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Kernel: Allow passing null pointer to delete
The C++ standard says that it's legal to call the `delete` operator with a null pointer argument, in which case it should be a no-op. I encountered this issue when running a kernel that's compiled with Clang. I assume this fact was used for some kind of optimization.
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sideshowbarker
2024-07-18 09:04:55 +09:00
Author: https://github.com/BertalanD
Commit: b847541ee8
Pull-request: https://github.com/SerenityOS/serenity/pull/8696
Reviewed-by: https://github.com/Dexesttp
Reviewed-by: https://github.com/gunnarbeutner ✅
Reviewed-by: https://github.com/networkException
2 changed files with 4 additions and 0 deletions
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@ -59,6 +59,8 @@ OwnPtr<KString> KString::try_clone() const
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void KString::operator delete(void* string)
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{
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if (!string)
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return;
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size_t allocation_size = sizeof(KString) + (sizeof(char) * static_cast<KString*>(string)->m_length) + sizeof(char);
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kfree_sized(string, allocation_size);
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}
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