TIOBE - C Coding Standard

Guideline: 9.4.2#3

Synopsis:	The default clause should be the last entry in the switch statement.
Language:	C
Severity Level:	4
Category:	STATEMENTS

Description:

Since the default action is a 'catch-all' it aids the reader to enumerate the possible special cases before the general case.

Example:

switch( a )
{
    default:
        break; /* WRONG - default clause not last */
    case 'c':
        j = 4;
        break;
    case 'd':
        break;
}

Example:

switch( a )
{
    case 'c':
        j = 4;
        break;
    case 'd':
        break;
    default:
        break; /* RIGHT - default clause last */
}