LeechCraft  0.6.70-13729-g7046a9d2a7
Modular cross-platform feature rich live environment.
bitflags.h
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29 
30 #pragma once
31 
32 #include <type_traits>
33 
34 namespace LC
35 {
36 namespace Util
37 {
38  template<typename T>
39  class BitFlags
40  {
41  static_assert (std::is_enum<T>::value, "The instantiating type should be a enumeration");
42 
43  using St_t = std::underlying_type_t<T>;
44  St_t Storage_ = 0;
45  public:
46  BitFlags () = default;
47 
48  BitFlags (T t)
49  : Storage_ { static_cast<St_t> (t) }
50  {
51  }
52 
53  explicit operator bool () const
54  {
55  return Storage_;
56  }
57 
59  {
60  Storage_ &= other.Storage_;
61  return *this;
62  }
63 
65  {
66  Storage_ |= other.Storage_;
67  return *this;
68  }
69 
70  friend BitFlags operator& (BitFlags left, BitFlags right)
71  {
72  left &= right;
73  return left;
74  }
75 
76  friend BitFlags operator| (BitFlags left, BitFlags right)
77  {
78  left |= right;
79  return left;
80  }
81  };
82 }
83 }
84 
85 #define DECLARE_BIT_FLAGS(F) \
86  inline LC::Util::BitFlags<F> operator& (F left, F right) \
87  { \
88  return LC::Util::BitFlags<F> { left } & right; \
89  } \
90  inline LC::Util::BitFlags<F> operator| (F left, F right) \
91  { \
92  return LC::Util::BitFlags<F> { left } | right; \
93  }
BitFlags & operator|=(BitFlags other)
Definition: bitflags.h:64
friend BitFlags operator &(BitFlags left, BitFlags right)
Definition: bitflags.h:70
friend BitFlags operator|(BitFlags left, BitFlags right)
Definition: bitflags.h:76
Definition: constants.h:35
BitFlags & operator &=(BitFlags other)
Definition: bitflags.h:58