copy constructor

From: Kittu (teehighest_at_gmail.com)
Date: 12/02/04

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Date: 2 Dec 2004 05:57:06 -0800

In which situations, we need to overload copy constructors? What is
exactly practical and theoritically difference between using copy
constructor and assignment operator? Please give the complete answer
in detail as I am not getting satisfactory answer regarding this.

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