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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.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifdef QT_NO_DEBUG
#undef QT_NO_DEBUG
#endif
#ifdef qDebug
#undef qDebug
#endif
#include "qdebug.h"
// This file is needed to force compilation of QDebug into the kernel library.
/*!
\class QDebug
\ingroup io
\mainclass
\brief The QDebug class provides an output stream for debugging information.
QDebug is used whenever the developer needs to write out debugging or tracing
information to a device, file, string or console.
\section1 Basic Use
In the common case, it is useful to call the qDebug() function to obtain a
default QDebug object to use for writing debugging information.
\snippet doc/src/snippets/qdebug/qdebugsnippet.cpp 1
This constructs a QDebug object using the constructor that accepts a QtMsgType
value of QtDebugMsg. Similarly, the qWarning(), qCritical() and qFatal()
functions also return QDebug objects for the corresponding message types.
The class also provides several constructors for other situations, including
a constructor that accepts a QFile or any other QIODevice subclass that is
used to write debugging information to files and other devices. The constructor
that accepts a QString is used to write to a string for display or serialization.
\section1 Writing Custom Types to a Stream
Many standard types can be written to QDebug objects, and Qt provides support for
most Qt value types. To add support for custom types, you need to implement a
streaming operator, as in the following example:
\snippet doc/src/snippets/qdebug/qdebugsnippet.cpp 0
This is described in the \l{Debugging Techniques} and
\l{Creating Custom Qt Types#Making the Type Printable}{Creating Custom Qt Types}
documents.
*/
/*!
\fn QDebug::QDebug(QIODevice *device)
Constructs a debug stream that writes to the given \a device.
*/
/*!
\fn QDebug::QDebug(QString *string)
Constructs a debug stream that writes to the given \a string.
*/
/*!
\fn QDebug::QDebug(QtMsgType type)
Constructs a debug stream that writes to the handler for the message type specified by \a type.
*/
/*!
\fn QDebug::QDebug(const QDebug &other)
Constructs a copy of the \a other debug stream.
*/
/*!
\fn QDebug &QDebug::operator=(const QDebug &other)
Assigns the \a other debug stream to this stream and returns a reference to
this stream.
*/
/*!
\fn QDebug::~QDebug()
Flushes any pending data to be written and destroys the debug stream.
*/
/*!
\fn QDebug &QDebug::space()
Writes a space character to the debug stream and returns a reference to
the stream.
The stream will record that the last character sent to the stream was a
space.
\sa nospace(), maybeSpace()
*/
/*!
\fn QDebug &QDebug::nospace()
Clears the stream's internal flag that records whether the last character
was a space and returns a reference to the stream.
\sa space(), maybeSpace()
*/
/*!
\fn QDebug &QDebug::maybeSpace()
Writes a space character to the debug stream, depending on the last
character sent to the stream, and returns a reference to the stream.
If the last character was a space character, this function writes a space
character to the stream; otherwise, no characters are written to the stream.
\sa space(), nospace()
*/
/*!
\fn QDebug &QDebug::operator<<(QChar t)
Writes the character, \a t, to the stream and returns a reference to the
stream.
*/
/*!
\fn QDebug &QDebug::operator<<(QBool t)
\internal
Writes the boolean value, \a t, to the stream and returns a reference to the
stream.
*/
/*!
\fn QDebug &QDebug::operator<<(bool t)
Writes the boolean value, \a t, to the stream and returns a reference to the
stream.
*/
/*!
\fn QDebug &QDebug::operator<<(char t)
Writes the character, \a t, to the stream and returns a reference to the
stream.
*/
/*!
\fn QDebug &QDebug::operator<<(signed short i)
Writes the signed short integer, \a i, to the stream and returns a reference
to the stream.
*/
/*!
\fn QDebug &QDebug::operator<<(unsigned short i)
Writes then unsigned short integer, \a i, to the stream and returns a
reference to the stream.
*/
/*!
\fn QDebug &QDebug::operator<<(signed int i)
Writes the signed integer, \a i, to the stream and returns a reference
to the stream.
*/
/*!
\fn QDebug &QDebug::operator<<(unsigned int i)
Writes then unsigned integer, \a i, to the stream and returns a reference to
the stream.
*/
/*!
\fn QDebug &QDebug::operator<<(signed long l)
Writes the signed long integer, \a l, to the stream and returns a reference
to the stream.
*/
/*!
\fn QDebug &QDebug::operator<<(unsigned long l)
Writes then unsigned long integer, \a l, to the stream and returns a reference
to the stream.
*/
/*!
\fn QDebug &QDebug::operator<<(qint64 i)
Writes the signed 64-bit integer, \a i, to the stream and returns a reference
to the stream.
*/
/*!
\fn QDebug &QDebug::operator<<(quint64 i)
Writes then unsigned 64-bit integer, \a i, to the stream and returns a
reference to the stream.
*/
/*!
\fn QDebug &QDebug::operator<<(float f)
Writes the 32-bit floating point number, \a f, to the stream and returns a
reference to the stream.
*/
/*!
\fn QDebug &QDebug::operator<<(double f)
Writes the 64-bit floating point number, \a f, to the stream and returns a
reference to the stream.
*/
/*!
\fn QDebug &QDebug::operator<<(const char *s)
Writes the '\0'-terminated string, \a s, to the stream and returns a
reference to the stream.
*/
/*!
\fn QDebug &QDebug::operator<<(const QString &s)
Writes the string, \a s, to the stream and returns a reference to the stream.
*/
/*!
\fn QDebug &QDebug::operator<<(const QStringRef &s)
Writes the string reference, \a s, to the stream and returns a reference to
the stream.
*/
/*!
\fn QDebug &QDebug::operator<<(const QLatin1String &s)
Writes the Latin1-encoded string, \a s, to the stream and returns a reference
to the stream.
*/
/*!
\fn QDebug &QDebug::operator<<(const QByteArray &b)
Writes the byte array, \a b, to the stream and returns a reference to the
stream.
*/
/*!
\fn QDebug &QDebug::operator<<(const void *p)
Writes a pointer, \a p, to the stream and returns a reference to the stream.
*/
/*!
\fn QDebug &QDebug::operator<<(QTextStreamFunction f)
\internal
*/
/*!
\fn QDebug &QDebug::operator<<(QTextStreamManipulator m)
\internal
*/
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