Loop in c

[amaresh92]

Main Question or Discussion Point

greetings,
what is the meaning of controlled loop and count controlled loop?
advanced thanks.

 

[Mark44]

First off, here's an uncontrolled loop (also called an infinite loop).

while (1)
{
  // do something
}

Here's an example of a controlled loop.

while (response != 'Y' && response != 'y')
{
  printf("Do you want to continue?");
  response = getch();
}

The loop above is controlled, but there is no way of knowing how many times it will run.

Finally, here is a count-controlled loop.

i = 0;
while (i < 5)
{
  printf("%d\n", i);
  i++;
}

This loop will run 5 times, and prints
0
1
2
3
4