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authorJason Barron <jbarron@trolltech.com>2009-06-25 13:49:53 (GMT)
committerJason Barron <jbarron@trolltech.com>2009-06-25 13:49:53 (GMT)
commitdb8f05e257019694f5e8076845626008f2adc3dd (patch)
tree05d3959403cf15ac5f702091439e028af01f343b /src/corelib/tools/qstringbuilder.cpp
parent8aafaa65a1d16f8b982279f5aceedf1e281ddb5a (diff)
parent796a5a2c7d8c91a46ac761dde18b7da2ec6c177b (diff)
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Merge commit 'qt/master-stable' into 4.6-stable
Bring Qt 4.6 into the Qt-S60 repo. Conflicts: configure.exe mkspecs/features/qttest_p4.prf qmake/generators/makefile.cpp src/corelib/io/qdir.cpp src/corelib/io/qprocess.h src/corelib/kernel/qcoreevent.h src/corelib/kernel/qobject.cpp src/corelib/kernel/qsharedmemory_unix.cpp src/corelib/thread/qthread_p.h src/corelib/tools/qvector.h src/gui/dialogs/qdialog.cpp src/gui/dialogs/qfiledialog.cpp src/gui/dialogs/qfiledialog_p.h src/gui/dialogs/qmessagebox.cpp src/gui/graphicsview/qgraphicsitem.cpp src/gui/graphicsview/qgraphicsview.cpp src/gui/image/qpixmapcache.cpp src/gui/kernel/qapplication.cpp src/gui/kernel/qapplication_p.h src/gui/kernel/qwidget.cpp src/gui/kernel/qwidget_p.h src/gui/painting/qdrawhelper.cpp src/gui/painting/qpaintengine_raster.cpp src/gui/text/qfontengine_qpf.cpp src/gui/widgets/qmenubar.cpp src/network/socket/qlocalserver.cpp src/testlib/qtestcase.cpp src/testlib/testlib.pro tests/auto/qimagereader/tst_qimagereader.cpp tests/auto/qitemdelegate/tst_qitemdelegate.cpp tests/auto/qnetworkreply/tst_qnetworkreply.cpp tests/auto/qpixmap/qpixmap.pro
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtCore module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qstringbuilder.h"
+
+/*!
+ \class QLatin1Literal
+ \reentrant
+ \since 4.6
+
+ \brief The QLatin1Literal class provides a thin wrapper around string
+ literals used in source code.
+
+ \ingroup tools
+ \ingroup shared
+ \ingroup text
+ \mainclass
+
+ Unlike \c QLatin1String, a \c QLatin1Literal can retrieve its size
+ without iterating over the literal.
+
+ The main use of \c QLatin1Literal is in conjunction with \c QStringBuilder
+ to reduce the number of reallocations needed to build up a string from
+ smaller chunks.
+
+ \sa QStringBuilder, QLatin1String, QString, QStringRef
+*/
+
+/*! \fn int QLatin1Literal::size() const
+
+ Returns the number of characters in the literal \e{excluding} the trailing
+ NULL char.
+*/
+
+/*! \fn QLatin1Literal::QLatin1Literal(const char(&string)[N])
+
+ Constructs a new literal from the given \a string.
+*/
+
+/*! \fn char *QLatin1Literal::data() const
+
+ Returns a pointer to the first character of the string literal.
+ The string literal is terminated by a NUL character.
+*/
+
+/*! \fn QLatin1Literal::operator QString() const
+
+ Converts the \c QLatin1Literal into a \c QString object.
+*/
+
+
+
+/*!
+ \class QStringBuilder
+ \reentrant
+ \since 4.6
+
+ \brief The QStringBuilder class is a template class that provides a facility to build
+ up QStrings from smaller chunks.
+
+ \ingroup tools
+ \ingroup shared
+ \ingroup text
+ \mainclass
+
+ When creating strings from smaller chunks, typically \c QString::operator+()
+ is used, resulting in \e{n - 1} reallocations when operating on \e{n} chunks.
+
+ QStringBuilder uses expression templates to collect the individual parts,
+ compute the total size, allocate memory for the resulting QString object,
+ and copy the contents of the chunks into the result.
+
+ The QStringBuilder class is not to be used explicitly in user code.
+ Instances of the class are created as return values of the operator%()
+ function, acting on objects of type \c QString, \c QLatin1String,
+ \c QLatin1Literal, \c \QStringRef, \c QChar, \c QCharRef,
+ \c QLatin1Char, and \c char.
+
+ Concatenating strings with operator%() generally yields better
+ performance then using \c QString::operator+() on the same chunks
+ if there are three or more of them, and performs equally well in other
+ cases.
+
+ \sa QLatin1Literal, QString
+*/
+
+/* \fn template <class A, class B> QStringBuilder<A, B> operator%(const A &a, const B &b)
+
+ Returns a \c QStringBuilder object that is converted to a QString object
+ when assigned to a variable of QString type or passed to a function that
+ takes a QString parameter.
+
+ This function is usable with arguments of type \c QString,
+ \c QLatin1String, \c QLatin1Literal, \c QStringRef,
+ \c QChar, \c QCharRef, \c QLatin1Char, and \c char.
+*/
+