diff options
| author | Qt by Nokia <qt-info@nokia.com> | 2011-04-27 12:05:43 +0200 |
|---|---|---|
| committer | axis <qt-info@nokia.com> | 2011-04-27 12:05:43 +0200 |
| commit | 38be0d13830efd2d98281c645c3a60afe05ffece (patch) | |
| tree | 6ea73f3ec77f7d153333779883e8120f82820abe /src/corelib/global/qglobal.cpp | |
Initial import from the monolithic Qt.
This is the beginning of revision history for this module. If you
want to look at revision history older than this, please refer to the
Qt Git wiki for how to use Git history grafting. At the time of
writing, this wiki is located here:
http://qt.gitorious.org/qt/pages/GitIntroductionWithQt
If you have already performed the grafting and you don't see any
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Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12
Diffstat (limited to 'src/corelib/global/qglobal.cpp')
| -rw-r--r-- | src/corelib/global/qglobal.cpp | 3653 |
1 files changed, 3653 insertions, 0 deletions
diff --git a/src/corelib/global/qglobal.cpp b/src/corelib/global/qglobal.cpp new file mode 100644 index 0000000000..a6b9bddcc4 --- /dev/null +++ b/src/corelib/global/qglobal.cpp @@ -0,0 +1,3653 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (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 Technology Preview License Agreement accompanying +** this package. +** +** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qplatformdefs.h" +#include "qstring.h" +#include "qvector.h" +#include "qlist.h" +#include "qthreadstorage.h" +#include "qdir.h" +#include "qstringlist.h" +#include "qdatetime.h" + +#ifndef QT_NO_QOBJECT +#include <private/qthread_p.h> +#endif + +#include <stdio.h> +#include <stdlib.h> +#include <limits.h> +#include <stdarg.h> +#include <string.h> + +#ifndef QT_NO_EXCEPTIONS +# include <string> +# include <exception> +#endif + +#if !defined(Q_OS_WINCE) +# include <errno.h> +# if defined(Q_CC_MSVC) +# include <crtdbg.h> +# endif +#endif + +#if defined(Q_OS_VXWORKS) +# include <envLib.h> +#endif + +#if defined(Q_OS_MACX) && !defined(QT_NO_CORESERVICES) +#include <CoreServices/CoreServices.h> +#endif + +#if defined(Q_OS_SYMBIAN) +#include <e32def.h> +#include <e32debug.h> +#include <f32file.h> +#include <e32math.h> +# include "private/qcore_symbian_p.h" + +_LIT(qt_S60Filter, "Series60v?.*.sis"); +_LIT(qt_symbianSystemInstallDir, "z:\\system\\install\\"); +#endif + +QT_BEGIN_NAMESPACE + + +/*! + \class QFlag + \brief The QFlag class is a helper data type for QFlags. + + It is equivalent to a plain \c int, except with respect to + function overloading and type conversions. You should never need + to use this class in your applications. + + \sa QFlags +*/ + +/*! + \fn QFlag::QFlag(int value) + + Constructs a QFlag object that stores the given \a value. +*/ + +/*! + \fn QFlag::operator int() const + + Returns the value stored by the QFlag object. +*/ + +/*! + \class QFlags + \brief The QFlags class provides a type-safe way of storing + OR-combinations of enum values. + + + \ingroup tools + + The QFlags<Enum> class is a template class, where Enum is an enum + type. QFlags is used throughout Qt for storing combinations of + enum values. + + The traditional C++ approach for storing OR-combinations of enum + values is to use an \c int or \c uint variable. The inconvenience + with this approach is that there's no type checking at all; any + enum value can be OR'd with any other enum value and passed on to + a function that takes an \c int or \c uint. + + Qt uses QFlags to provide type safety. For example, the + Qt::Alignment type is simply a typedef for + QFlags<Qt::AlignmentFlag>. QLabel::setAlignment() takes a + Qt::Alignment parameter, which means that any combination of + Qt::AlignmentFlag values,or 0, is legal: + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 0 + + If you try to pass a value from another enum or just a plain + integer other than 0, the compiler will report an error. If you + need to cast integer values to flags in a untyped fashion, you can + use the explicit QFlags constructor as cast operator. + + If you want to use QFlags for your own enum types, use + the Q_DECLARE_FLAGS() and Q_DECLARE_OPERATORS_FOR_FLAGS(). + + Example: + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 1 + + You can then use the \c MyClass::Options type to store + combinations of \c MyClass::Option values. + + \section1 Flags and the Meta-Object System + + The Q_DECLARE_FLAGS() macro does not expose the flags to the meta-object + system, so they cannot be used by Qt Script or edited in Qt Designer. + To make the flags available for these purposes, the Q_FLAGS() macro must + be used: + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp meta-object flags + + \section1 Naming Convention + + A sensible naming convention for enum types and associated QFlags + types is to give a singular name to the enum type (e.g., \c + Option) and a plural name to the QFlags type (e.g., \c Options). + When a singular name is desired for the QFlags type (e.g., \c + Alignment), you can use \c Flag as the suffix for the enum type + (e.g., \c AlignmentFlag). + + \sa QFlag +*/ + +/*! + \typedef QFlags::enum_type + + Typedef for the Enum template type. +*/ + +/*! + \fn QFlags::QFlags(const QFlags &other) + + Constructs a copy of \a other. +*/ + +/*! + \fn QFlags::QFlags(Enum flag) + + Constructs a QFlags object storing the given \a flag. +*/ + +/*! + \fn QFlags::QFlags(Zero zero) + + Constructs a QFlags object with no flags set. \a zero must be a + literal 0 value. +*/ + +/*! + \fn QFlags::QFlags(QFlag value) + + Constructs a QFlags object initialized with the given integer \a + value. + + The QFlag type is a helper type. By using it here instead of \c + int, we effectively ensure that arbitrary enum values cannot be + cast to a QFlags, whereas untyped enum values (i.e., \c int + values) can. +*/ + +/*! + \fn QFlags &QFlags::operator=(const QFlags &other) + + Assigns \a other to this object and returns a reference to this + object. +*/ + +/*! + \fn QFlags &QFlags::operator&=(int mask) + + Performs a bitwise AND operation with \a mask and stores the + result in this QFlags object. Returns a reference to this object. + + \sa operator&(), operator|=(), operator^=() +*/ + +/*! + \fn QFlags &QFlags::operator&=(uint mask) + + \overload +*/ + +/*! + \fn QFlags &QFlags::operator|=(QFlags other) + + Performs a bitwise OR operation with \a other and stores the + result in this QFlags object. Returns a reference to this object. + + \sa operator|(), operator&=(), operator^=() +*/ + +/*! + \fn QFlags &QFlags::operator|=(Enum other) + + \overload +*/ + +/*! + \fn QFlags &QFlags::operator^=(QFlags other) + + Performs a bitwise XOR operation with \a other and stores the + result in this QFlags object. Returns a reference to this object. + + \sa operator^(), operator&=(), operator|=() +*/ + +/*! + \fn QFlags &QFlags::operator^=(Enum other) + + \overload +*/ + +/*! + \fn QFlags::operator int() const + + Returns the value stored in the QFlags object as an integer. +*/ + +/*! + \fn QFlags QFlags::operator|(QFlags other) const + + Returns a QFlags object containing the result of the bitwise OR + operation on this object and \a other. + + \sa operator|=(), operator^(), operator&(), operator~() +*/ + +/*! + \fn QFlags QFlags::operator|(Enum other) const + + \overload +*/ + +/*! + \fn QFlags QFlags::operator^(QFlags other) const + + Returns a QFlags object containing the result of the bitwise XOR + operation on this object and \a other. + + \sa operator^=(), operator&(), operator|(), operator~() +*/ + +/*! + \fn QFlags QFlags::operator^(Enum other) const + + \overload +*/ + +/*! + \fn QFlags QFlags::operator&(int mask) const + + Returns a QFlags object containing the result of the bitwise AND + operation on this object and \a mask. + + \sa operator&=(), operator|(), operator^(), operator~() +*/ + +/*! + \fn QFlags QFlags::operator&(uint mask) const + + \overload +*/ + +/*! + \fn QFlags QFlags::operator&(Enum mask) const + + \overload +*/ + +/*! + \fn QFlags QFlags::operator~() const + + Returns a QFlags object that contains the bitwise negation of + this object. + + \sa operator&(), operator|(), operator^() +*/ + +/*! + \fn bool QFlags::operator!