--- a/src/functional.h Tue Jun 28 19:36:03 2022 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,190 +0,0 @@
-/*
- * LDForge: LDraw parts authoring CAD
- * Copyright (C) 2020 Teemu Piippo
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#pragma once
-#include <algorithm>
-#include <functional>
-#include <QVector>
-#include <QSet>
-#include <QList>
-
-namespace fn
-{
- template<typename C>
- class InsertIterator;
-}
-
-/**
- * Like std::back_inserter but calls x.insert(v) instead
- */
-template<typename C>
-class fn::InsertIterator
-{
-public:
- InsertIterator(C& container) :
- container{container} {}
- auto operator*()
- {
- return *this;
- }
- auto operator++()
- {
- return *this;
- }
- auto operator++(int)
- {
- return *this;
- }
- template<typename T>
- auto operator=(T&& value)
- {
- this->container.insert(std::forward<T>(value));
- return *this;
- }
-private:
- C& container;
-};
-
-namespace fn
-{
- // Constructs a fn::InsertIterator
- template<typename C>
- InsertIterator<C> makeInsertIterator(C& container)
- {
- return InsertIterator<C>{container};
- }
-
- // Constructs a back_inserter for std::vector
- template<typename T>
- auto makeDefaultInserter(std::vector<T>& vec)
- {
- return std::back_inserter(vec);
- }
-
-#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
- // In Qt6 QVector is now a QList instead, so we need to disable this
- // Constructs a back_inserter for QVector
- template<typename T>
- auto makeDefaultInserter(QVector<T>& vec)
- {
- return std::back_inserter(vec);
- }
-#endif
-
- template<typename T>
- auto makeDefaultInserter(QList<T>& vec)
- {
- return std::back_inserter(vec);
- }
-
- // Constructs an fn::InsertIterator for QSet
- template<typename T>
- auto makeDefaultInserter(QSet<T>& vec)
- {
- return InsertIterator(vec);
- }
-
- // Changes the value type of C
- template<typename C, typename TT>
- struct ChangeContainerValueType
- {
- };
-
- // Changes the value type of std::vector
- template<typename T, typename TT>
- struct ChangeContainerValueType<std::vector<T>, TT>
- {
- using type = std::vector<TT>;
- };
-
-#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
- // Changes the value type of QVector
- template<typename T, typename TT>
- struct ChangeContainerValueType<QVector<T>, TT>
- {
- using type = QVector<TT>;
- };
-#endif
-
- // Changes the value type of QSet
- template<typename T, typename TT>
- struct ChangeContainerValueType<QSet<T>, TT>
- {
- using type = QSet<TT>;
- };
-
- // Changes the value type of QList
- template<typename T, typename TT>
- struct ChangeContainerValueType<QList<T>, TT>
- {
- using type = QList<TT>;
- };
-
- // Changes the value type of C
- template<typename C, typename TT>
- using ChangeContainerValueType_t = typename ChangeContainerValueType<C, TT>::type;
-
- /**
- * \brief Applies \c function to all elements of \c container
- * \param container Container to iterate
- * \param function Function to apply
- * \param Rt result type. If not provided, a suitable result type is deduced from inputs
- * \returns mapped result container
- */
- template<typename Rt = void, typename C, typename Fn>
- auto map(C&& container, Fn&& function)
- {
- using value_t = decltype(*std::declval<C>().begin());
- using newvalue_t = std::result_of_t<Fn(value_t)>;
- using result_t = std::conditional_t<
- std::is_same_v<Rt, void>,
- ChangeContainerValueType_t<std::remove_reference_t<C>, newvalue_t>,
- Rt>;
- result_t result;
- result.reserve(std::end(container) - std::begin(container));
- std::transform(std::begin(container), std::end(container), makeDefaultInserter(result), function);
- return result;
- }
-}
-
-template<typename T, typename Fn>
-bool any(T&& container, Fn&& f)
-{
- for (auto&& x : container)
- {
- if (f(x))
- {
- return true;
- }
- }
- return false;
-}
-
-
-template<typename T, typename Fn>
-bool all(T&& container, Fn&& f)
-{
- for (auto&& x : container)
- {
- if (not f(x))
- {
- return false;
- }
- }
- return true;
-}