reverse_comparator.hpp
| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | #pragma once | ||
| 2 | |||
| 3 | #include <functional> | ||
| 4 | #include <utility> | ||
| 5 | |||
| 6 | namespace wala { | ||
| 7 | |||
| 8 | template <typename F> struct reverse_comparator_t { | ||
| 9 | F f; | ||
| 10 | 40 | template <typename Arg1, typename Arg2> constexpr bool operator() (Arg1&& arg1, Arg2&& arg2) & { | |
| 11 | 40 | return f(std::forward<Arg2>(arg2), std::forward<Arg1>(arg1)); | |
| 12 | } | ||
| 13 | ✗ | template <typename Arg1, typename Arg2> constexpr bool operator() (Arg1&& arg1, Arg2&& arg2) const& { | |
| 14 | ✗ | return f(std::forward<Arg2>(arg2), std::forward<Arg1>(arg1)); | |
| 15 | } | ||
| 16 | ✗ | template <typename Arg1, typename Arg2> constexpr bool operator() (Arg1&& arg1, Arg2&& arg2) && { | |
| 17 | ✗ | return std::move(f)(std::forward<Arg2>(arg2), std::forward<Arg1>(arg1)); | |
| 18 | } | ||
| 19 | ✗ | template <typename Arg1, typename Arg2> constexpr bool operator() (Arg1&& arg1, Arg2&& arg2) const&& { | |
| 20 | ✗ | return std::move(f)(std::forward<Arg2>(arg2), std::forward<Arg1>(arg1)); | |
| 21 | } | ||
| 22 | }; | ||
| 23 | |||
| 24 | ✗ | template <typename F> constexpr reverse_comparator_t<std::decay_t<F>> reverse_comparator(F&& f) { | |
| 25 | ✗ | return { std::forward<F>(f) }; | |
| 26 | } | ||
| 27 | |||
| 28 | } // namespace wala | ||
| 29 |