C++ Interview Question and Answers : 4

16.	What are the few advantages of Inline function?
	It offers an improved macro facility. By using the inline functions, the user can split a large function with many nested modules of statement blocks into many small inline functions.

17.	What is copy constructor?
	Copy constructor is a constructor function with the same name as the class and used to make deep copy of objects.

18.	What is default constructor?
	A default constructor is a constructor that either has no parameters, or if it has parameters, all the parameters have default values.

19.	What is a scope resolution operator?
	The scope resolution operator permits a program to reference an identifier in the global scope that has been hidden by another identifier with the same name in the local scope.

20.	What is the difference between Object and Instance?
	An instance of a user-defined type is called an object. We can instantiate many objects from one class. An object is an instance of a class.

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