OSX/libsecurity_translocate/lib/SecTranslocateEnumUtils.hpp

   1 //
   2 //  SecTranslocateEnumUtils.h
   3 //  Security
   4 //
   5 //
   6
   7 #ifndef SecTranslocateEnumUtils_h
   8 #define SecTranslocateEnumUtils_h
   9
  10 #include <type_traits>
  11
  12 template<typename Enum>
  13 Enum operator |(Enum lhs, Enum rhs)
  14 {
  15     static_assert(std::is_enum<Enum>::value,
  16                   "template parameter is not an enum type");
  17
  18     using underlying = typename std::underlying_type<Enum>::type;
  19
  20     return static_cast<Enum> (
  21         static_cast<underlying>(lhs) |
  22         static_cast<underlying>(rhs)
  23     );
  24 }
  25
  26 template<typename Enum>
  27 Enum operator &(Enum lhs, Enum rhs)
  28 {
  29     static_assert(std::is_enum<Enum>::value,
  30                   "template parameter is not an enum type");
  31
  32     using underlying = typename std::underlying_type<Enum>::type;
  33
  34     return static_cast<Enum> (
  35         static_cast<underlying>(lhs) &
  36         static_cast<underlying>(rhs)
  37     );
  38 }
  39
  40 #endif /* SecTranslocateEnumUtils_h */