Question

The copy constructors can be used to ________

(a) Copy an object so that it can be passed to a class

(b) Copy an object so that it can be passed to a function

(c) Copy an object so that it can be passed to another primitive type variable

(d) Copy an object for type casting

The question was asked during a job interview.

The above asked question is from Copy Constructor topic in chapter Constructors and Destructors of Object Oriented Programming

Answer 1

The correct option is (b) Copy an object so that it can be passed to a function

The explanation is: When an object is passed to a function, actually its copy is made in the function. To copy the values, copy constructor is used. Hence the object being passed and object being used in function are different.