The DO keyword.

        main()
        {
          int i=5;

          do
          {
            printf(" i is %d\n", i);
          }
          while(--i);
        }

The program result will look like this:

 		i is 5
 		i is 4
 		i is 3
 		i is 2
 		i is 1

The main difference between do and while is the time that expression is evaluated.

• do performs the first test AFTER the first iteration.
• while performs the first test BEFORE the first iteration.

Examples:

Basic do.

See also:

• while keyword.
• for keyword.
• break keyword.
• continue keyword.