mirror of
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257 lines
9.2 KiB
C++
257 lines
9.2 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the QtCore module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see http://www.qt.io/terms-conditions. For further
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** information use the contact form at http://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** As a special exception, The Qt Company gives you certain additional
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** rights. These rights are described in The Qt Company LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QDEBUG_H
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#define QDEBUG_H
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#include <QtCore/qtextstream.h>
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#include <QtCore/qvector.h>
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#include <QtCore/qset.h>
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#include <QtCore/qcontiguouscache.h>
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QT_BEGIN_HEADER
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QT_BEGIN_NAMESPACE
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class Q_CORE_EXPORT QDebug
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{
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struct Stream {
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Stream(QIODevice *device) : ts(device), ref(1), type(QtDebugMsg), space(true), message_output(false) {}
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Stream(QString *string) : ts(string, QIODevice::WriteOnly), ref(1), type(QtDebugMsg), space(true), message_output(false) {}
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Stream(QtMsgType t) : ts(&buffer, QIODevice::WriteOnly), ref(1), type(t), space(true), message_output(true) {}
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QTextStream ts;
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QString buffer;
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int ref;
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QtMsgType type;
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bool space;
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bool message_output;
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} *stream;
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public:
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inline QDebug(QIODevice *device) : stream(new Stream(device)) {}
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inline QDebug(QString *string) : stream(new Stream(string)) {}
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inline QDebug(QtMsgType t) : stream(new Stream(t)) {}
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inline QDebug(const QDebug &o):stream(o.stream) { ++stream->ref; }
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inline QDebug &operator=(const QDebug &other);
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inline ~QDebug() {
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if (!--stream->ref) {
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if(stream->message_output) {
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QT_TRY {
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qt_message_output(stream->type, stream->buffer.toLocal8Bit().data());
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} QT_CATCH(std::bad_alloc&) { /* We're out of memory - give up. */ }
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}
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delete stream;
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}
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}
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inline QDebug &space() { stream->space = true; stream->ts << ' '; return *this; }
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inline QDebug &nospace() { stream->space = false; return *this; }
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inline QDebug &maybeSpace() { if (stream->space) stream->ts << ' '; return *this; }
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inline QDebug &operator<<(QChar t) { stream->ts << '\'' << t << '\''; return maybeSpace(); }
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inline QDebug &operator<<(bool t) { stream->ts << (t ? "true" : "false"); return maybeSpace(); }
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inline QDebug &operator<<(char t) { stream->ts << t; return maybeSpace(); }
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inline QDebug &operator<<(signed short t) { stream->ts << t; return maybeSpace(); }
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inline QDebug &operator<<(unsigned short t) { stream->ts << t; return maybeSpace(); }
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inline QDebug &operator<<(signed int t) { stream->ts << t; return maybeSpace(); }
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inline QDebug &operator<<(unsigned int t) { stream->ts << t; return maybeSpace(); }
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inline QDebug &operator<<(signed long t) { stream->ts << t; return maybeSpace(); }
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inline QDebug &operator<<(unsigned long t) { stream->ts << t; return maybeSpace(); }
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inline QDebug &operator<<(qint64 t)
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{ stream->ts << QString::number(t); return maybeSpace(); }
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inline QDebug &operator<<(quint64 t)
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{ stream->ts << QString::number(t); return maybeSpace(); }
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inline QDebug &operator<<(float t) { stream->ts << t; return maybeSpace(); }
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inline QDebug &operator<<(double t) { stream->ts << t; return maybeSpace(); }
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inline QDebug &operator<<(const char* t) { stream->ts << QString::fromAscii(t); return maybeSpace(); }
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inline QDebug &operator<<(const QString & t) { stream->ts << '\"' << t << '\"'; return maybeSpace(); }
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inline QDebug &operator<<(const QStringRef & t) { return operator<<(t.toString()); }
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inline QDebug &operator<<(const QLatin1String &t) { stream->ts << '\"' << t.latin1() << '\"'; return maybeSpace(); }
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inline QDebug &operator<<(const QByteArray & t) { stream->ts << '\"' << t << '\"'; return maybeSpace(); }
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inline QDebug &operator<<(const void * t) { stream->ts << t; return maybeSpace(); }
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inline QDebug &operator<<(QTextStreamFunction f) {
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stream->ts << f;
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return *this;
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}
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inline QDebug &operator<<(QTextStreamManipulator m)
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{ stream->ts << m; return *this; }
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};
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class QNoDebug
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{
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public:
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inline QNoDebug(){}
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inline QNoDebug(const QDebug &){}
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inline ~QNoDebug(){}
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#if !defined( QT_NO_TEXTSTREAM )
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inline QNoDebug &operator<<(QTextStreamFunction) { return *this; }
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inline QNoDebug &operator<<(QTextStreamManipulator) { return *this; }
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#endif
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inline QNoDebug &space() { return *this; }
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inline QNoDebug &nospace() { return *this; }
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inline QNoDebug &maybeSpace() { return *this; }
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template<typename T>
