C++

8.10    The “switch” Statement

You have already seen that you can use if-else cascades to check multiple cases in succession. The switch statement is a specialized form of the case where you always test the same expression, and the expression has an int-like type—or is an enum, as you will see in Chapter 16, Section 16.12.2:

switch( Expression ) { Cases }

Since C++17, it works analogously to if as well:

switch( Initialization ; Expression ) { Cases }

Where Cases consist of a sequence of cases of the following form:

case Constant: Statements

From the list of Cases, those Statements are executed whose Constant matches the result of the Expression. There are still some things to consider or that are worth knowing:

• Cases must not contain duplicate ...