How default ” = ” operator and copy constructor is used and why we need to use them explicitlyques

Question

Accepted Answer

The default = operator and copy constructor are used to assign values and create copies of objects.

The default = operator is used to assign the values of one object to another object of the same class.
The copy constructor is used to create a new object by copying the values of an existing object.
Explicitly defining these functions is necessary when the default behavior is not sufficient or when the class contains dynamically allocated memory.
For example, if a class has a pointer member variable, the default = operator and copy constructor will only copy the pointer value, not the actual data. In such cases, explicit implementation is needed to perform a deep copy.

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