C++ The ?: Alternative to if- else

The ?: Alternative to if- else

The conditional operator (or Ternary operator) is an alternative for ‘if else statement’. The conditional operator that consists of two symbols (?:). It takes three arguments. The control flow of conditional operator is shown below

The syntax of the conditional operator is:

expression 1? expression 2 : expression 3

In the above syntax, the expression 1 is a condition which is evaluated, if the condition is true (Non-zero), then the control is transferred to expression 2, otherwise, the control passes to expression 3.

Illustration 10.7 – C++ program to find greatest of two numbers using conditional operator

#include <iostream>

using namespace std;

int main()

{

      int a, b, largest;

      cout << "\n Enter any two numbers: ";

      cin >> a >> b;

      largest = (a>b)? a : b;

      cout << "\n Largest number : " << largest;

      return 0;

}

Output:

Enter any two numbers: 12 98

Largest number : 98