Question

Having studied the switch documentation and discovering it can only switch on integral types I set about looking for a definition. I can’t find one anywhere. I can only find a list of integral types.

I could take a guess that integral types are the types which are integrated into the language, however I’d be happier with a proper definition. Does anyone have one?

Answer 1

“Integral” refers to integer types (i.e. whole numbers). In C# this means types like int, long, short, etc.

Please see Integral Types Table (C# Reference):

The following table shows the sizes and ranges of the integral types, which constitute a subset of simple types.

Edit: Keep in mind that the switch statement supports literal strings as well.