Iteration statement cont.

• do statement

syntax:

• do <statement>
• while ( <expression> )
• <next statement>

semantic:

• a variant of while statement, instead of making its test at the top of the loop, it makes it at the bottom.

example:

• /* as long as a nonpositive integer is entered, the user will be notified with a error message; control will exit the loop only after a positive integer has been enter */
  do
  { printf("Input a positive integer: ");
  scanf("%d",&n);
  if (error = (n <= 0))
  printf("\nError: Negative value not entered\n");
  } while (error)

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