1 /*
2 * Bittorrent Client using Qt and libtorrent.
3 * Copyright (C) 2016 Mike Tzou
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version 2
8 * of the License, or (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
18 *
19 * In addition, as a special exception, the copyright holders give permission to
20 * link this program with the OpenSSL project's "OpenSSL" library (or with
21 * modified versions of it that use the same license as the "OpenSSL" library),
22 * and distribute the linked executables. You must obey the GNU General Public
23 * License in all respects for all of the code used other than "OpenSSL". If you
24 * modify file(s), you may extend this exception to your version of the file(s),
25 * but you are not obligated to do so. If you do not wish to do so, delete this
26 * exception statement from your version.
27 */
28
29 #pragma once
30
31 #include <type_traits>
32 #include <QtGlobal>
33
34 #if (QT_POINTER_SIZE == 8)
35 #define QBT_APP_64BIT
36 #endif
37
38 const char C_TORRENT_FILE_EXTENSION[] = ".torrent";
39 const int MAX_TORRENT_SIZE = 100 * 1024 * 1024; // 100 MiB
40
41 template <typename T>
asConst(T & t)42 constexpr typename std::add_const<T>::type &asConst(T &t) noexcept { return t; }
43
44 // Forward rvalue as const
45 template <typename T>
asConst(T && t)46 constexpr typename std::add_const<T>::type asConst(T &&t) noexcept { return std::move(t); }
47
48 // Prevent const rvalue arguments
49 template <typename T>
50 void asConst(const T &&) = delete;
51
52 namespace List
53 {
54 // Replacement for the deprecated`QSet<T> QSet::fromList(const QList<T> &list)`
55 template <typename T>
toSet(const QList<T> & list)56 QSet<T> toSet(const QList<T> &list)
57 {
58 #if (QT_VERSION >= QT_VERSION_CHECK(5, 14, 0))
59 return {list.cbegin(), list.cend()};
60 #else
61 return QSet<T>::fromList(list);
62 #endif
63 }
64 }
65
66 namespace Vector
67 {
68 // Replacement for the deprecated `QVector<T> QVector::fromStdVector(const std::vector<T> &vector)`
69 template <typename T>
fromStdVector(const std::vector<T> & vector)70 QVector<T> fromStdVector(const std::vector<T> &vector)
71 {
72 #if (QT_VERSION >= QT_VERSION_CHECK(5, 14, 0))
73 return {vector.cbegin(), vector.cend()};
74 #else
75 return QVector<T>::fromStdVector(vector);
76 #endif
77 }
78 }
79