Cpp Do While Loop

C++ do while loop

Created By: chatGPT

In C++, a do while loop is used to execute a block of code at least once and then repeat the execution as long as a specified condition is true. Unlike the regular while loop, the condition is evaluated after the loop's body is executed. This ensures that the statements inside the loop run at least one time regardless of the condition's truthiness at the start.

int main() {
    int count = 0;
    do {
        std::cout << "Count: " << count << std::endl;
        count++;
    } while (count < 5);
    return 0;
}

In the example above, a variable count is initialized to 0. The do block prints the current value of count, then increments it. The loop continues until count reaches 5. As a result, the output will display the values 0 through 4.

// Output:
// Count: 0
// Count: 1
// Count: 2
// Count: 3
// Count: 4

It is important to ensure the condition in the do while loop will eventually become false; otherwise, you might create an infinite loop. This can lead to high resource consumption and unresponsive programs. Maintaining logical control of the loop's terminating condition is crucial in programming.

while (true) {
    // This will run forever
}