How to set all bits of enum flag

Question

I wonder a generic way for setting all bits of enum flag to 1. I just would like to have an enum which returns for all comparisons, regardless of other enums.

And this code works;

[Flags] public enum SomeRightEnum : uint {     CanDoNothing = 0,     CanDoSomething = 1 << 0,     CanDoSomethingElse = 1 << 1,     CanDoYetAnotherThing = 1 << 2,     ...     DoEverything = 0xFFFFFFFF  } 

But at the code above since it is uint we set the number of "F"s, it wouldn't work if it was int.

So I'll appreciate a generic way of setting all bits of enum flag to 1, regardless of the datatype (int, int64, uint etc)

Answer 1

Easiest is probably:

enum Foo {   blah = 1,   ....   all = ~0 } 

For unsigned based enum:

enum Foo : uint {   blah = 1,   ....   all = ~0u; }