2+3 and 5 are not equal In C

2+3 and 5 are not equal In C

what is the output of the program?

Example Program:

#define Square( X )  ( X * X )

void main( )
    {
        int value1,value2;
        value1 = Square( 2+ 3 );
        value2 = Square( 5 );

        if ( value1 == value2 )
            printf("Equal");
        else
            printf("Not Equal');
    }

Output:
    Not Equal.

Description:

The Macro replaces the code when there is necessity of the code.From the above program, we can able to understand the usage of Macro.

The value of value1 = 11.

The value of value2 = 25.

How ?

When the code Square(X) (X*X) replaces,we get,

Iteration 1:

value1= (2+3*2+3)

Therefore,value1=11.

Iteration 2:

value2= 5 * 5

Therefore,value2= 25.

Conclusion:

So, we come to a conclusion that 2+3 and 5 is not equal always.

And hence,the Macro should be used in appropriate situations,otherwise Macro will give wrong result.