55 lines
1.1 KiB
C++
55 lines
1.1 KiB
C++
//
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// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2019
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#pragma once
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#include "td/utils/common.h"
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#include "td/utils/StringBuilder.h"
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#include <type_traits>
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namespace td {
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class FileDbId {
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uint64 id = 0;
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public:
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FileDbId() = default;
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FileDbId(uint64 file_db_id) : id(file_db_id) {
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}
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template <class T1, typename = std::enable_if_t<std::is_convertible<T1, uint64>::value>>
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FileDbId(T1 file_db_id) = delete;
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bool empty() const {
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return id == 0;
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}
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bool is_valid() const {
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return id > 0;
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}
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uint64 get() const {
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return id;
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}
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bool operator<(const FileDbId &other) const {
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return id < other.id;
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}
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bool operator>(const FileDbId &other) const {
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return id > other.id;
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}
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bool operator==(const FileDbId &other) const {
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return id == other.id;
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}
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bool operator!=(const FileDbId &other) const {
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return id != other.id;
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}
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};
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} // namespace td
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