() const + + Returns true if no flag is set (i.e., if the value stored by the + QFlags object is 0); otherwise returns false. +*/ + +/*! + \fn bool QFlags::testFlag(Enum flag) const + \since 4.2 + + Returns true if the \a flag is set, otherwise false. +*/ + +/*! + \macro Q_DISABLE_COPY(Class) + \relates QObject + + Disables the use of copy constructors and assignment operators + for the given \a Class. + + Instances of subclasses of QObject should not be thought of as + values that can be copied or assigned, but as unique identities. + This means that when you create your own subclass of QObject + (director or indirect), you should \e not give it a copy constructor + or an assignment operator. However, it may not enough to simply + omit them from your class, because, if you mistakenly write some code + that requires a copy constructor or an assignment operator (it's easy + to do), your compiler will thoughtfully create it for you. You must + do more. + + The curious user will have seen that the Qt classes derived + from QObject typically include this macro in a private section: + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 43 + + It declares a copy constructor and an assignment operator in the + private section, so that if you use them by mistake, the compiler + will report an error. + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 44 + + But even this might not catch absolutely every case. You might be + tempted to do something like this: + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 45 + + First of all, don't do that. Most compilers will generate code that + uses the copy constructor, so the privacy violation error will be + reported, but your C++ compiler is not required to generate code for + this statement in a specific way. It could generate code using + \e{neither} the copy constructor \e{nor} the assignment operator we + made private. In that case, no error would be reported, but your + application would probably crash when you called a member function + of \c{w}. +*/ + +/*! + \macro Q_DECLARE_FLAGS(Flags, Enum) + \relates QFlags + + The Q_DECLARE_FLAGS() macro expands to + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 2 + + \a Enum is the name of an existing enum type, whereas \a Flags is + the name of the QFlags<\e{Enum}> typedef. + + See the QFlags documentation for details. + + \sa Q_DECLARE_OPERATORS_FOR_FLAGS() +*/ + +/*! + \macro Q_DECLARE_OPERATORS_FOR_FLAGS(Flags) + \relates QFlags + + The Q_DECLARE_OPERATORS_FOR_FLAGS() macro declares global \c + operator|() functions for \a Flags, which is of type QFlags<T>. + + See the QFlags documentation for details. + + \sa Q_DECLARE_FLAGS() +*/ + +/*! + \headerfile <QtGlobal> + \title Global Qt Declarations + \ingroup funclists + + \brief The <QtGlobal> header file includes the fundamental global + declarations. It is included by most other Qt header files. + + The global declarations include \l{types}, \l{functions} and + \l{macros}. + + The type definitions are partly convenience definitions for basic + types (some of which guarantee certain bit-sizes on all platforms + supported by Qt), partly types related to Qt message handling. The + functions are related to generating messages, Qt version handling + and comparing and adjusting object values. And finally, some of + the declared macros enable programmers to add compiler or platform + specific code to their applications, while others are convenience + macros for larger operations. + + \section1 Types + + The header file declares several type definitions that guarantee a + specified bit-size on all platforms supported by Qt for various + basic types, for example \l qint8 which is a signed char + guaranteed to be 8-bit on all platforms supported by Qt. The + header file also declares the \l qlonglong type definition for \c + {long long int } (\c __int64 on Windows). + + Several convenience type definitions are declared: \l qreal for \c + double, \l uchar for \c unsigned char, \l uint for \c unsigned + int, \l ulong for \c unsigned long and \l ushort for \c unsigned + short. + + Finally, the QtMsgType definition identifies the various messages + that can be generated and sent to a Qt message handler; + QtMsgHandler is a type definition for a pointer to a function with + the signature \c {void myMsgHandler(QtMsgType, const char *)}. + + \section1 Functions + + The <QtGlobal> header file contains several functions comparing + and adjusting an object's value. These functions take a template + type as argument: You can retrieve the absolute value of an object + using the qAbs() function, and you can bound a given object's + value by given minimum and maximum values using the qBound() + function. You can retrieve the minimum and maximum of two given + objects using qMin() and qMax() respectively. All these functions + return a corresponding template type; the template types can be + replaced by any other type. + + Example: + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 3 + + <QtGlobal> also contains functions that generate messages from the + given string argument: qCritical(), qDebug(), qFatal() and + qWarning(). These functions call the message handler with the + given message. + + Example: + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 4 + + The remaining functions are qRound() and qRound64(), which both + accept a \l qreal value as their argument returning the value + rounded up to the nearest integer and 64-bit integer respectively, + the qInstallMsgHandler() function which installs the given + QtMsgHandler, and the qVersion() function which returns the + version number of Qt at run-time as a string. + + \section1 Macros + + The <QtGlobal> header file provides a range of macros (Q_CC_*) + that are defined if the application is compiled using the + specified platforms. For example, the Q_CC_SUN macro is defined if + the application is compiled using Forte Developer, or Sun Studio + C++. The header file also declares a range of macros (Q_OS_*) + that are defined for the specified platforms. For example, + Q_OS_X11 which is defined for the X Window System. + + The purpose of these macros is to enable programmers to add + compiler or platform specific code to their application. + + The remaining macros are convenience macros for larger operations: + The QT_TRANSLATE_NOOP() and QT_TR_NOOP() macros provide the + possibility of marking text for dynamic translation, + i.e. translation without changing the stored source text. The + Q_ASSERT() and Q_ASSERT_X() enables warning messages of various + level of refinement. The Q_FOREACH() and foreach() macros + implement Qt's foreach loop. + + The Q_INT64_C() and Q_UINT64_C() macros wrap signed and unsigned + 64-bit integer literals in a platform-independent way. The + Q_CHECK_PTR() macro prints a warning containing the source code's + file name and line number, saying that the program ran out of + memory, if the pointer is 0. The qPrintable() macro represent an + easy way of printing text. + + Finally, the QT_POINTER_SIZE macro expands to the size of a + pointer in bytes, and the QT_VERSION and QT_VERSION_STR macros + expand to a numeric value or a string, respectively, specifying + Qt's version number, i.e the version the application is compiled + against. + + \sa <QtAlgorithms>, QSysInfo +*/ + +/*! + \typedef qreal + \relates <QtGlobal> + + Typedef for \c double on all platforms except for those using CPUs with + ARM architectures. + On ARM-based platforms, \c qreal is a typedef for \c float for performance + reasons. +*/ + +/*! \typedef uchar + \relates <QtGlobal> + + Convenience typedef for \c{unsigned char}. +*/ + +/*! + \fn qt_set_sequence_auto_mnemonic(bool on) + \relates <QtGlobal> + + Enables automatic mnemonics on Mac if \a on is true; otherwise + this feature is disabled. + + Note that this function is only available on Mac where mnemonics + are disabled by default. + + To access to this function, use an extern declaration: + extern void qt_set_sequence_auto_mnemonic(bool b); + + \sa {QShortcut#mnemonic}{QShortcut} +*/ + +/*! \typedef ushort + \relates <QtGlobal> + + Convenience typedef for \c{unsigned short}. +*/ + +/*! \typedef uint + \relates <QtGlobal> + + Convenience typedef for \c{unsigned int}. +*/ + +/*! \typedef ulong + \relates <QtGlobal> + + Convenience typedef for \c{unsigned long}. +*/ + +/*! \typedef qint8 + \relates <QtGlobal> + + Typedef for \c{signed char}. This type is guaranteed to be 8-bit + on all platforms supported by Qt. +*/ + +/*! + \typedef quint8 + \relates <QtGlobal> + + Typedef for \c{unsigned char}. This type is guaranteed to + be 8-bit on all platforms supported by Qt. +*/ + +/*! \typedef qint16 + \relates <QtGlobal> + + Typedef for \c{signed short}. This type is guaranteed to be + 16-bit on all platforms supported by Qt. +*/ + +/*! + \typedef quint16 + \relates <QtGlobal> + + Typedef for \c{unsigned short}. This type is guaranteed to + be 16-bit on all platforms supported by Qt. +*/ + +/*! \typedef qint32 + \relates <QtGlobal> + + Typedef for \c{signed int}. This type is guaranteed to be 32-bit + on all platforms supported by Qt. +*/ + +/*! + \typedef quint32 + \relates <QtGlobal> + + Typedef for \c{unsigned int}. This type is guaranteed to + be 32-bit on all platforms supported by Qt. +*/ + +/*! \typedef qint64 + \relates <QtGlobal> + + Typedef for \c{long long int} (\c __int64 on Windows). This type + is guaranteed to be 64-bit on all platforms supported by Qt. + + Literals of this type can be created using the Q_INT64_C() macro: + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 5 + + \sa Q_INT64_C(), quint64, qlonglong +*/ + +/*! + \typedef quint64 + \relates <QtGlobal> + + Typedef for \c{unsigned long long int} (\c{unsigned __int64} on + Windows). This type is guaranteed to be 64-bit on all platforms + supported by Qt. + + Literals of this type can be created using the Q_UINT64_C() + macro: + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 6 + + \sa Q_UINT64_C(), qint64, qulonglong +*/ + +/*! + \typedef quintptr + \relates <QtGlobal> + + Integral type for representing a pointers (useful for hashing, + etc.). + + Typedef for either quint32 or quint64. This type is guaranteed to + be the same size as a pointer on all platforms supported by Qt. On + a system with 32-bit pointers, quintptr is a typedef for quint32; + on a system with 64-bit pointers, quintptr is a typedef for + quint64. + + Note that quintptr is unsigned. Use qptrdiff for signed values. + + \sa qptrdiff, quint32, quint64 +*/ + +/*! + \typedef