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[compiler-rt][asan][test] Make wchar tests more robust #163715

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Merged
merged 1 commit into from
Oct 16, 2025
Merged

[compiler-rt][asan][test] Make wchar tests more robust #163715

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6 changes: 4 additions & 2 deletions compiler-rt/test/asan/TestCases/wcscat.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -9,11 +9,13 @@
int main() {
const wchar_t *start = L"X means ";
const wchar_t *append = L"dog";
wchar_t goodDst[12];
wchar_t goodArray[12];
wchar_t *volatile goodDst = goodArray;
wcscpy(goodDst, start);
wcscat(goodDst, append);

wchar_t badDst[9];
wchar_t badArray[9];
wchar_t *volatile badDst = badArray;
wcscpy(badDst, start);
fprintf(stderr, "Good so far.\n");
// CHECK-DAG: Good so far.
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6 changes: 4 additions & 2 deletions compiler-rt/test/asan/TestCases/wcscpy.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -8,10 +8,12 @@

int main() {
const wchar_t *src = L"X means dog";
wchar_t goodDst[12];
wchar_t goodArray[12];
wchar_t *volatile goodDst = goodArray;
wcscpy(goodDst, src);

wchar_t badDst[7];
wchar_t badArray[7];
wchar_t *volatile badDst = badArray;
fprintf(stderr, "Good so far.\n");
// CHECK-DAG: Good so far.
fflush(stderr);
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6 changes: 4 additions & 2 deletions compiler-rt/test/asan/TestCases/wcsncat.cpp
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Expand Up @@ -9,11 +9,13 @@
int main() {
const wchar_t *start = L"X means ";
const wchar_t *append = L"dog";
wchar_t goodDst[15];
wchar_t goodArray[15];
wchar_t *volatile goodDst = goodArray;
wcscpy(goodDst, start);
wcsncat(goodDst, append, 5);

wchar_t badDst[11];
wchar_t badArray[11];
wchar_t *volatile badDst = badArray;
wcscpy(badDst, start);
wcsncat(badDst, append, 1);
fprintf(stderr, "Good so far.\n");
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6 changes: 4 additions & 2 deletions compiler-rt/test/asan/TestCases/wcsncpy.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -8,10 +8,12 @@

int main() {
const wchar_t *src = L"X means dog";
wchar_t goodDst[12];
wchar_t goodArray[12];
wchar_t *volatile goodDst = goodArray;
wcsncpy(goodDst, src, 12);

wchar_t badDst[7];
wchar_t badArray[7];
wchar_t *volatile badDst = badArray;
wcsncpy(badDst, src, 7); // This should still work.
fprintf(stderr, "Good so far.\n");
// CHECK-DAG: Good so far.
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