When ANSI strictness is off, CodeWarrior C allows ranges of values in a switch statement by using a special form of case statement. A case statement that uses a range is a shorter way of specifying consecutive case statements that span a range of values. Listing 3.8 shows an example.

The range form of a case statement is

where low is a valid case expression that is less than high, which is also a valid case expression. A case statement that uses a range is applied when the switch statement's expression is equal to or greater than the low expression while being equal to or less than the high expression.

switch (i)
{
  case 0  ...  2: /* Equivalent to case 0: case 1: case 2: */
    j = i * 2;
    break;
  case 3:
    j = i;
    break;
  default:
    j = 0;
    break;
}