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Alex Rivera
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C++ allows overloading operator new - both global and per-class - usual operator new , operator new[] used with new[] statement and placement operator new separately. The former two of those three are usually overloaded for using customized allocators and adding tracing. But placement operator new seems pretty straightforward - it actually does nothing inside. For example, in Visual C++ the default implementation just returns the address passed into the call: //from new.h inline void* operator new( size_t, void* where ) { return where; } What else could it do? Why and how could I sensibly overload placement operator new ?
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