qptrdiff + \relates <QtGlobal> + + Integral type for representing pointer differences. + + Typedef for either qint32 or qint64. This type is guaranteed to be + the same size as a pointer on all platforms supported by Qt. On a + system with 32-bit pointers, quintptr is a typedef for quint32; on + a system with 64-bit pointers, quintptr is a typedef for quint64. + + Note that qptrdiff is signed. Use quintptr for unsigned values. + + \sa quintptr, qint32, qint64 +*/ + +/*! + \typedef QtMsgHandler + \relates <QtGlobal> + + This is a typedef for a pointer to a function with the following + signature: + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 7 + + \sa QtMsgType, qInstallMsgHandler() +*/ + +/*! + \enum QtMsgType + \relates <QtGlobal> + + This enum describes the messages that can be sent to a message + handler (QtMsgHandler). You can use the enum to identify and + associate the various message types with the appropriate + actions. + + \value QtDebugMsg + A message generated by the qDebug() function. + \value QtWarningMsg + A message generated by the qWarning() function. + \value QtCriticalMsg + A message generated by the qCritical() function. + \value QtFatalMsg + A message generated by the qFatal() function. + \value QtSystemMsg + + + \sa QtMsgHandler, qInstallMsgHandler() +*/ + +/*! \macro qint64 Q_INT64_C(literal) + \relates <QtGlobal> + + Wraps the signed 64-bit integer \a literal in a + platform-independent way. + + Example: + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 8 + + \sa qint64, Q_UINT64_C() +*/ + +/*! \macro quint64 Q_UINT64_C(literal) + \relates <QtGlobal> + + Wraps the unsigned 64-bit integer \a literal in a + platform-independent way. + + Example: + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 9 + + \sa quint64, Q_INT64_C() +*/ + +/*! \typedef qlonglong + \relates <QtGlobal> + + Typedef for \c{long long int} (\c __int64 on Windows). This is + the same as \l qint64. + + \sa qulonglong, qint64 +*/ + +/*! + \typedef qulonglong + \relates <QtGlobal> + + Typedef for \c{unsigned long long int} (\c{unsigned __int64} on + Windows). This is the same as \l quint64. + + \sa quint64, qlonglong +*/ + +/*! \fn const T &qAbs(const T &value) + \relates <QtGlobal> + + Compares \a value to the 0 of type T and returns the absolute + value. Thus if T is \e {double}, then \a value is compared to + \e{(double) 0}. + + Example: + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 10 +*/ + +/*! \fn int qRound(qreal value) + \relates <QtGlobal> + + Rounds \a value to the nearest integer. + + Example: + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 11 +*/ + +/*! \fn qint64 qRound64(qreal value) + \relates <QtGlobal> + + Rounds \a value to the nearest 64-bit integer. + + Example: + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 12 +*/ + +/*! \fn const T &qMin(const T &value1, const T &value2) + \relates <QtGlobal> + + Returns the minimum of \a value1 and \a value2. + + Example: + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 13 + + \sa qMax(), qBound() +*/ + +/*! \fn const T &qMax(const T &value1, const T &value2) + \relates <QtGlobal> + + Returns the maximum of \a value1 and \a value2. + + Example: + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 14 + + \sa qMin(), qBound() +*/ + +/*! \fn const T &qBound(const T &min, const T &value, const T &max) + \relates <QtGlobal> + + Returns \a value bounded by \a min and \a max. This is equivalent + to qMax(\a min, qMin(\a value, \a max)). + + Example: + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 15 + + \sa qMin(), qMax() +*/ + +/*! + \typedef Q_INT8 + \relates <QtGlobal> + \compat + + Use \l qint8 instead. +*/ + +/*! + \typedef Q_UINT8 + \relates <QtGlobal> + \compat + + Use \l quint8 instead. +*/ + +/*! + \typedef Q_INT16 + \relates <QtGlobal> + \compat + + Use \l qint16 instead. +*/ + +/*! + \typedef Q_UINT16 + \relates <QtGlobal> + \compat + + Use \l quint16 instead. +*/ + +/*! + \typedef Q_INT32 + \relates <QtGlobal> + \compat + + Use \l qint32 instead. +*/ + +/*! + \typedef Q_UINT32 + \relates <QtGlobal> + \compat + + Use \l quint32 instead. +*/ + +/*! + \typedef Q_INT64 + \relates <QtGlobal> + \compat + + Use \l qint64 instead. +*/ + +/*! + \typedef Q_UINT64 + \relates <QtGlobal> + \compat + + Use \l quint64 instead. +*/ + +/*! + \typedef Q_LLONG + \relates <QtGlobal> + \compat + + Use \l qint64 instead. +*/ + +/*! + \typedef Q_ULLONG + \relates <QtGlobal> + \compat + + Use \l quint64 instead. +*/ + +/*! + \typedef Q_LONG + \relates <QtGlobal> + \compat + + Use \c{void *} instead. +*/ + +/*! + \typedef Q_ULONG + \relates <QtGlobal> + \compat + + Use \c{void *} instead. +*/ + +/*! \fn bool qSysInfo(int *wordSize, bool *bigEndian) + \relates <QtGlobal> + + Use QSysInfo::WordSize and QSysInfo::ByteOrder instead. +*/ + +/*! + \fn bool qt_winUnicode() + \relates <QtGlobal> + + This function always returns true. + + \sa QSysInfo +*/ + +/*! + \fn int qWinVersion() + \relates <QtGlobal> + + Use QSysInfo::WindowsVersion instead. + + \sa QSysInfo +*/ + +/*! + \fn int qMacVersion() + \relates <QtGlobal> + + Use QSysInfo::MacintoshVersion instead. + + \sa QSysInfo +*/ + +/*! + \macro QT_VERSION_CHECK + \relates <QtGlobal> + + Turns the major, minor and patch numbers of a version into an + integer, 0xMMNNPP (MM = major, NN = minor, PP = patch). This can + be compared with another similarly processed version id. + + \sa QT_VERSION +*/ + +/*! + \macro QT_VERSION + \relates <QtGlobal> + + This macro expands a numeric value of the form 0xMMNNPP (MM = + major, NN = minor, PP = patch) that specifies Qt's version + number. For example, if you compile your application against Qt + 4.1.2, the QT_VERSION macro will expand to 0x040102. + + You can use QT_VERSION to use the latest Qt features where + available. + + Example: + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 16 + + \sa QT_VERSION_STR, qVersion() +*/ + +/*! + \macro QT_VERSION_STR + \relates <QtGlobal> + + This macro expands to a string that specifies Qt's version number + (for example, "4.1.2"). This is the version against which the + application is compiled. + + \sa qVersion(), QT_VERSION +*/ + +/*! + \relates <QtGlobal> + + Returns the version number of Qt at run-time as a string (for + example, "4.1.2"). This may be a different version than the + version the application was compiled against. + + \sa QT_VERSION_STR +*/ + +const char *qVersion() +{ + return QT_VERSION_STR; +} + +bool qSharedBuild() +{ +#ifdef QT_SHARED + return true; +#else + return false; +#endif +} + +/***************************************************************************** + System detection routines + *****************************************************************************/ + +/*! + \class QSysInfo + \brief The QSysInfo class provides information about the system. + + \list + \o \l WordSize specifies the size of a pointer for the platform + on which the application is compiled. + \o \l ByteOrder specifies whether the platform is big-endian or + little-endian. + \o \l WindowsVersion specifies the version of the Windows operating + system on which the application is run (Windows only) + \o \l MacintoshVersion specifies the version of the Macintosh + operating system on which the application is run (Mac only). + \endlist + + Some constants are defined only on certain platforms. You can use + the preprocessor symbols Q_WS_WIN and Q_WS_MAC to test that + the application is compiled under Windows or Mac. + + \sa QLibraryInfo +*/ + +/*! + \enum QSysInfo::Sizes + + This enum provides platform-specific information about the sizes of data + structures used by the underlying architecture. + + \value WordSize The size in bits of a pointer for the platform on which + the application is compiled (32 or 64). +*/ + +/*! + \variable QSysInfo::WindowsVersion + \brief the version of the Windows operating system on which the + application is run (Windows only) +*/ + +/*! + \fn QSysInfo::WindowsVersion QSysInfo::windowsVersion() + \since 4.4 + + Returns the version of the Windows operating system on which the + application is run (Windows only). +*/ + +/*! + \variable QSysInfo::MacintoshVersion + \brief the version of the Macintosh operating system on which + the application is run (Mac only). +*/ + +/*! + \fn QSysInfo::SymbianVersion QSysInfo::symbianVersion() + \since 4.6 + + Returns the version of the Symbian operating system on which the + application is run (Symbian only). +*/ + +/*! + \fn QSysInfo::S60Version QSysInfo::s60Version() + \since 4.6 + + Returns the version of the S60 SDK system on which the + application is run (S60 only). +*/ + +/*! + \enum QSysInfo::Endian + + \value BigEndian Big-endian byte order (also called Network byte order) + \value LittleEndian Little-endian byte order + \value ByteOrder Equals BigEndian or LittleEndian, depending on + the platform's byte order. +*/ + +/*! + \enum QSysInfo::WinVersion + + This enum provides symbolic names for the various versions of the + Windows operating system. On Windows, the + QSysInfo::WindowsVersion variable gives the version of the system + on which the application is run. + + MS-DOS-based versions: + + \value WV_32s Windows 3.1 with Win 32s + \value WV_95 Windows 95 + \value WV_98 Windows 98 + \value WV_Me Windows Me + + NT-based versions (note that each operating system version is only represented once rather than each Windows