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[libc] wmemcmp nullptr handling #142058

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Merged
merged 6 commits into from
May 30, 2025
Merged

[libc] wmemcmp nullptr handling #142058

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24f44ad
[libc] wmemcmp nullptr handling
May 29, 2025
7aadafc
Merge remote-tracking branch 'upstream/main' into wmemcmp-nullptr
May 29, 2025
cb2c89e
Merge branch 'main' into wmemcmp-nullptr
sribee8 May 30, 2025
03a931c
Merge branch 'main' into wmemcmp-nullptr
sribee8 May 30, 2025
86853d9
added null_check to depends and death tests
May 30, 2025
d82fcf1
Added if defined for null check
May 30, 2025
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3 changes: 3 additions & 0 deletions libc/src/wchar/wmemcmp.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -12,11 +12,14 @@
#include "hdr/types/wchar_t.h"
#include "src/__support/common.h"
#include "src/__support/macros/config.h"
#include "src/__support/macros/null_check.h" // LIBC_CRASH_ON_NULLPTR

namespace LIBC_NAMESPACE_DECL {

LLVM_LIBC_FUNCTION(int, wmemcmp,
(const wchar_t *s1, const wchar_t *s2, size_t n)) {
LIBC_CRASH_ON_NULLPTR(s1);
LIBC_CRASH_ON_NULLPTR(s2);
for (size_t i = 0; i < n; ++i) {
if (s1[i] != s2[i])
return (int)(s1[i] - s2[i]);
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