Can i explicitly call a destructor if i''ve allocated my , C/C++ Programming

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Can I explicitly call a destructor if I've allocated my object with new?


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3/15/2013 5:36:19 AM

A: perhaps not.        

 Unless you utilized placement new, you must simply delete the object instead of explicitly calling the destructor. For instance, suppose you allocated the object through a typical new expression:

Fred* p = new Fred();

Then the destructor Fred::~Fred() will auto magically get called while you delete it via:

delete p; // Automagically calls p->~Fred()

You must not explicitly call the destructor, as doing so won''t release the memory which was allocated for the Fred object itself. Remember: delete p does two things: first it calls the destructor and second it deallocates the memory.

 

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