C++ Comparison or Relational Operators for beginner to expert

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A relational operator is used to check the relationship between two operands. For example,

// checks if a is greater than b
a > b;

Here, > is a relational operator. It checks if a is greater than b or not.

If the relation is true, it returns 1 whereas if the relation is false, it returns 0.

OperatorMeaningExample
==Is Equal To3 == 5 gives us false
!=Not Equal To3 != 5 gives us true
>Greater Than3 > 5 gives us false
<Less Than3 < 5 gives us true
>=Greater Than or Equal To3 >= 5 give us false
<=Less Than or Equal To3 <= 5 gives us true

Example: Relational Operators

#include <iostream>
using namespace std;

int main() {
    int a, b;
    a = 3;
    b = 5;
    bool result;

    result = (a == b);   // false
    cout << "3 == 5 is " << result << endl;

    result = (a != b);  // true
    cout << "3 != 5 is " << result << endl;

    result = a > b;   // false
    cout << "3 > 5 is " << result << endl;

    result = a < b;   // true
    cout << "3 < 5 is " << result << endl;

    result = a >= b;  // false
    cout << "3 >= 5 is " << result << endl;

    result = a <= b;  // true
    cout << "3 <= 5 is " << result << endl;

    return 0;
}

Output

3 == 5 is 0
3 != 5 is 1
3 > 5 is 0
3 < 5 is 1
3 >= 5 is 0
3 <= 5 is 1

Note: Relational operators are used in decision-making and loops.

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