Use the concept of operator overloading to overload unary ‘-‘ operator to negate value of variables.

Use the concept of operator overloading to overload unary ‘-‘ operator to negate value of variables.
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1 Answer

Answer :

# include <iostream.h>

#include<conio.h>

class unary

{

int x, y, z;

public:

void getdata (int a, int , int c);

void display (void);

void operator - (); // overload unary minus.

};

void unary :: getdata (int a, int b, int c)

{

x = a;

y = b;

z = c;

}

void unary :: display (void)

{

cout<< x << " " << y << " " << z << "\n";

}

void unary ::operator - ()

{

x = -x ;

y = -y ;

z = -z ;

}

main ( )
{
clrscr();
unary u;
u.getdata(20, -30, 40);
cout<< " u : " ;
u. display ( ) ;
-u;
cout<< " u : " ;
u. display ( ) ;
}
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