// // Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2020 // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) // #pragma once #include "td/utils/common.h" #include "td/utils/StringBuilder.h" #include <functional> #include <type_traits> namespace td { class PollId { int64 id = 0; public: PollId() = default; explicit PollId(int64 poll_id) : id(poll_id) { } template <class T, typename = std::enable_if_t<std::is_convertible<T, int64>::value>> PollId(T poll_id) = delete; int64 get() const { return id; } bool operator==(const PollId &other) const { return id == other.id; } bool operator!=(const PollId &other) const { return id != other.id; } bool is_valid() const { return id != 0; } }; struct PollIdHash { std::size_t operator()(PollId poll_id) const { return std::hash<int64>()(poll_id.get()); } }; inline StringBuilder &operator<<(StringBuilder &string_builder, PollId poll_id) { return string_builder << "poll " << poll_id.get(); } } // namespace td