edition): + + \value WV_NT Windows NT (operating system version 4.0) + \value WV_2000 Windows 2000 (operating system version 5.0) + \value WV_XP Windows XP (operating system version 5.1) + \value WV_2003 Windows Server 2003, Windows Server 2003 R2, Windows Home Server, Windows XP Professional x64 Edition (operating system version 5.2) + \value WV_VISTA Windows Vista, Windows Server 2008 (operating system version 6.0) + \value WV_WINDOWS7 Windows 7, Windows Server 2008 R2 (operating system version 6.1) + + Alternatively, you may use the following macros which correspond directly to the Windows operating system version number: + + \value WV_4_0 Operating system version 4.0, corresponds to Windows NT + \value WV_5_0 Operating system version 5.0, corresponds to Windows 2000 + \value WV_5_1 Operating system version 5.1, corresponds to Windows XP + \value WV_5_2 Operating system version 5.2, corresponds to Windows Server 2003, Windows Server 2003 R2, Windows Home Server, and Windows XP Professional x64 Edition + \value WV_6_0 Operating system version 6.0, corresponds to Windows Vista and Windows Server 2008 + \value WV_6_1 Operating system version 6.1, corresponds to Windows 7 and Windows Server 2008 R2 + + CE-based versions: + + \value WV_CE Windows CE + \value WV_CENET Windows CE .NET + \value WV_CE_5 Windows CE 5.x + \value WV_CE_6 Windows CE 6.x + + The following masks can be used for testing whether a Windows + version is MS-DOS-based, NT-based, or CE-based: + + \value WV_DOS_based MS-DOS-based version of Windows + \value WV_NT_based NT-based version of Windows + \value WV_CE_based CE-based version of Windows + + \sa MacVersion, SymbianVersion +*/ + +/*! + \enum QSysInfo::MacVersion + + This enum provides symbolic names for the various versions of the + Macintosh operating system. On Mac, the + QSysInfo::MacintoshVersion variable gives the version of the + system on which the application is run. + + \value MV_9 Mac OS 9 (unsupported) + \value MV_10_0 Mac OS X 10.0 (unsupported) + \value MV_10_1 Mac OS X 10.1 (unsupported) + \value MV_10_2 Mac OS X 10.2 (unsupported) + \value MV_10_3 Mac OS X 10.3 + \value MV_10_4 Mac OS X 10.4 + \value MV_10_5 Mac OS X 10.5 + \value MV_10_6 Mac OS X 10.6 + \value MV_10_7 Mac OS X 10.7 + \value MV_Unknown An unknown and currently unsupported platform + + \value MV_CHEETAH Apple codename for MV_10_0 + \value MV_PUMA Apple codename for MV_10_1 + \value MV_JAGUAR Apple codename for MV_10_2 + \value MV_PANTHER Apple codename for MV_10_3 + \value MV_TIGER Apple codename for MV_10_4 + \value MV_LEOPARD Apple codename for MV_10_5 + \value MV_SNOWLEOPARD Apple codename for MV_10_6 + \value MV_LION Apple codename for MV_10_7 + + \sa WinVersion, SymbianVersion +*/ + +/*! + \enum QSysInfo::SymbianVersion + + This enum provides symbolic names for the various versions of the + Symbian operating system. On Symbian, the + QSysInfo::symbianVersion() function gives the version of the + system on which the application is run. + + \value SV_9_2 Symbian OS v9.2 + \value SV_9_3 Symbian OS v9.3 + \value SV_9_4 Symbian OS v9.4 + \value SV_SF_1 S60 5th Edition (Symbian^1) + \value SV_SF_2 Symbian^2 + \value SV_SF_3 Symbian^3 or Symbian Anna + \value SV_SF_4 \e{This enum value is deprecated.} + \value SV_API_5_3 Symbian/S60 API version 5.3 release + \value SV_API_5_4 Symbian/S60 API version 5.4 release + \value SV_Unknown An unknown and currently unsupported platform + + \sa S60Version, WinVersion, MacVersion +*/ + +/*! + \enum QSysInfo::S60Version + + This enum provides symbolic names for the various versions of the + S60 SDK. On S60, the + QSysInfo::s60Version() function gives the version of the + SDK on which the application is run. + + \value SV_S60_3_1 S60 3rd Edition Feature Pack 1 + \value SV_S60_3_2 S60 3rd Edition Feature Pack 2 + \value SV_S60_5_0 S60 5th Edition + \value SV_S60_5_1 \e{This enum value is deprecated.} + \value SV_S60_5_2 Symbian^3 and Symbian Anna + \value SV_S60_5_3 Symbian/S60 API version 5.3 release + \value SV_S60_5_4 Symbian/S60 API version 5.4 release + \value SV_S60_Unknown An unknown and currently unsupported platform + \omitvalue SV_S60_None + + \sa SymbianVersion, WinVersion, MacVersion +*/ + +/*! + \macro Q_WS_MAC + \relates <QtGlobal> + + Defined on Mac OS X. + + \sa Q_WS_WIN, Q_WS_X11, Q_WS_QWS, Q_WS_QPA, Q_WS_S60 +*/ + +/*! + \macro Q_WS_WIN + \relates <QtGlobal> + + Defined on Windows. + + \sa Q_WS_MAC, Q_WS_X11, Q_WS_QWS, Q_WS_QPA, Q_WS_S60 +*/ + +/*! + \macro Q_WS_X11 + \relates <QtGlobal> + + Defined on X11. + + \sa Q_WS_MAC, Q_WS_WIN, Q_WS_QWS, Q_WS_QPA, Q_WS_S60 +*/ + +/*! + \macro Q_WS_QWS + \relates <QtGlobal> + + Defined on Qt for Embedded Linux. + + \sa Q_WS_MAC, Q_WS_WIN, Q_WS_X11, Q_WS_QPA, Q_WS_S60 +*/ + +/*! + \macro Q_WS_QPA + \relates <QtGlobal> + + Defined on Qt for Embedded Linux, Lite version. + + \sa Q_WS_MAC, Q_WS_WIN, Q_WS_X11, Q_WS_QWS, Q_WS_S60 +*/ + +/*! + \macro Q_OS_DARWIN + \relates <QtGlobal> + + Defined on Darwin OS (synonym for Q_OS_MAC). +*/ + +/*! + \macro Q_OS_MSDOS + \relates <QtGlobal> + + Defined on MS-DOS and Windows. +*/ + +/*! + \macro Q_OS_OS2 + \relates <QtGlobal> + + Defined on OS/2. +*/ + +/*! + \macro Q_OS_OS2EMX + \relates <QtGlobal> + + Defined on XFree86 on OS/2 (not PM). +*/ + +/*! + \macro Q_OS_WIN32 + \relates <QtGlobal> + + Defined on all supported versions of Windows. +*/ + +/*! + \macro Q_OS_WINCE + \relates <QtGlobal> + + Defined on Windows CE. +*/ + +/*! + \macro Q_OS_CYGWIN + \relates <QtGlobal> + + Defined on Cygwin. +*/ + +/*! + \macro Q_OS_SOLARIS + \relates <QtGlobal> + + Defined on Sun Solaris. +*/ + +/*! + \macro Q_OS_HPUX + \relates <QtGlobal> + + Defined on HP-UX. +*/ + +/*! + \macro Q_OS_ULTRIX + \relates <QtGlobal> + + Defined on DEC Ultrix. +*/ + +/*! + \macro Q_OS_LINUX + \relates <QtGlobal> + + Defined on Linux. +*/ + +/*! + \macro Q_OS_FREEBSD + \relates <QtGlobal> + + Defined on FreeBSD. +*/ + +/*! + \macro Q_OS_NETBSD + \relates <QtGlobal> + + Defined on NetBSD. +*/ + +/*! + \macro Q_OS_OPENBSD + \relates <QtGlobal> + + Defined on OpenBSD. +*/ + +/*! + \macro Q_OS_BSDI + \relates <QtGlobal> + + Defined on BSD/OS. +*/ + +/*! + \macro Q_OS_IRIX + \relates <QtGlobal> + + Defined on SGI Irix. +*/ + +/*! + \macro Q_OS_OSF + \relates <QtGlobal> + + Defined on HP Tru64 UNIX. +*/ + +/*! + \macro Q_OS_SCO + \relates <QtGlobal> + + Defined on SCO OpenServer 5. +*/ + +/*! + \macro Q_OS_UNIXWARE + \relates <QtGlobal> + + Defined on UnixWare 7, Open UNIX 8. +*/ + +/*! + \macro Q_OS_AIX + \relates <QtGlobal> + + Defined on AIX. +*/ + +/*! + \macro Q_OS_HURD + \relates <QtGlobal> + + Defined on GNU Hurd. +*/ + +/*! + \macro Q_OS_DGUX + \relates <QtGlobal> + + Defined on DG/UX. +*/ + +/*! + \macro Q_OS_RELIANT + \relates <QtGlobal> + + Defined on Reliant UNIX. +*/ + +/*! + \macro Q_OS_DYNIX + \relates <QtGlobal> + + Defined on DYNIX/ptx. +*/ + +/*! + \macro Q_OS_QNX + \relates <QtGlobal> + + Defined on QNX Neutrino. +*/ + +/*! + \macro Q_OS_LYNX + \relates <QtGlobal> + + Defined on LynxOS. +*/ + +/*! + \macro Q_OS_BSD4 + \relates <QtGlobal> + + Defined on Any BSD 4.4 system. +*/ + +/*! + \macro Q_OS_UNIX + \relates <QtGlobal> + + Defined on Any UNIX BSD/SYSV system. +*/ + +/*! + \macro Q_CC_SYM + \relates <QtGlobal> + + Defined if the application is compiled using Digital Mars C/C++ + (used to be Symantec C++). +*/ + +/*! + \macro Q_CC_MWERKS + \relates <QtGlobal> + + Defined if the application is compiled using Metrowerks + CodeWarrior. +*/ + +/*! + \macro Q_CC_MSVC + \relates <QtGlobal> + + Defined if the application is compiled using Microsoft Visual + C/C++, Intel C++ for Windows. +*/ + +/*! + \macro Q_CC_BOR + \relates <QtGlobal> + + Defined if the application is compiled using Borland/Turbo C++. +*/ + +/*! + \macro Q_CC_WAT + \relates <QtGlobal> + + Defined if the application is compiled using Watcom C++. +*/ + +/*! + \macro Q_CC_GNU + \relates <QtGlobal> + + Defined if the application is compiled using GNU C++. +*/ + +/*! + \macro Q_CC_COMEAU + \relates <QtGlobal> + + Defined if the application is compiled using Comeau C++. +*/ + +/*! + \macro Q_CC_EDG + \relates <QtGlobal> + + Defined if the application is compiled using Edison Design Group + C++. +*/ + +/*! + \macro Q_CC_OC + \relates <QtGlobal> + + Defined if the application is compiled using CenterLine C++. +*/ + +/*! + \macro Q_CC_SUN + \relates <QtGlobal> + + Defined if the application is compiled using Forte Developer, or + Sun Studio C++. +*/ + +/*! + \macro Q_CC_MIPS + \relates <QtGlobal> + + Defined if the application is compiled using MIPSpro C++. +*/ + +/*! + \macro Q_CC_DEC + \relates <QtGlobal> + + Defined if the application is compiled using DEC C++. +*/ + +/*! + \macro Q_CC_HPACC + \relates <QtGlobal> + + Defined if the application is compiled using HP aC++. +*/ + +/*! + \macro Q_CC_USLC + \relates <QtGlobal> + + Defined if the application is compiled using SCO OUDK and UDK. +*/ + +/*! + \macro Q_CC_CDS + \relates <QtGlobal> + + Defined if the application is compiled using Reliant C++. +*/ + +/*! + \macro Q_CC_KAI + \relates <QtGlobal> + + Defined if the application is compiled using KAI C++. +*/ + +/*! + \macro Q_CC_INTEL + \relates <QtGlobal> + + Defined if the application is compiled using Intel C++ for Linux, + Intel C++ for Windows. +*/ + +/*! + \macro Q_CC_HIGHC + \relates <QtGlobal> + + Defined if the application is compiled