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10.2.4 Switch Statement Symbols

Switch statements have their own set of syntactic symbols. Here’s an example:

 1: void spam( enum Ingredient i )
 2: {
 3:     switch( i ) {
 4:     case Ham:
 5:         be_a_pig();
 6:         break;
 7:     case Salt:
 8:         drink_some_water();
 9:         break;
10:     default:
11:         {
12:             what_is_it();
13:             break;
14:         }
15:     }
14: }

Here, lines 4, 7, and 10 are all assigned case-label syntax, while lines 5 and 8 are assigned statement-case-intro. Line 11 is treated slightly differently since it contains a brace that opens a block — it is given statement-case-open syntax.