gistfile1.cpp

struct pair_hash {
    std::size_t operator()(std::pair<std::size_t, std::string> const& x) const {
        return x.first;
    }
};

struct pair_comp {
    bool operator()(std::pair<std::size_t, std::string> const& x, std::pair<std::size_t, std::string> const& y) const {
        return x.second = y.second;
    }
};

using member_table = std::unordered_map<std::pair<std::size_t, std::string>, object*, pair_hash, pair_comp>;