using MetaWare High C/C++. +*/ + +/*! + \macro Q_CC_PGI + \relates <QtGlobal> + + Defined if the application is compiled using Portland Group C++. +*/ + +/*! + \macro Q_CC_GHS + \relates <QtGlobal> + + Defined if the application is compiled using Green Hills + Optimizing C++ Compilers. +*/ + +/*! + \macro Q_OS_MAC + \relates <QtGlobal> + + Defined on MAC OS (synonym for Darwin). + */ + +/*! + \macro Q_OS_SYMBIAN + \relates <QtGlobal> + + Defined on Symbian. + */ + +/*! + \macro Q_WS_S60 + \relates <QtGlobal> + + Defined on S60 with the Avkon UI framework. + + \sa Q_WS_MAC, Q_WS_WIN, Q_WS_X11, Q_WS_QWS + */ + +#if defined(QT_BUILD_QMAKE) +// needed to bootstrap qmake +static const unsigned int qt_one = 1; +const int QSysInfo::ByteOrder = ((*((unsigned char *) &qt_one) == 0) ? BigEndian : LittleEndian); +#endif + +#if !defined(QWS) && !defined(Q_WS_QPA) && defined(Q_OS_MAC) + +QT_BEGIN_INCLUDE_NAMESPACE +#include "private/qcore_mac_p.h" +#include "qnamespace.h" +QT_END_INCLUDE_NAMESPACE + +Q_CORE_EXPORT OSErr qt_mac_create_fsref(const QString &file, FSRef *fsref) +{ + return FSPathMakeRef(reinterpret_cast<const UInt8 *>(file.toUtf8().constData()), fsref, 0); +} + +// Don't use this function, it won't work in 10.5 (Leopard) and up +Q_CORE_EXPORT OSErr qt_mac_create_fsspec(const QString &file, FSSpec *spec) +{ + FSRef fsref; + OSErr ret = qt_mac_create_fsref(file, &fsref); + if (ret == noErr) + ret = FSGetCatalogInfo(&fsref, kFSCatInfoNone, 0, 0, spec, 0); + return ret; +} + +Q_CORE_EXPORT void qt_mac_to_pascal_string(QString s, Str255 str, TextEncoding encoding=0, int len=-1) +{ + if(len == -1) + len = s.length(); +#if 0 + UnicodeMapping mapping; + mapping.unicodeEncoding = CreateTextEncoding(kTextEncodingUnicodeDefault, + kTextEncodingDefaultVariant, + kUnicode16BitFormat); + mapping.otherEncoding = (encoding ? encoding : ); + mapping.mappingVersion = kUnicodeUseLatestMapping; + + UnicodeToTextInfo info; + OSStatus err = CreateUnicodeToTextInfo(&mapping, &info); + if(err != noErr) { + qDebug("Qt: internal: Unable to create pascal string '%s'::%d [%ld]", + s.left(len).latin1(), (int)encoding, err); + return; + } + const int unilen = len * 2; + const UniChar *unibuf = (UniChar *)s.unicode(); + ConvertFromUnicodeToPString(info, unilen, unibuf, str); + DisposeUnicodeToTextInfo(&info); +#else + Q_UNUSED(encoding); + CFStringGetPascalString(QCFString(s), str, 256, CFStringGetSystemEncoding()); +#endif +} + +Q_CORE_EXPORT QString qt_mac_from_pascal_string(const Str255 pstr) { + return QCFString(CFStringCreateWithPascalString(0, pstr, CFStringGetSystemEncoding())); +} +#endif //!defined(QWS) && !defined(Q_WS_QPA) && defined(Q_OS_MAC) + +#if !defined(QWS) && defined(Q_OS_MAC) + +static QSysInfo::MacVersion macVersion() +{ +#ifndef QT_NO_CORESERVICES + SInt32 gestalt_version; + if (Gestalt(gestaltSystemVersion, &gestalt_version) == noErr) { + return QSysInfo::MacVersion(((gestalt_version & 0x00F0) >> 4) + 2); + } +#endif + return QSysInfo::MV_Unknown; +} +const QSysInfo::MacVersion QSysInfo::MacintoshVersion = macVersion(); + +#elif defined(Q_OS_WIN32) || defined(Q_OS_CYGWIN) || defined(Q_OS_WINCE) + +QT_BEGIN_INCLUDE_NAMESPACE +#include "qt_windows.h" +QT_END_INCLUDE_NAMESPACE + +QSysInfo::WinVersion QSysInfo::windowsVersion() +{ +#ifndef VER_PLATFORM_WIN32s +#define VER_PLATFORM_WIN32s 0 +#endif +#ifndef VER_PLATFORM_WIN32_WINDOWS +#define VER_PLATFORM_WIN32_WINDOWS 1 +#endif +#ifndef VER_PLATFORM_WIN32_NT +#define VER_PLATFORM_WIN32_NT 2 +#endif +#ifndef VER_PLATFORM_WIN32_CE +#define VER_PLATFORM_WIN32_CE 3 +#endif + + static QSysInfo::WinVersion winver; + if (winver) + return winver; + winver = QSysInfo::WV_NT; + OSVERSIONINFO osver; + osver.dwOSVersionInfoSize = sizeof(osver); + GetVersionEx(&osver); +#ifdef Q_OS_WINCE + DWORD qt_cever = 0; + qt_cever = osver.dwMajorVersion * 100; + qt_cever += osver.dwMinorVersion * 10; +#endif + switch (osver.dwPlatformId) { + case VER_PLATFORM_WIN32s: + winver = QSysInfo::WV_32s; + break; + case VER_PLATFORM_WIN32_WINDOWS: + // We treat Windows Me (minor 90) the same as Windows 98 + if (osver.dwMinorVersion == 90) + winver = QSysInfo::WV_Me; + else if (osver.dwMinorVersion == 10) + winver = QSysInfo::WV_98; + else + winver = QSysInfo::WV_95; + break; +#ifdef Q_OS_WINCE + case VER_PLATFORM_WIN32_CE: + if (qt_cever >= 600) + winver = QSysInfo::WV_CE_6; + if (qt_cever >= 500) + winver = QSysInfo::WV_CE_5; + else if (qt_cever >= 400) + winver = QSysInfo::WV_CENET; + else + winver = QSysInfo::WV_CE; + break; +#endif + default: // VER_PLATFORM_WIN32_NT + if (osver.dwMajorVersion < 5) { + winver = QSysInfo::WV_NT; + } else if (osver.dwMajorVersion == 5 && osver.dwMinorVersion == 0) { + winver = QSysInfo::WV_2000; + } else if (osver.dwMajorVersion == 5 && osver.dwMinorVersion == 1) { + winver = QSysInfo::WV_XP; + } else if (osver.dwMajorVersion == 5 && osver.dwMinorVersion == 2) { + winver = QSysInfo::WV_2003; + } else if (osver.dwMajorVersion == 6 && osver.dwMinorVersion == 0) { + winver = QSysInfo::WV_VISTA; + } else if (osver.dwMajorVersion == 6 && osver.dwMinorVersion == 1) { + winver = QSysInfo::WV_WINDOWS7; + } else { + qWarning("Qt: Untested Windows version %d.%d detected!", + int(osver.dwMajorVersion), int(osver.dwMinorVersion)); + winver = QSysInfo::WV_NT_based; + } + } + +#ifdef QT_DEBUG + { + QByteArray override = qgetenv("QT_WINVER_OVERRIDE"); + if (override.isEmpty()) + return winver; + + if (override == "Me") + winver = QSysInfo::WV_Me; + if (override == "95") + winver = QSysInfo::WV_95; + else if (override == "98") + winver = QSysInfo::WV_98; + else if (override == "NT") + winver = QSysInfo::WV_NT; + else if (override == "2000") + winver = QSysInfo::WV_2000; + else if (override == "2003") + winver = QSysInfo::WV_2003; + else if (override == "XP") + winver = QSysInfo::WV_XP; + else if (override == "VISTA") + winver = QSysInfo::WV_VISTA; + else if (override == "WINDOWS7") + winver = QSysInfo::WV_WINDOWS7; + } +#endif + + return winver; +} + +const QSysInfo::WinVersion QSysInfo::WindowsVersion = QSysInfo::windowsVersion(); + +#endif + +#ifdef Q_OS_SYMBIAN +static QSysInfo::SymbianVersion cachedSymbianVersion = QSysInfo::SymbianVersion(-1); +static QSysInfo::S60Version cachedS60Version = QSysInfo::S60Version(-1); + +static void symbianInitVersions() +{ + // Use pure Symbian code, because if done using QDir, there will be a call back + // to this method, resulting doing this expensive operation twice before the cache kicks in. + // Pure Symbian code also makes this method ~10x faster, speeding up the application launch. + RFs rfs = qt_s60GetRFs(); + TFindFile fileFinder(rfs); + CDir* contents; + + // Check for platform version + TInt err = fileFinder.FindWildByDir(qt_S60Filter, qt_symbianSystemInstallDir, contents); + if (err == KErrNone) { + QScopedPointer<CDir> contentsDeleter(contents); + err = contents->Sort(EDescending|ESortByName); + if (err == KErrNone && contents->Count() > 0 && (*contents)[0].iName.Length() >= 12) { + TInt major = (*contents)[0].iName[9] - '0'; + TInt minor = (*contents)[0].iName[11] - '0'; + if (major == 3) { + if (minor == 1) { + cachedS60Version = QSysInfo::SV_S60_3_1; + cachedSymbianVersion = QSysInfo::SV_9_2; + } else if (minor == 2) { + cachedS60Version = QSysInfo::SV_S60_3_2; + cachedSymbianVersion = QSysInfo::SV_9_3; + } + } else if (major == 5) { + if (minor == 0) { + cachedS60Version = QSysInfo::SV_S60_5_0; + cachedSymbianVersion = QSysInfo::SV_9_4; + } else if (minor == 1) { + cachedS60Version = QSysInfo::SV_S60_5_1; + cachedSymbianVersion = QSysInfo::SV_SF_2; + } else if (minor == 2) { + cachedS60Version = QSysInfo::SV_S60_5_2; + cachedSymbianVersion = QSysInfo::SV_SF_3; + } else if (minor == 3) { + cachedS60Version = QSysInfo::SV_S60_5_3; + cachedSymbianVersion = QSysInfo::SV_API_5_3; + } else if (minor >= 4) { + cachedS60Version = QSysInfo::SV_S60_5_4; + cachedSymbianVersion = QSysInfo::SV_API_5_4; + } + } + } + } + +# ifdef Q_CC_NOKIAX86 + if (cachedS60Version == -1) { + // Some emulator environments may not contain the version specific .sis files, so + // simply hardcode the version on those environments. Note that can't use + // S60_VERSION_* defines for S60 3.x/5.0 platforms, as they do not define them + // right anyway in case .sis files are not found. +# if defined(__SERIES60_31__) + cachedS60Version = QSysInfo::SV_S60_3_1; + cachedSymbianVersion = QSysInfo::SV_9_2; +# elif defined(__S60_32__) + cachedS60Version = QSysInfo::SV_S60_3_2; + cachedSymbianVersion = QSysInfo::SV_9_3; +# elif defined(__S60_50__) + cachedS60Version = QSysInfo::SV_S60_5_0; + cachedSymbianVersion = QSysInfo::SV_9_4; +# elif defined(S60_VERSION_5_2) + cachedS60Version = QSysInfo::SV_S60_5_2; + cachedSymbianVersion = QSysInfo::SV_SF_3; +# elif defined(S60_VERSION_5_3) + cachedS60Version = QSysInfo::SV_S60_5_3; + cachedSymbianVersion = QSysInfo::SV_API_5_3; +# elif defined(S60_VERSION_5_4) + cachedS60Version = QSysInfo::SV_S60_5_4; + cachedSymbianVersion = QSysInfo::SV_API_5_4; +# endif + } +# endif + + if (cachedS60Version == -1) { + //If reaching here, it was not possible to determine the version + cachedS60Version = QSysInfo::SV_S60_Unknown; + cachedSymbianVersion = QSysInfo::SV_Unknown; + } +} + +QSysInfo::SymbianVersion QSysInfo::symbianVersion() +{ + if (cachedSymbianVersion == -1) + symbianInitVersions(); + + return cachedSymbianVersion; +} + +QSysInfo::S60Version