Conditional Operator

A ternary operator is one which contains three operands. The only ternary operator available in C language is conditional operator pair "?:". It is the form of C++ Conditional ? : Operator:

exp1 ? exp2 : exp3 ;

This operator works as follows. Exp1 is evaluated first. If the result is true then exp2 is executed, otherwise exp3 is executed.

e.g.:         a = 10;

                b = 15;

                x = (a > b ? a: b)

In this expression value of b will be assigned to x.

C++ program to demonstrate the Conditional? : Operator

#include <iostream>

using namespace std;

int main (){

    int a, b;

    cout << "Please enter the value of a and b." << endl;

    cout << "a" << setw (3) << ": ";

    cin >> a;

    cout << "b" << setw (2) << ": ";

    cin >> b;

    string message = a > b ? "a is larger than b" : "a is smaller than or equal to b";

    cout << Result << endl;

    return 0;

}

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