C Greater-Than Or Equal-To Operator (>=)

C Greater-Than Or Equal-To Operator

In C, the Greater-Than Or Equal-To >= operator is a comparison operator used to check whether the left operand is greater than or equal to the right operand. If the condition is true, it returns 1 (true); otherwise, it returns 0 (false).

The Greater-Than Or Equal-To >= operator is commonly used in conditional statements and loops to control program flow.

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Syntax of the Greater-Than Or Equal-To Operator

The syntax to use the Greater-Than Or Equal-To operator is:

variable1 >= variable2

Explanation:

1. variable1: The first operand to compare.
2. >=: The greater-than or equal-to comparison operator.
3. variable2: The second operand to compare with the first operand.

The result of the comparison is 1 (true) if variable1 is greater than or equal to variable2, otherwise 0 (false).

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Examples of the Greater-Than Or Equal-To Operator

1. Comparing Two Integers

In this example, we will compare two integer values using the Greater-Than Or Equal-To >= operator and print the result.

main.c

#include <stdio.h>

int main() {
    int a = 10, b = 5;

    if (a >= b) {
        printf("a is greater than or equal to b.\n");
    } else {
        printf("a is less than b.\n");
    }

    return 0;
}

Explanation:

1. We declare two integer variables a and b, initialized to 10 and 5.
2. The if condition checks if a >= b.
3. Since 10 >= 5 is true, the message “a is greater than or equal to b.” is printed.

Output:

a is greater than or equal to b.

2. Using Greater-Than Or Equal-To with User Input

In this example, we will take two numbers as input from the user and compare them using the Greater-Than Or Equal-To >= operator.

main.c

#include <stdio.h>

int main() {
    int num1, num2;

    // Taking user input
    printf("Enter first number: ");
    scanf("%d", &num1);
    printf("Enter second number: ");
    scanf("%d", &num2);

    // Checking condition
    if (num1 >= num2) {
        printf("%d is greater than or equal to %d.\n", num1, num2);
    } else {
        printf("%d is less than %d.\n", num1, num2);
    }

    return 0;
}

Explanation:

1. We declare two integer variables num1 and num2.
2. The user inputs values for num1 and num2 using scanf().
3. The if condition checks if num1 >= num2.
4. If true, it prints “num1 is greater than or equal to num2“. Otherwise, it prints “num1 is less than num2“.

Output (Example):

Enter first number: 8
Enter second number: 6
8 is greater than or equal to 6.

3. Using Greater-Than Or Equal-To in a Loop

In this example, we will use the Greater-Than Or Equal-To >= operator to control the termination of a loop.

main.c

#include <stdio.h>

int main() {
    int i = 5;

    // Loop runs while i is greater than or equal to 1
    while (i >= 1) {
        printf("i = %d\n", i);
        i--;
    }

    return 0;
}

Explanation:

1. We initialize an integer variable i to 5.
2. The while loop runs as long as i >= 1.
3. Inside the loop, i is printed and then decremented by 1.
4. The loop stops when i becomes less than 1.

Output:

i = 5
i = 4
i = 3
i = 2
i = 1

Conclusion

The Greater-Than Or Equal-To >= operator in C:

1. Checks if one value is greater than or equal to another.
2. Returns 1 if true, otherwise returns 0.
3. Used in conditions and loops to control program flow.