C while Keyword
Example
Print the numbers 0 to 4:
int i = 0;
while (i < 5) {
printf("%d\n", i);
i++;
}
Try it
Yourself »
Definition and Usage
The while loop loops through a block of code as long as a specified
condition is true.
Note: Do not forget to increase the variable used in the condition, otherwise the loop will never end!
More Examples
The do/while loop is a variant of the while
loop. This loop will execute the code block once, before checking if the condition is true, then it will
repeat the loop as long as the condition is true:
Example
Print the numbers 0 to 4:
int i = 0;
do {
printf("%d\n", i);
i++;
}
while (i < 5);
Try
it Yourself »
Related Pages
Read more about while loops in our C While Loop Tutorial.
Read more about do/while loops in our C Do/While Loop Tutorial.