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C++ 'Or' Keyword With Example

Prashant | Wed, 05 Aug, 2020 | 103

CPP 'or' Keyword with Example

"or" is an inbuilt keyword that has been around since at least C++98. It is an alternative to || (Logical OR) operator and it mostly uses with the conditions.

The or keyword returns 1 if the result of at least one operand is 1, and it returns 0 if all operands result is 0.

Syntax:

    operand_1 or operand_2;

Here, operand_1 and operand_2 are the operands.

Example:

    Input:
    a = 10;
    b = 20;
    
    result = (a==10 or b==30);

    Output:
    result = 1

C++ example to demonstrate the use of "or" keyword

// C++ example to demonstrate the use of 
// 'or' operator.

#include <iostream>
using namespace std;

int main()
{
    int num = 20;

    if (num >= 10 or num <= 50)
        cout << "true\n";
    else
        cout << "false\n";

    if (num >= 20 or num <= 50)
        cout << "true\n";
    else
        cout << "false\n";

    if (num > 50 or num <= 100)
        cout << "true\n";
    else
        cout << "false\n";

    return 0;
}

Output:

true
true
true

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