The 'This' keyword

The member's functions of each object have access to a sort of magic pointer named this that points to the object itself. Therefore any member function could search out the address of the object of that it is a member.

Example:

// demonstration of this key word

# include<iostream.h>

class sample

{

private:

char chararra[10];

public:

};

void reveal( )

cout<<"my object's address is "<< this;

void main( )

{

sample s1,s2,s3;

s1.reveal( );

s2.reveal( );

s3.reveal( );

}

The program main( ) in this instance creates three objects of type sample, then asks every object to print its address, by using the reveal( ) member function. Given function prints out the value of the pointer.

Output is

my object's address is 0x8f5effec

my object's address is ox8f5effec

my object's address is ox8f5effec