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ImVector: fix undefined behaviour during copy operator if source vector is null. (#5608)

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Geoffrey McRae 2022-08-24 16:33:05 +10:00 committed by ocornut
parent 72096bf698
commit 2c1262b436
1 changed files with 1 additions and 1 deletions
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imgui.h
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@ -1765,7 +1765,7 @@ struct ImVector
// Constructors, destructor // Constructors, destructor
inline ImVector() { Size = Capacity = 0; Data = NULL; } inline ImVector() { Size = Capacity = 0; Data = NULL; }
inline ImVector(const ImVector<T>& src) { Size = Capacity = 0; Data = NULL; operator=(src); } inline ImVector(const ImVector<T>& src) { Size = Capacity = 0; Data = NULL; operator=(src); }
inline ImVector<T>& operator=(const ImVector<T>& src) { clear(); resize(src.Size); memcpy(Data, src.Data, (size_t)Size * sizeof(T)); return *this; } inline ImVector<T>& operator=(const ImVector<T>& src) { clear(); resize(src.Size); if (src.Data) memcpy(Data, src.Data, (size_t)Size * sizeof(T)); return *this; }
inline ~ImVector() { if (Data) IM_FREE(Data); } // Important: does not destruct anything inline ~ImVector() { if (Data) IM_FREE(Data); } // Important: does not destruct anything
inline void clear() { if (Data) { Size = Capacity = 0; IM_FREE(Data); Data = NULL; } } // Important: does not destruct anything inline void clear() { if (Data) { Size = Capacity = 0; IM_FREE(Data); Data = NULL; } } // Important: does not destruct anything