QSysInfo::s60Version() +{ + if (cachedS60Version == -1) + symbianInitVersions(); + + return cachedS60Version; +} +#endif // ifdef Q_OS_SYMBIAN + +/*! + \macro void Q_ASSERT(bool test) + \relates <QtGlobal> + + Prints a warning message containing the source code file name and + line number if \a test is false. + + Q_ASSERT() is useful for testing pre- and post-conditions + during development. It does nothing if \c QT_NO_DEBUG was defined + during compilation. + + Example: + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 17 + + If \c b is zero, the Q_ASSERT statement will output the following + message using the qFatal() function: + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 18 + + \sa Q_ASSERT_X(), qFatal(), {Debugging Techniques} +*/ + +/*! + \macro void Q_ASSERT_X(bool test, const char *where, const char *what) + \relates <QtGlobal> + + Prints the message \a what together with the location \a where, + the source file name and line number if \a test is false. + + Q_ASSERT_X is useful for testing pre- and post-conditions during + development. It does nothing if \c QT_NO_DEBUG was defined during + compilation. + + Example: + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 19 + + If \c b is zero, the Q_ASSERT_X statement will output the following + message using the qFatal() function: + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 20 + + \sa Q_ASSERT(), qFatal(), {Debugging Techniques} +*/ + +/*! + \macro void Q_CHECK_PTR(void *pointer) + \relates <QtGlobal> + + If \a pointer is 0, prints a warning message containing the source + code's file name and line number, saying that the program ran out + of memory. + + Q_CHECK_PTR does nothing if \c QT_NO_DEBUG was defined during + compilation. + + Example: + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 21 + + \sa qWarning(), {Debugging Techniques} +*/ + +/*! + \fn T *q_check_ptr(T *pointer) + \relates <QtGlobal> + + Users Q_CHECK_PTR on \a pointer, then returns \a pointer. + + This can be used as an inline version of Q_CHECK_PTR. +*/ + +/*! + \macro const char* Q_FUNC_INFO() + \relates <QtGlobal> + + Expands to a string that describe the function the macro resides in. How this string looks + more specifically is compiler dependent. With GNU GCC it is typically the function signature, + while with other compilers it might be the line and column number. + + Q_FUNC_INFO can be conveniently used with qDebug(). For example, this function: + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 22 + + when instantiated with the integer type, will with the GCC compiler produce: + + \tt{const TInputType& myMin(const TInputType&, const TInputType&) [with TInputType = int] was called with value1: 3 value2: 4} + + If this macro is used outside a function, the behavior is undefined. + */ + +/* + The Q_CHECK_PTR macro calls this function if an allocation check + fails. +*/ +void qt_check_pointer(const char *n, int l) +{ + qFatal("In file %s, line %d: Out of memory", n, l); +} + +/* \internal + Allows you to throw an exception without including <new> + Called internally from Q_CHECK_PTR on certain OS combinations +*/ +void qBadAlloc() +{ + QT_THROW(std::bad_alloc()); +} + +/* + The Q_ASSERT macro calls this function when the test fails. +*/ +void qt_assert(const char *assertion, const char *file, int line) +{ + qFatal("ASSERT: \"%s\" in file %s, line %d", assertion, file, line); +} + +/* + The Q_ASSERT_X macro calls this function when the test fails. +*/ +void qt_assert_x(const char *where, const char *what, const char *file, int line) +{ + qFatal("ASSERT failure in %s: \"%s\", file %s, line %d", where, what, file, line); +} + + +/* + Dijkstra's bisection algorithm to find the square root of an integer. + Deliberately not exported as part of the Qt API, but used in both + qsimplerichtext.cpp and qgfxraster_qws.cpp +*/ +Q_CORE_EXPORT unsigned int qt_int_sqrt(unsigned int n) +{ + // n must be in the range 0...UINT_MAX/2-1 + if (n >= (UINT_MAX>>2)) { + unsigned int r = 2 * qt_int_sqrt(n / 4); + unsigned int r2 = r + 1; + return (n >= r2 * r2) ? r2 : r; + } + uint h, p= 0, q= 1, r= n; + while (q <= n) + q <<= 2; + while (q != 1) { + q >>= 2; + h= p + q; + p >>= 1; + if (r >= h) { + p += q; + r -= h; + } + } + return p; +} + +#if defined(qMemCopy) +# undef qMemCopy +#endif +#if defined(qMemSet) +# undef qMemSet +#endif + +void *qMemCopy(void *dest, const void *src, size_t n) { return memcpy(dest, src, n); } +void *qMemSet(void *dest, int c, size_t n) { return memset(dest, c, n); } + +static QtMsgHandler handler = 0; // pointer to debug handler + +#if defined(Q_CC_MWERKS) && defined(Q_OS_MACX) +extern bool qt_is_gui_used; +static void mac_default_handler(const char *msg) +{ + if (qt_is_gui_used) { + Str255 pmsg; + qt_mac_to_pascal_string(msg, pmsg); + DebugStr(pmsg); + } else { + fprintf(stderr, msg); + } +} +#endif // Q_CC_MWERKS && Q_OS_MACX + +#if !defined(Q_OS_WIN) && !defined(QT_NO_THREAD) && !defined(Q_OS_INTEGRITY) && !defined(Q_OS_QNX) && \ + defined(_POSIX_THREAD_SAFE_FUNCTIONS) && _POSIX_VERSION >= 200112L +namespace { + // There are two incompatible versions of strerror_r: + // a) the XSI/POSIX.1 version, which returns an int, + // indicating success or not + // b) the GNU version, which returns a char*, which may or may not + // be the beginning of the buffer we used + // The GNU libc manpage for strerror_r says you should use the the XSI + // version in portable code. However, it's impossible to do that if + // _GNU_SOURCE is defined so we use C++ overloading to decide what to do + // depending on the return type + static inline QString fromstrerror_helper(int, const QByteArray &buf) + { + return QString::fromLocal8Bit(buf); + } + static inline QString fromstrerror_helper(const char *str, const QByteArray &) + { + return QString::fromLocal8Bit(str); + } +} +#endif + +QString qt_error_string(int errorCode) +{ + const char *s = 0; + QString ret; + if (errorCode == -1) { +#if defined(Q_OS_WIN) + errorCode = GetLastError(); +#else + errorCode = errno; +#endif + } + switch (errorCode) { + case 0: + break; + case EACCES: + s = QT_TRANSLATE_NOOP("QIODevice", "Permission denied"); + break; + case EMFILE: + s = QT_TRANSLATE_NOOP("QIODevice", "Too many open files"); + break; + case ENOENT: + s = QT_TRANSLATE_NOOP("QIODevice", "No such file or directory"); + break; + case ENOSPC: + s = QT_TRANSLATE_NOOP("QIODevice", "No space left on device"); + break; + default: { +#ifdef Q_OS_WIN + wchar_t *string = 0; + FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER|FORMAT_MESSAGE_FROM_SYSTEM, + NULL, + errorCode, + MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), + (LPWSTR)&string, + 0, + NULL); + ret = QString::fromWCharArray(string); + LocalFree((HLOCAL)string); + + if (ret.isEmpty() && errorCode == ERROR_MOD_NOT_FOUND) + ret = QString::fromLatin1("The specified module could not be found."); +#elif !defined(QT_NO_THREAD) && defined(_POSIX_THREAD_SAFE_FUNCTIONS) && _POSIX_VERSION >= 200112L && !defined(Q_OS_INTEGRITY) && !defined(Q_OS_QNX) + QByteArray buf(1024, '\0'); + ret = fromstrerror_helper(strerror_r(errorCode, buf.data(), buf.size()), buf); +#else + ret = QString::fromLocal8Bit(strerror(errorCode)); +#endif + break; } + } + if (s) + // ######## this breaks moc build currently +// ret = QCoreApplication::translate("QIODevice", s); + ret = QString::fromLatin1(s); + return ret.trimmed(); +} + + +/*! + \fn QtMsgHandler qInstallMsgHandler(QtMsgHandler handler) + \relates <QtGlobal> + + Installs a Qt message \a handler which has been defined + previously. Returns a pointer to the previous message handler + (which may be 0). + + The message handler is a function that prints out debug messages, + warnings, critical and fatal error messages. The Qt library (debug + mode) contains hundreds of warning messages that are printed + when internal errors (usually invalid function arguments) + occur. Qt built in release mode also contains such warnings unless + QT_NO_WARNING_OUTPUT and/or QT_NO_DEBUG_OUTPUT have been set during + compilation. If you implement your own message handler, you get total + control of these messages. + + The default message handler prints the message to the standard + output under X11 or to the debugger under Windows. If it is a + fatal message, the application aborts immediately. + + Only one message handler can be defined, since this is usually + done on an application-wide basis to control debug output. + + To restore the message handler, call \c qInstallMsgHandler(0). + + Example: + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 23 + + \sa qDebug(), qWarning(), qCritical(), qFatal(), QtMsgType, + {Debugging Techniques} +*/ +#if defined(Q_OS_WIN) && defined(QT_BUILD_CORE_LIB) +extern bool usingWinMain; +extern Q_CORE_EXPORT void qWinMsgHandler(QtMsgType t, const char* str); +#endif + +QtMsgHandler qInstallMsgHandler(QtMsgHandler h) +{ + QtMsgHandler old = handler; + handler = h; +#if defined(Q_OS_WIN) && defined(QT_BUILD_CORE_LIB) + if (!handler && usingWinMain) + handler = qWinMsgHandler; +#endif + return old; +} + +/*! + \internal +*/ +void qt_message_output(QtMsgType msgType, const char *buf) +{ + if (handler) { + (*handler)(msgType, buf); + } else { +#if defined(Q_CC_MWERKS) && defined(Q_OS_MACX) + mac_default_handler(buf); +#elif defined(Q_OS_WINCE) + QString fstr = QString::fromLatin1(buf); + fstr += QLatin1Char('\n'); + OutputDebugString(reinterpret_cast<const wchar_t *> (fstr.utf16())); +#elif defined(Q_OS_SYMBIAN) + // RDebug::Print has a cap of 256 characters so break it up + _LIT(format, "[Qt Message] %S"); + const int maxBlockSize = 256 - ((const TDesC &)format).Length(); + const TPtrC8 ptr(reinterpret_cast<const TUint8*>(buf)); + HBufC* hbuffer = HBufC::New(qMin(maxBlockSize, ptr.Length())); + Q_CHECK_PTR(hbuffer); + for (int i = 0; i < ptr.Length(); i += hbuffer->Length()) { + hbuffer->Des().Copy(ptr.Mid(i, qMin(maxBlockSize, ptr.Length()-i))); + RDebug::Print(format, hbuffer); + } + delete hbuffer; +#else + fprintf(stderr, "%s\n", buf); + fflush(stderr); +#endif + } + + if (msgType == QtFatalMsg + || (msgType == QtWarningMsg + && (!qgetenv("QT_FATAL_WARNINGS").isNull())) ) { + +#if defined(Q_CC_MSVC) && defined(QT_DEBUG) && defined(_DEBUG) && defined(_CRT_ERROR) + // get the current report mode + int reportMode = _CrtSetReportMode(_CRT_ERROR, _CRTDBG_MODE_WNDW); + _CrtSetReportMode(_CRT_ERROR, reportMode); +#if !defined(Q_OS_WINCE) + int ret = _CrtDbgReport(_CRT_ERROR, __FILE__, __LINE__, QT_VERSION_STR, buf); +#else + int ret = _CrtDbgReportW(_CRT_ERROR, _CRT_WIDE(__FILE__), + __LINE__, _CRT_WIDE(QT_VERSION_STR), reinterpret_cast<const wchar_t *> (QString::fromLatin1(buf).utf16())); +#endif + if (ret == 0 && reportMode & _CRTDBG_MODE_WNDW) + return; // ignore + else if (ret == 1) + _CrtDbgBreak(); +#endif + +#if defined(Q_OS_SYMBIAN) + __DEBUGGER(); // on the emulator, get the debugger to kick in if there's one around + TBuf<256> tmp; + TPtrC8 ptr(reinterpret_cast<const TUint8*>(buf)); + TInt len = Min(tmp.MaxLength(), ptr.Length()); + tmp.Copy(ptr.Left(len)); + // Panic the current thread. We don't use real panic codes, so 0 has no special meaning. + User::Panic(tmp, 0); +#elif (defined(Q_OS_UNIX) || defined(Q_CC_MINGW)) + abort(); // trap; generates core dump +#else + exit(1); // goodbye cruel world +#endif + } +} + +#if !defined(QT_NO_EXCEPTIONS) +/*! + \internal + Uses a local buffer to output the message. Not locale safe + cuts off + everything after character 255, but will work in out of memory situations. +*/ +static void qEmergencyOut(QtMsgType msgType, const char *msg, va_list ap) +{ + char emergency_buf[256] = { '\0' }; + emergency_buf[255] = '\0'; + if (msg) + qvsnprintf(emergency_buf, 255, msg, ap); + qt_message_output(msgType, emergency_buf); +} +#endif + +/*! + \internal +*/ +static void qt_message(QtMsgType msgType, const char *msg, va_list ap) +{ +#if !defined(QT_NO_EXCEPTIONS) + if (std::uncaught_exception()) { + qEmergencyOut(msgType, msg, ap); + return; + } +#endif + QByteArray buf; + if (msg) { + QT_TRY { + buf = QString().vsprintf(msg, ap).toLocal8Bit(); + } QT_CATCH(const std::bad_alloc &) { +#if !defined(QT_NO_EXCEPTIONS) + qEmergencyOut(msgType, msg, ap); + // don't rethrow - we use qWarning and friends in destructors. + return; +#endif + } + } + qt_message_output(msgType, buf.constData()); +} + +#undef qDebug +/*! + \relates <QtGlobal> + + Calls the message handler with the debug message \a msg. If no + message handler has been installed, the message is printed to + stderr. Under Windows, the message is sent to the console, if it is a + console application; otherwise, it is sent to the debugger. This + function does nothing if \c QT_NO_DEBUG_OUTPUT was defined + during compilation. + + If you pass the function a format string and a list of arguments, + it works in similar way to the C printf() function. The format + should be a Latin-1 string. + + Example: + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 24 + + If you include \c <QtDebug>, a more convenient syntax is also + available: + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 25 + + With this syntax, the function returns a QDebug object that is + configured to use the QtDebugMsg message type. It automatically + puts a single space between each item, and outputs a newline at + the end. It supports many C++ and Qt types. + + To suppress the output at run-time, install your own message handler + with qInstallMsgHandler(). + + \sa qWarning(), qCritical(), qFatal(), qInstallMsgHandler(), + {Debugging Techniques} +*/ +void qDebug(const char *msg, ...) +{ + va_list ap; + va_start(ap, msg); // use variable arg list + qt_message(QtDebugMsg, msg, ap); + va_end(ap); +} + +#undef qWarning +/*! + \relates <QtGlobal> + + Calls the message handler with the warning message \a msg. If no + message handler has been installed, the message is printed to + stderr. Under Windows, the message is sent to the debugger. This + function does nothing if \c QT_NO_WARNING_OUTPUT was defined + during compilation; it exits if the environment variable \c + QT_FATAL_WARNINGS is defined. + + This function takes a format string and a list of arguments, + similar to the C printf() function. The format should be a Latin-1 + string. + + Example: + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 26 + + If you include <QtDebug>, a more convenient syntax is + also available: + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 27 + + This syntax inserts a space between each item, and + appends a newline at the end. + + To suppress the output at runtime, install your own message handler + with qInstallMsgHandler(). + + \sa qDebug(), qCritical(), qFatal(), qInstallMsgHandler(), + {Debugging Techniques} +*/ +void qWarning(const char *msg, ...) +{ + va_list ap; + va_start(ap, msg); // use variable arg list + qt_message(QtWarningMsg, msg, ap); + va_end(ap); +} + +/*! + \relates <QtGlobal> + + Calls the message handler with the critical message \a msg. If no + message handler has been installed, the message is printed to + stderr. Under Windows, the message is sent to the debugger. + + This function takes a format string and a list of arguments, + similar to the C printf() function. The format should be a Latin-1 + string. + + Example: + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 28 + + If you include <QtDebug>, a more convenient syntax is + also available: + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 29 + + A space is inserted between the items, and a newline is + appended at the end. + + To suppress the output at runtime, install your own message handler + with qInstallMsgHandler(). + + \sa qDebug(), qWarning(), qFatal(), qInstallMsgHandler(), + {Debugging Techniques} +*/ +void qCritical(const char *msg, ...) +{ + va_list ap; + va_start(ap, msg); // use variable arg list + qt_message(QtCriticalMsg, msg, ap); + va_end(ap); +} + +#ifdef QT3_SUPPORT +void qSystemWarning(const char *msg, int code) + { qCritical("%s (%s)", msg, qt_error_string(code).toLocal8Bit().constData()); } +#endif // QT3_SUPPORT + +void qErrnoWarning(const char *msg, ...) +{ + // qt_error_string() will allocate anyway, so we don't have + // to be careful here (like we do in plain qWarning()) + QString buf; + va_list ap; + va_start(ap, msg); + if (msg) + buf.vsprintf(msg, ap); + va_end(ap); + + qCritical("%s (%s)", buf.toLocal8Bit().constData(), qt_error_string(-1).toLocal8Bit().constData()); +} + +void qErrnoWarning(int code, const char *msg, ...) +{ + // qt_error_string() will allocate anyway, so we don't have + // to be careful here (like we do in plain qWarning()) + QString buf; + va_list ap; + va_start(ap, msg); + if (msg) + buf.vsprintf(msg, ap); + va_end(ap); + + qCritical("%s (%s)", buf.toLocal8Bit().constData(), qt_error_string(code).toLocal8Bit().constData()); +} + +/*! + \relates <QtGlobal> + + Calls the message handler with the fatal message \a msg. If no + message handler has been installed, the message is printed to + stderr. Under Windows, the message is sent to the debugger. + + If you are using the \bold{default message handler} this function will + abort on Unix systems to create a core dump. On Windows, for debug builds, + this function will report a _CRT_ERROR enabling you to connect a debugger + to the application. + + This function takes a format string and a list of arguments, + similar to the C printf() function. + + Example: + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 30 + + To suppress the output at runtime, install your own message handler + with qInstallMsgHandler(). + + \sa qDebug(), qCritical(), qWarning(), qInstallMsgHandler(), + {Debugging Techniques} +*/ +void qFatal(const char *msg, ...) +{ + va_list ap; + va_start(ap, msg); // use variable arg list + qt_message(QtFatalMsg, msg, ap); + va_end(ap); +} + +// getenv is declared as deprecated in VS2005. This function +// makes use of the new secure getenv function. +/*! + \relates <QtGlobal> + + Returns the value of the environment variable with name \a + varName. To get the variable string, use QByteArray::constData(). + + \note qgetenv() was introduced because getenv() from the standard + C library was deprecated in VC2005 (and later versions). qgetenv() + uses the new replacement function in VC, and calls the standard C + library's implementation on all other platforms. + + \sa qputenv() +*/ +QByteArray qgetenv(const char *varName) +{ +#if defined(_MSC_VER) && _MSC_VER >= 1400 + size_t requiredSize = 0; + QByteArray buffer; + getenv_s(&requiredSize, 0, 0, varName); + if (requiredSize == 0) + return buffer; + buffer.resize(int(requiredSize)); + getenv_s(&requiredSize, buffer.data(), requiredSize, varName); + // requiredSize includes the terminating null, which we