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