Hai...

I have some qutions in C++, Please can anybody clarify that?

1) How to control the Memory leaks in C++

2) How to Determine the function is a virtual function in the class(not using virtual key word)
3) When do we over ride the Copy constructor.

4) does memory and size is assigned to the 'this' operator?

5) What is the main Difference between distructor and virtual distructor?