Question

Switches seem so useless as they can be replaced with if-else statements, which can do much more than just match a char/int/enum etc. I can only think of one good use for a switch, and that would be for interpreting command line args.

What are some realistic uses for a switch statement?

Answer 1

There’s two reasons to use a switch vs if/else, in my mind:

• The compiler may be able to optimize for the switch better.
• The switch statement more clearly expresses the logic of the code better. Specifically, the idea that you’re taking a different branch depending on the value of something, rather than depending on more complicated logic. This is, by far, the more important reason to me.