What is copy constructor with example?

When Copy Constructor is called Copy Constructor is called in the following scenarios: When we initialize the object with another existing object of the same class type . For example, Student s1 = s2, where Student is the class. When the object of the same class type is passed by value as an argument.

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Why is copy constructor used?

A constructor in C++ is used to initialize an object . A copy constructor is a member function of a class that initializes an object with an existing object of the same class. In other words, it creates an exact copy of an already existing object and stores it into a new object.

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