external/bsd/libc++/dist/libcxx/test/containers/Emplaceable.h

   1 #ifndef EMPLACEABLE_H
   2 #define EMPLACEABLE_H
   3
   4 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
   5
   6 class Emplaceable
   7 {
   8     Emplaceable(const Emplaceable&);
   9     Emplaceable& operator=(const Emplaceable&);
  10
  11     int int_;
  12     double double_;
  13 public:
  14     Emplaceable() : int_(0), double_(0) {}
  15     Emplaceable(int i, double d) : int_(i), double_(d) {}
  16     Emplaceable(Emplaceable&& x)
  17         : int_(x.int_), double_(x.double_)
  18             {x.int_ = 0; x.double_ = 0;}
  19     Emplaceable& operator=(Emplaceable&& x)
  20         {int_ = x.int_; x.int_ = 0;
  21          double_ = x.double_; x.double_ = 0;
  22          return *this;}
  23
  24     bool operator==(const Emplaceable& x) const
  25         {return int_ == x.int_ && double_ == x.double_;}
  26     bool operator<(const Emplaceable& x) const
  27         {return int_ < x.int_ || (int_ == x.int_ && double_ < x.double_);}
  28
  29     int get() const {return int_;}
  30 };
  31
  32 namespace std {
  33
  34 template <>
  35 struct hash<Emplaceable>
  36     : public std::unary_function<Emplaceable, std::size_t>
  37 {
  38     std::size_t operator()(const Emplaceable& x) const {return x.get();}
  39 };
  40
  41 }
  42
  43 #endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
  44
  45 #endif  // EMPLACEABLE_H