Generic with T of value type

Question

Is it possible to define a generic class where T can belong only to value type (such as int, double and so on)?

Answer 1

yes, you need a struct constraint:

class OnlyStructs<T> where T : struct { }

But you should be aware of that this also allows user-defined structs, not just int,double etc.. Unfortunately there is no built-in way to restrict T for only specific types like where T : int,double,float.

Answer 2

Use struct in generic constraint where T : struct