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AK: Don't crash in HashTable::clear_with_capacity on an empty table

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When calling clear_with_capacity on an empty HashTable/HashMap, a null
deref would occur when trying to memset() m_buckets. Checking that it
has capacity before clearing fixes the issue.
This commit is contained in:
Zaggy1024 2022-11-10 19:54:43 -06:00 • committed by Andrew Kaster
parent 8f0fdef856
commit a1300d3797
2 changed files with 11 additions and 0 deletions
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2
AK/HashTable.h
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@ -291,6 +291,8 @@ public:
}
void clear_with_capacity()
{
if (m_capacity == 0)
return;
if constexpr (!Detail::IsTriviallyDestructible<T>) {
for (auto* bucket : *this)
bucket->~T();