| 1 | // RUN: %clangxx_msan -O0 -g %s -o %t && not %run %t |
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| 2 | |
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| 3 | #include <assert.h> |
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| 4 | #include <locale.h> |
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| 5 | #include <sanitizer/msan_interface.h> |
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| 6 | #include <stdlib.h> |
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| 7 | #include <wchar.h> |
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| 8 | |
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| 9 | int main(void) { |
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| 10 | wchar_t q[10]; |
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| 11 | size_t n = wcsxfrm(s1: q, s2: L"abcdef" , n: sizeof(q) / sizeof(wchar_t)); |
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| 12 | assert(n < sizeof(q)); |
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| 13 | __msan_check_mem_is_initialized(x: q, size: (n + 1) * sizeof(wchar_t)); |
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| 14 | |
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| 15 | locale_t loc = newlocale(LC_ALL_MASK, locale: "" , base: (locale_t)0); |
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| 16 | |
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| 17 | __msan_poison(a: &q, size: sizeof(q)); |
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| 18 | n = wcsxfrm_l(s1: q, s2: L"qwerty" , n: sizeof(q) / sizeof(wchar_t), loc: loc); |
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| 19 | assert(n < sizeof(q)); |
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| 20 | __msan_check_mem_is_initialized(x: q, size: (n + 1) * sizeof(wchar_t)); |
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| 21 | |
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| 22 | q[0] = 'A'; |
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| 23 | q[1] = '\x00'; |
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| 24 | __msan_poison(a: &q, size: sizeof(q)); |
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| 25 | wcsxfrm(NULL, s2: q, n: 0); |
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| 26 | |
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| 27 | // CHECK: WARNING: MemorySanitizer: use-of-uninitialized-value |
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| 28 | // CHECK: in main {{.*}}wcsxfrm.cpp:25 |
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| 29 | return 0; |
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| 30 | } |
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| 31 | |
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