C# Enum Flags Comparison

Question

Given the following flags,

  [Flags]
    public enum Operations
    {
        add = 1,
        subtract = 2,
        multiply = 4,
        divide = 8,
        ev         


        

Answer 1

Duplicate:

See How to Compare Flags in C#?

C# 4 introduces the Enum.HasFlags() method.

However, see What is it that makes Enum.HasFlag so slow? if perfomance is an issue.