FlexTrade Interview Question for Software Engineer / Developers






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of 1 vote

To ensure that proper destructor is called through base pointer goes out of scope.

- netappreject July 28, 2010 | Flag Reply
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of 0 vote

hey @anonymous (the one who posted the question) - Was this a part of the online exam (16 Q's - 30 mins)?

I too have to give one.

- gradStudent July 28, 2010 | Flag Reply
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of 0 vote

In particular, here's when you need to make your destructor virtual:

* if someone will derive from your class,
* and if someone will say new Derived, where Derived is derived from your class,
* and if someone will say delete p, where the actual object's type is Derived but the pointer p's type is your class.


More info : www parashift com/c++-faq-lite/virtual-functions.html#faq-20.7

- AgnelCodes July 28, 2010 | Flag Reply


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