diff options
Diffstat (limited to 'src/concurrent/qtconcurrentfilter.cpp')
| -rw-r--r-- | src/concurrent/qtconcurrentfilter.cpp | 54 |
1 files changed, 9 insertions, 45 deletions
diff --git a/src/concurrent/qtconcurrentfilter.cpp b/src/concurrent/qtconcurrentfilter.cpp index 2bec2a6eb9..35141d2d7e 100644 --- a/src/concurrent/qtconcurrentfilter.cpp +++ b/src/concurrent/qtconcurrentfilter.cpp @@ -1,45 +1,10 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtConcurrent module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ +// Copyright (C) 2016 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only /*! \page qtconcurrentfilter.html \title Concurrent Filter and Filter-Reduce + \brief Selecting values from a sequence and combining them, all in parallel. \ingroup thread The QtConcurrent::filter(), QtConcurrent::filtered() and @@ -134,7 +99,10 @@ \snippet code/src_concurrent_qtconcurrentfilter.cpp 7 - Note that when using QtConcurrent::filteredReduced(), you can mix the use of + Note the use of qOverload. It is needed to resolve the ambiguity for the + methods, that have multiple overloads. + + Also note that when using QtConcurrent::filteredReduced(), you can mix the use of normal and member functions freely: \snippet code/src_concurrent_qtconcurrentfilter.cpp 8 @@ -148,9 +116,7 @@ \snippet code/src_concurrent_qtconcurrentfilter.cpp 13 - For the reduce function, function objects are not directly - supported. Function objects can, however, be used - when the type of the reduction result is explicitly specified: + Function objects are also supported for the reduce function: \snippet code/src_concurrent_qtconcurrentfilter.cpp 14 @@ -168,9 +134,7 @@ \snippet code/src_concurrent_qtconcurrentfilter.cpp 16 - For the reduce function, lambda expressions are not directly supported. - Lambda expressions can, however, be used when the type of the reduction - result is explicitly specified: + You can also pass a lambda as a reduce object: \snippet code/src_concurrent_qtconcurrentfilter.cpp 17 |