Do Keyword

In C programming, the 'do' keyword is used to create a do-while loop.

The do-while loop is a type of loop structure that executes a block of code repeatedly until a certain condition is no longer true.

Here's an example of using the 'do' keyword to create a do-while loop:

int count = 1;
do {
  printf("Count: %d\n", count);
  count++;
} while (count <= 5);

    

In this example, the do-while loop is created using the 'do' keyword.

The block of code within the loop is executed first, and then the condition is checked. If the condition evaluates to true, the loop continues to execute.

In this case, the loop prints the value of 'count' and increments it until 'count' becomes greater than 5.

The do-while loop guarantees that the code block will be executed at least once, even if the condition is initially false.

This is because the condition is checked after the code block is executed.

The 'do' keyword is often used in scenarios where you want to perform a task at least once and then repeat it based on a condition.

It provides flexibility in controlling the flow of execution within the loop.