Method set

common/unordered_inline_set.h:130–130

        const T* operator->() const { return  _a->get(_i); }
        template<typename P>
        void set(P&& x)             { _a->set(_i, std::forward<P>(x)); }
        bool operator==(const iterator& rhs) const {
            return _a == rhs._a && _i == rhs._i;
        }