tdlight/td/telegram/files/FileDbId.h
levlam 60e4d27011 Add strongly typed FileDbId.
GitOrigin-RevId: 234c9ec0ecda3f2ba48e0fd00fa06a8ec0188ca4
2019-01-06 23:39:10 +03:00

55 lines
1.1 KiB
C++

//
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2019
//
// 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 <type_traits>
namespace td {
class FileDbId {
uint64 id = 0;
public:
FileDbId() = default;
FileDbId(uint64 file_db_id) : id(file_db_id) {
}
template <class T1, typename = std::enable_if_t<std::is_convertible<T1, uint64>::value>>
FileDbId(T1 file_db_id) = delete;
bool empty() const {
return id == 0;
}
bool is_valid() const {
return id > 0;
}
uint64 get() const {
return id;
}
bool operator<(const FileDbId &other) const {
return id < other.id;
}
bool operator>(const FileDbId &other) const {
return id > other.id;
}
bool operator==(const FileDbId &other) const {
return id == other.id;
}
bool operator!=(const FileDbId &other) const {
return id != other.id;
}
};
} // namespace td