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In C, a do-while loop is a control flow statement that allows you to repeatedly execute a block of code at least once, and then repeatedly as long as a certain condition is true. The syntax for a do-while loop is as follows:
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do {
// code to be executed
} while (condition);
The code inside the loop is executed at least once before the condition is checked, unlike a while loop, where the condition is checked before the first iteration. Then the condition
is a boolean expression that is evaluated after each iteration of the loop. If the condition is true, the code inside the loop is executed again, and the process is repeated. If the condition is false, the loop exits and the program execution continues with the next statement after the loop.
For example, the following code uses a do-while loop to print the numbers from 1 to 10:
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int i = 1;
do {
printf("%d ", i);
i++;
} while (i <= 10);
The loop variable i
is initialized to 1, then the do-while loop starts, it will execute at least once, printing the value of i
and then increment it. After the first iteration, it's compared with 10 in the do-while loop, and as long as it's
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