Using Bitwise operators on flags

Question

I have four flags

Current = 0x1  
Past = 0x2  
Future = 0x4  
All = 0x7

Say I receive the two flags Past and Future (setFlags(PAST

Answer 1

You may also want to add an extension method like this

  enum states {
     Current = 0x1,
     Past = 0x2,
     Future = 0x4,
     All = 0x7
  };

  static bool Is(this states current, states value) {
     return (current & value) == value;
  }

then you can do:

 if(state.Is(states.Past)) {
    // Past
 }