C++ | Constructors | Question 16
Predict the output of following program?
#include <iostream>
using namespace std;
class Test
{
private :
int x;
public :
Test( int i)
{
x = i;
cout << "Called" << endl;
}
};
int main()
{
Test t(20);
t = 30;
return 0;
}
|
(A) Compiler Error
(B)
Called
Called
(C)
Called
Answer: (B)
Explanation: If a class has a constructor which can be called with a single argument, then this constructor becomes conversion constructor because such a constructor allows automatic conversion to the class being constructed.
A conversion constructor can be called anywhere when the type of single argument is assigned to the object. The output of the given program is
Called
Called
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Last Updated :
28 Jun, 2021
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