C++ | Operator Overloading | Question 7

Output of following program?

#include <iostream>
using namespace std;
class Test2
{
    int y;
};

class Test
{
    int x;
    Test2 t2;
public:
    operator Test2 ()  { return t2; }
    operator int () { return x; }
};

void fun ( int x) { cout << "fun(int) called"; }
void fun ( Test2 t ) { cout << "fun(Test 2) called"; }

int main()
{
    Test t;
    fun(t);
    return 0;
}

(A) fun(int) called
(B) fun(Test 2) called
(C) Compiler Error: Ambiguous call to fun()


Answer: (C)

Explanation: The class Test has two conversion operators overloaded, int and Test2. And there are two fun() for int and Test2.

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