Question

In C++, casting operator function should satisfy, which of the following conditions?

I: It must be a member of a class

II: It must not specify a return type

III: It must not have any argument 

1. I and II only
2. I, II and III
3. I and III only 
4. II and II only

Answer 1

Correct Answer - Option 2 : I, II and III

A cast is a special operator that forces one data type to be converted into another. As an operator, a cast is unary and has the same precedence as any other unary operator.

Syntax

(type) expression

For Example

#include <iostream>

using namespace std;

main() {

double a = 19.07795;

float b = 8.054;

int m ;

m = (int) a;

cout << " (int)a is :" << m << endl ;

m = (int) b;

cout << " (int)b is :" << m << endl ;

return 0;

}

Output is

 (int)a is :19

 (int)b is :8