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inline QNoDebug &operator<<(const T &) { return *this; }
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};
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Q_CORE_EXPORT_INLINE QDebug qCritical() { return QDebug(QtCriticalMsg); }
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inline QDebug &QDebug::operator=(const QDebug &other)
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{
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if (this != &other) {
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QDebug copy(other);
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qSwap(stream, copy.stream);
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}
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return *this;
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}
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template <class T>
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inline QDebug operator<<(QDebug debug, const QList<T> &list)
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{
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debug.nospace() << '(';
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for (Q_TYPENAME QList<T>::size_type i = 0; i < list.count(); ++i) {
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if (i)
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debug << ", ";
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debug << list.at(i);
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}
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debug << ')';
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return debug.space();
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}
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template <typename T>
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inline QDebug operator<<(QDebug debug, const QVector<T> &vec)
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{
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debug.nospace() << "QVector";
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return operator<<(debug, vec.toList());
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}
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template <class aKey, class aT>
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inline QDebug operator<<(QDebug debug, const QMap<aKey, aT> &map)
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{
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debug.nospace() << "QMap(";
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for (typename QMap<aKey, aT>::const_iterator it = map.constBegin();
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it != map.constEnd(); ++it) {
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debug << '(' << it.key() << ", " << it.value() << ')';
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}
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debug << ')';
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return debug.space();
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}
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template <class aKey, class aT>
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inline QDebug operator<<(QDebug debug, const QHash<aKey, aT> &hash)
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{
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debug.nospace() << "QHash(";
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for (typename QHash<aKey, aT>::const_iterator it = hash.constBegin();
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it != hash.constEnd(); ++it)
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debug << '(' << it.key() << ", " << it.value() << ')';
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debug << ')';
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return debug.space();
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}
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template <class T1, class T2>
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inline QDebug operator<<(QDebug debug, const QPair<T1, T2> &pair)
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{
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debug.nospace() << "QPair(" << pair.first << ',' << pair.second << ')';
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return debug.space();
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}
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template <typename T>
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inline QDebug operator<<(QDebug debug, const QSet<T> &set)
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{
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debug.nospace() << "QSet";
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return operator<<(debug, set.toList());
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}
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template <class T>
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inline QDebug operator<<(QDebug debug, const QContiguousCache<T> &cache)
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{
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debug.nospace() << "QContiguousCache(";
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for (int i = cache.firstIndex(); i <= cache.lastIndex(); ++i) {
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debug << cache[i];
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if (i != cache.lastIndex())
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debug << ", ";
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}
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debug << ')';
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return debug.space();
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}
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template <class T>
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inline QDebug operator<<(QDebug debug, const QFlags<T> &flags)
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{
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debug.nospace() << "QFlags(";
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bool needSeparator = false;
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for (uint i = 0; i < sizeof(T) * 8; ++i) {
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if (flags.testFlag(T(1 << i))) {
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if (needSeparator)
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debug.nospace() << '|';
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else
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needSeparator = true;
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debug.nospace() << "0x" << QByteArray::number(T(1 << i), 16).constData();
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}
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}
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debug << ')';
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return debug.space();
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}
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#if !defined(QT_NO_DEBUG_STREAM)
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Q_CORE_EXPORT_INLINE QDebug qDebug() { return QDebug(QtDebugMsg); }
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#else // QT_NO_DEBUG_STREAM
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#undef qDebug
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inline QNoDebug qDebug() { return QNoDebug(); }
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#define qDebug QNoDebug
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#endif
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#if !defined(QT_NO_WARNING_OUTPUT)
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Q_CORE_EXPORT_INLINE QDebug qWarning() { return QDebug(QtWarningMsg); }
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#else
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#undef qWarning
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inline QNoDebug qWarning() { return QNoDebug(); }
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#define qWarning QNoDebug
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#endif
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QT_END_NAMESPACE
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QT_END_HEADER
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#endif // QDEBUG_H
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