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Kernel: KResultOr can use the same storage as the object for the error

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Since it can only hold either an object or an error code, we can share
the same storage to hold either.
This commit is contained in:
Tom 2021-02-07 15:30:23 -07:00 committed by Andreas Kling
parent 79bab28f5e
commit 1d843c46eb
Notes: sideshowbarker 2024-07-18 22:31:28 +09:00 
Author: https://github.com/tomuta
Commit: https://github.com/SerenityOS/serenity/commit/1d843c46eb6
Pull-request: https://github.com/SerenityOS/serenity/pull/5263
1 changed files with 4 additions and 2 deletions
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6
Kernel/KResult.h
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@ -172,8 +172,10 @@ public:
}
private:
alignas(T) char m_storage[sizeof(T)];
KResult m_error;
union {
alignas(T) char m_storage[sizeof(T)];
KResult m_error;
};
bool m_is_error { false };
bool m_have_storage { false };
};