How to remove an item for a OR'd enum?

Question

I have an enum like:

public enum Blah
{
    RED = 2,
    BLUE = 4,
    GREEN = 8,
    YELLOW = 16
}

Blah colors = Blah.RED | Blah.BLUE | Blah.YELLOW;
         


        

Answer 1

The other answers are correct, but to specifically remove blue from the above you would write:

colors &= ~Blah.BLUE;