Operator in C++ :-

C++ supports all of the operators provided by 'c' language and additionaly following

 
: :     Scope resolution operator

: :*       Pointer-to-member declarator

.*         Pointer-to-member opeator

-->*    Pointer to member operator

new        Memory allocation operator

delete     Memory release operator

endl       Line feed operator 


 :: Scope Resolution Operator (SRO):

The Scope Resolution Operator is used for qualitying
the scope of an entity.It takes the following general 
from 
             ::
              Class Name

If the scope name is not specified while using the Scope 
Resolution Operator its defaults to the global scope.

#include

int n=0;

void main()
{
int n=20
{

}

int x=n;
int n=30;

cout<<"\n"< . 

	p-->=20;	// --> 
}


::* Pointer to member declaretor

This operator is used for declering a pointer to the member of the class

class sample
{
	public:
		int x;
};

void main()
{
	int y;		// variable

	int *p		//pointer to integer

	p=&y;

	int sample::*q;	//pointer to integer member of class sample
}

.* pointer to member operator(using object name)

This operator is used to access the member of the class using an object name
and a pointer to member.

	class sample
	{
		public:
			int x;
	};

	void main()
	{
		sample s;	//object
	
		int sample ::*p;		

	// let 'p' point to 'x' data member of class 'sample'

		s.x=10;		//correct
		
		  or
		
		s.*p=10;	//correct
	
	
	}