&q, sizeof(q));
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n = wcsxfrm_l(q, L"qwerty", sizeof(q) / sizeof(wchar_t), loc);
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assert(n < sizeof(q));
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__msan_check_mem_is_initialized(q, (n + 1) * sizeof(wchar_t));
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q[0] = 'A';
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q[1] = '\x00';
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__msan_poison(&q, sizeof(q));
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wcsxfrm(NULL, q, 0);
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// CHECK: WARNING: MemorySanitizer: use-of-uninitialized-value
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// CHECK: in main {{.*}}wcsxfrm.cc:25
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return 0;
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}
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