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Code blocks got an upgrade yesterday !
I think it enables c++11 by default .
(And uses the system default compiler anyway....)

#include<memory>

That's somewhat extreme!

Yes, as long you don't delete it.
If that is not what you intend, either don't use pointers or use a smart pointer, as said by the others.


Yes.

You have to allocate memory for the object.


b=new a();