Understanding do...while loop in C

What is a do...while Loop?

The do...while loop is an exit-controlled loop — its body executes at least once before the condition is checked.

Syntax

do {
    // statements
} while (condition);

Example

int i = 1;
do {
    printf("%d ", i);
    i++;
} while (i <= 5);
// Output: 1 2 3 4 5

do...while vs while

Unlike a while loop, a do...while loop always runs its body at least once, even if the condition is false from the start.