Method operator()

tests/ordered_map_tests.cpp:1481–1487

  // 'x-1'. Make sure that KeyEqual is called (and not ==).
  struct hash {
    std::size_t operator()(std::uint64_t v) const {
      if (v % 2u == 1u) {
        return std::hash<std::uint64_t>()(v - 1);
      } else {
        return std::hash<std::uint64_t>()(v);
      }
    }
  };

  struct key_equal {