| #ifndef EMPLACEABLE_H |
| #define EMPLACEABLE_H |
| |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| |
| class Emplaceable |
| { |
| Emplaceable(const Emplaceable&); |
| Emplaceable& operator=(const Emplaceable&); |
| |
| int int_; |
| double double_; |
| public: |
| Emplaceable() : int_(0), double_(0) {} |
| Emplaceable(int i, double d) : int_(i), double_(d) {} |
| Emplaceable(Emplaceable&& x) |
| : int_(x.int_), double_(x.double_) |
| {x.int_ = 0; x.double_ = 0;} |
| Emplaceable& operator=(Emplaceable&& x) |
| {int_ = x.int_; x.int_ = 0; |
| double_ = x.double_; x.double_ = 0; |
| return *this;} |
| |
| bool operator==(const Emplaceable& x) const |
| {return int_ == x.int_ && double_ == x.double_;} |
| bool operator<(const Emplaceable& x) const |
| {return int_ < x.int_ || (int_ == x.int_ && double_ < x.double_);} |
| |
| int get() const {return int_;} |
| }; |
| |
| namespace std { |
| |
| template <> |
| struct hash<Emplaceable> |
| : public std::unary_function<Emplaceable, std::size_t> |
| { |
| std::size_t operator()(const Emplaceable& x) const {return x.get();} |
| }; |
| |
| } |
| |
| #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| |
| #endif // EMPLACEABLE_H |
