Add clang-format and format code as in Frameworks

[dolphin.git] / src / kitemviews / private / kfileitemmodelsortalgorithm.h

diff --git a/src/kitemviews/private/kfileitemmodelsortalgorithm.h b/src/kitemviews/private/kfileitemmodelsortalgorithm.h
index 1d56894325ed968979cb31b92f5d44c0474dca4b..29c1fe5ac7ccfbc51a336ae9a715067fe2e92cc5 100644 (file)
--- a/src/kitemviews/private/kfileitemmodelsortalgorithm.h
+++ b/src/kitemviews/private/kfileitemmodelsortalgorithm.h
@@ -1,28 +1,15 @@
-/*****************************************************************************
- *   Copyright (C) 2012 by Peter Penz <peter.penz19@gmail.com>               *
- *   Copyright (C) 2012 by Emmanuel Pescosta <emmanuelpescosta099@gmail.com> *
- *   Copyright (C) 2013 by Frank Reininghaus <frank78ac@googlemail.com>      *
- *                                                                           *
- *   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 2 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, write to the                           *
- *   Free Software Foundation, Inc.,                                         *
- *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA              *
- *****************************************************************************/
+/*
+ * SPDX-FileCopyrightText: 2012 Peter Penz <peter.penz19@gmail.com>
+ * SPDX-FileCopyrightText: 2012 Emmanuel Pescosta <emmanuelpescosta099@gmail.com>
+ * SPDX-FileCopyrightText: 2013 Frank Reininghaus <frank78ac@googlemail.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 
 #ifndef KFILEITEMMODELSORTALGORITHM_H
 #define KFILEITEMMODELSORTALGORITHM_H
 
-#include <QtCore>
+#include <QtConcurrentRun>
 
 #include <algorithm>
 
@@ -31,16 +18,14 @@
  * worst-case of O(n * log(n)) and to keep the number of comparisons low.
  *
  * The implementation is based on qStableSortHelper() from qalgorithms.h
- * Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+ * SPDX-FileCopyrightText: 2011 Nokia Corporation and/or its subsidiary(-ies).
  */
 
-template <typename RandomAccessIterator, typename LessThan>
-static void mergeSort(RandomAccessIterator begin,
-                      RandomAccessIterator end,
-                      LessThan lessThan)
+template<typename RandomAccessIterator, typename LessThan>
+static void mergeSort(RandomAccessIterator begin, RandomAccessIterator end, const LessThan &lessThan)
 {
     // The implementation is based on qStableSortHelper() from qalgorithms.h
-    // Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+    // SPDX-FileCopyrightText: 2011 Nokia Corporation and/or its subsidiary(-ies).
 
     const int span = end - begin;
     if (span < 2) {
@@ -62,12 +47,9 @@ static void mergeSort(RandomAccessIterator begin,
  * The comparison function \a lessThan must be reentrant.
  */
 
-template <typename RandomAccessIterator, typename LessThan>
-static void parallelMergeSort(RandomAccessIterator begin,
-                              RandomAccessIterator end,
-                              LessThan lessThan,
-                              int numberOfThreads,
-                              int parallelMergeSortingThreshold = 100)
+template<typename RandomAccessIterator, typename LessThan>
+static void
+parallelMergeSort(RandomAccessIterator begin, RandomAccessIterator end, LessThan lessThan, int numberOfThreads, int parallelMergeSortingThreshold = 100)
 {
     const int span = end - begin;
 
@@ -75,7 +57,8 @@ static void parallelMergeSort(RandomAccessIterator begin,
         const int newNumberOfThreads = numberOfThreads / 2;
         const RandomAccessIterator middle = begin + span / 2;
 
-        QFuture<void> future = QtConcurrent::run(parallelMergeSort<RandomAccessIterator, LessThan>, begin, middle, lessThan, newNumberOfThreads, parallelMergeSortingThreshold);
+        QFuture<void> future =
+            QtConcurrent::run(parallelMergeSort<RandomAccessIterator, LessThan>, begin, middle, lessThan, newNumberOfThreads, parallelMergeSortingThreshold);
         parallelMergeSort(middle, end, lessThan, newNumberOfThreads, parallelMergeSortingThreshold);
 
         future.waitForFinished();
@@ -92,17 +75,14 @@ static void parallelMergeSort(RandomAccessIterator begin,
  * \a begin and \a end.
  *
  * The implementation is based on qMerge() from qalgorithms.h
- * Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+ * SPDX-FileCopyrightText: 2011 Nokia Corporation and/or its subsidiary(-ies).
  */
 
-template <typename RandomAccessIterator, typename LessThan>
-static void merge(RandomAccessIterator begin,
-                  RandomAccessIterator pivot,
-                  RandomAccessIterator end,
-                  LessThan lessThan)
+template<typename RandomAccessIterator, typename LessThan>
+static void merge(RandomAccessIterator begin, RandomAccessIterator pivot, RandomAccessIterator end, const LessThan &lessThan)
 {
     // The implementation is based on qMerge() from qalgorithms.h
-    // Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+    // SPDX-FileCopyrightText: 2011 Nokia Corporation and/or its subsidiary(-ies).
 
     const int len1 = pivot - begin;
     const int len2 = end - pivot;
@@ -113,7 +93,7 @@ static void merge(RandomAccessIterator begin,
 
     if (len1 + len2 == 2) {
         if (lessThan(*(begin + 1), *(begin))) {
-            qSwap(*begin, *(begin + 1));
+            std::swap(*begin, *(begin + 1));
         }
         return;
     }
@@ -124,12 +104,12 @@ static void merge(RandomAccessIterator begin,
     if (len1 > len2) {
         const int len1Half = len1 / 2;
         firstCut = begin + len1Half;
-        secondCut = std::lower_bound(pivot, end, *firstCut, lessThan);
+        secondCut = std::lower_bound<RandomAccessIterator, decltype(*firstCut), const LessThan &>(pivot, end, *firstCut, lessThan);
         len2Half = secondCut - pivot;
     } else {
         len2Half = len2 / 2;
         secondCut = pivot + len2Half;
-        firstCut = std::upper_bound(begin, pivot, *secondCut, lessThan);
+        firstCut = std::upper_bound<RandomAccessIterator, decltype(*secondCut), const LessThan &>(begin, pivot, *secondCut, lessThan);
     }
 
     std::rotate(firstCut, pivot, secondCut);
@@ -140,4 +120,3 @@ static void merge(RandomAccessIterator begin,
 }
 
 #endif
-