destructor on pointer of parent class

[Anand Vivek Srivastava]

is this wrong? if yes, how bad is it? class B extends class A. each has a virtual destructor.

A* a = new B();
delete a;

by how bad I mean is the loss only in form of memory leak or could this lead to memory corruption?

[led mike]

avsrivastava wrote:

each has a virtual destructor.

Then their is no problem ~B will be called first and then ~A.

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led mike

[Jun Du]

No, it's fine. In this case, B's destructor doesn't have to be virtual; only the base class needs to be.

Best, Jun

[Anand Vivek Srivastava]

thanks both of you, got the point. makes me wonder how people would have managed to code if there was no dynamic dispatch. :)