C++ Comparison Operators

In C++, comparison operators are tools used to evaluate the relationship between two values. They are crucial for decision-making in programs, enabling logic-based operations like conditional statements and loops.

Boolean Return Values

When a comparison operator is used, the result is a boolean value:

• 1 represents true.
• 0 represents false.

This helps determine whether a specific condition is met.

Comparison Example

#include <iostream>
using namespace std;

int main() {
    int speed1 = 150;
    int speed2 = 120;

    cout << (speed1 > speed2);  // Returns 1 (true), because 150 is greater than 120

    return 0;
}

#include <iostream>

using namespace std;

​

int main() {

    int speed1 = 150;

    int speed2 = 120;

​

    cout << (speed1 > speed2);  // Returns 1 (true), because 150 is greater than 120

​

    return 0;

}

​

Common Comparison Operators

These operators allow programmers to compare values or variables, making logic-based decisions.

Real-Life Example in Programming

Comparison operators help evaluate and act based on conditions. For example:

#include <iostream>
using namespace std;

int main() {
    int horsepower1 = 500;
    int horsepower2 = 450;

    if (horsepower1 > horsepower2) {
        cout << "Bike 1 is more powerful.";
    } else {
        cout << "Bike 2 is more powerful.";
    }

    return 0;
}

#include <iostream>

using namespace std;

​

int main() {

    int horsepower1 = 500;

    int horsepower2 = 450;

​

    if (horsepower1 > horsepower2) {

        cout << "Bike 1 is more powerful.";

    } else {

        cout << "Bike 2 is more powerful.";

    }

​

    return 0;

}

​