don't want. + Q_ASSERT(buffer.endsWith('\0')); + buffer.chop(1); + return buffer; +#else + return QByteArray(::getenv(varName)); +#endif +} + +/*! + \relates <QtGlobal> + + This function sets the \a value of the environment variable named + \a varName. It will create the variable if it does not exist. It + returns 0 if the variable could not be set. + + \note qputenv() was introduced because putenv() from the standard + C library was deprecated in VC2005 (and later versions). qputenv() + uses the replacement function in VC, and calls the standard C + library's implementation on all other platforms. + + \sa qgetenv() +*/ +bool qputenv(const char *varName, const QByteArray& value) +{ +#if defined(_MSC_VER) && _MSC_VER >= 1400 + return _putenv_s(varName, value.constData()) == 0; +#else + QByteArray buffer(varName); + buffer += '='; + buffer += value; + char* envVar = qstrdup(buffer.constData()); + int result = putenv(envVar); + if (result != 0) // error. we have to delete the string. + delete[] envVar; + return result == 0; +#endif +} + +#if defined(Q_OS_UNIX) && !defined(Q_OS_SYMBIAN) && !defined(QT_NO_THREAD) + +# if defined(Q_OS_INTEGRITY) && defined(__GHS_VERSION_NUMBER) && (__GHS_VERSION_NUMBER < 500) +// older versions of INTEGRITY used a long instead of a uint for the seed. +typedef long SeedStorageType; +# else +typedef uint SeedStorageType; +# endif + +typedef QThreadStorage<SeedStorageType *> SeedStorage; +Q_GLOBAL_STATIC(SeedStorage, randTLS) // Thread Local Storage for seed value + +#endif + +/*! + \relates <QtGlobal> + \since 4.2 + + Thread-safe version of the standard C++ \c srand() function. + + Sets the argument \a seed to be used to generate a new random number sequence of + pseudo random integers to be returned by qrand(). + + The sequence of random numbers generated is deterministic per thread. For example, + if two threads call qsrand(1) and subsequently calls qrand(), the threads will get + the same random number sequence. + + \sa qrand() +*/ +void qsrand(uint seed) +{ +#if defined(Q_OS_UNIX) && !defined(Q_OS_SYMBIAN) && !defined(QT_NO_THREAD) + SeedStorage *seedStorage = randTLS(); + if (seedStorage) { + SeedStorageType *pseed = seedStorage->localData(); + if (!pseed) + seedStorage->setLocalData(pseed = new SeedStorageType); + *pseed = seed; + } else { + //global static seed storage should always exist, + //except after being deleted by QGlobalStaticDeleter. + //But since it still can be called from destructor of another + //global static object, fallback to srand(seed) + srand(seed); + } +#else + // On Windows and Symbian srand() and rand() already use Thread-Local-Storage + // to store the seed between calls + // this is also valid for QT_NO_THREAD + srand(seed); +#endif +} + +/*! + \relates <QtGlobal> + \since 4.2 + + Thread-safe version of the standard C++ \c rand() function. + + Returns a value between 0 and \c RAND_MAX (defined in \c <cstdlib> and + \c <stdlib.h>), the next number in the current sequence of pseudo-random + integers. + + Use \c qsrand() to initialize the pseudo-random number generator with + a seed value. + + \sa qsrand() +*/ +int qrand() +{ +#if defined(Q_OS_UNIX) && !defined(Q_OS_SYMBIAN) && !defined(QT_NO_THREAD) + SeedStorage *seedStorage = randTLS(); + if (seedStorage) { + SeedStorageType *pseed = seedStorage->localData(); + if (!pseed) { + seedStorage->setLocalData(pseed = new SeedStorageType); + *pseed = 1; + } + return rand_r(pseed); + } else { + //global static seed storage should always exist, + //except after being deleted by QGlobalStaticDeleter. + //But since it still can be called from destructor of another + //global static object, fallback to rand() + return rand(); + } +#else + // On Windows and Symbian srand() and rand() already use Thread-Local-Storage + // to store the seed between calls + // this is also valid for QT_NO_THREAD + return rand(); +#endif +} + +/*! + \macro forever + \relates <QtGlobal> + + This macro is provided for convenience for writing infinite + loops. + + Example: + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 31 + + It is equivalent to \c{for (;;)}. + + If you're worried about namespace pollution, you can disable this + macro by adding the following line to your \c .pro file: + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 32 + + \sa Q_FOREVER +*/ + +/*! + \macro Q_FOREVER + \relates <QtGlobal> + + Same as \l{forever}. + + This macro is available even when \c no_keywords is specified + using the \c .pro file's \c CONFIG variable. + + \sa foreach() +*/ + +/*! + \macro foreach(variable, container) + \relates <QtGlobal> + + This macro is used to implement Qt's \c foreach loop. The \a + variable parameter is a variable name or variable definition; the + \a container parameter is a Qt container whose value type + corresponds to the type of the variable. See \l{The foreach + Keyword} for details. + + If you're worried about namespace pollution, you can disable this + macro by adding the following line to your \c .pro file: + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 33 + + \sa Q_FOREACH() +*/ + +/*! + \macro Q_FOREACH(variable, container) + \relates <QtGlobal> + + Same as foreach(\a variable, \a container). + + This macro is available even when \c no_keywords is specified + using the \c .pro file's \c CONFIG variable. + + \sa foreach() +*/ + +/*! + \macro QT_TR_NOOP(sourceText) + \relates <QtGlobal> + + Marks the string literal \a sourceText for dynamic translation in + the current context (class), i.e the stored \a sourceText will not + be altered. + + The macro expands to \a sourceText. + + Example: + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 34 + + The macro QT_TR_NOOP_UTF8() is identical except that it tells lupdate + that the source string is encoded in UTF-8. Corresponding variants + exist in the QT_TRANSLATE_NOOP() family of macros, too. Note that + using these macros is not required if \c CODECFORTR is already set to + UTF-8 in the qmake project file. + + \sa QT_TRANSLATE_NOOP(), {Internationalization with Qt} +*/ + +/*! + \macro QT_TRANSLATE_NOOP(context, sourceText) + \relates <QtGlobal> + + Marks the string literal \a sourceText for dynamic translation in + the given \a context; i.e, the stored \a sourceText will not be + altered. The \a context is typically a class and also needs to + be specified as string literal. + + The macro expands to \a sourceText. + + Example: + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 35 + + \sa QT_TR_NOOP(), QT_TRANSLATE_NOOP3(), {Internationalization with Qt} +*/ + +/*! + \macro QT_TRANSLATE_NOOP3(context, sourceText, comment) + \relates <QtGlobal> + \since 4.4 + + Marks the string literal \a sourceText for dynamic translation in the + given \a context and with \a comment, i.e the stored \a sourceText will + not be altered. The \a context is typically a class and also needs to + be specified as string literal. The string literal \a comment + will be available for translators using e.g. Qt Linguist. + + The macro expands to anonymous struct of the two string + literals passed as \a sourceText and \a comment. + + Example: + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 36 + + \sa QT_TR_NOOP(), QT_TRANSLATE_NOOP(), {Internationalization with Qt} +*/ + +/*! + \fn QString qtTrId(const char *id, int n = -1) + \relates <QtGlobal> + \reentrant + \since 4.6 + + \brief The qtTrId function finds and returns a translated string. + + Returns a translated string identified by \a id. + If no matching string is found, the id itself is returned. This + should not happen under normal conditions. + + If \a n >= 0, all occurrences of \c %n in the resulting string + are replaced with a decimal representation of \a n. In addition, + depending on \a n's value, the translation text may vary. + + Meta data and comments can be passed as documented for QObject::tr(). + In addition, it is possible to supply a source string template like that: + + \tt{//% <C string>} + + or + + \tt{\begincomment% <C string> \endcomment} + + Example: + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp qttrid + + Creating QM files suitable for use with this function requires passing + the \c -idbased option to the \c lrelease tool. + + \warning This method is reentrant only if all translators are + installed \e before calling this method. Installing or removing + translators while performing translations is not supported. Doing + so will probably result in crashes or other undesirable behavior. + + \sa QObject::tr(), QCoreApplication::translate(), {Internationalization with Qt} +*/ + +/*! + \macro QT_TRID_NOOP(id) + \relates <QtGlobal> + \since 4.6 + + \brief The QT_TRID_NOOP macro marks an id for dynamic translation. + + The only purpose of this macro is to provide an anchor for attaching + meta data like to qtTrId(). + + The macro expands to \a id. + + Example: + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp qttrid_noop + + \sa qtTrId(), {Internationalization with Qt} +*/ + +/*! + \macro Q_LIKELY(expr) + \relates <QtGlobal> + \since 4.8 + + \brief Hints the compiler that the enclosed condition is likely to evaluate + to \c true. + + Use of this macro can help the compiler to optimize the code. + + Example: + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp qlikely + + \sa Q_UNLIKELY() +*/ + +/*! + \macro Q_UNLIKELY(expr) + \relates <QtGlobal> + \since 4.8 + + \brief Hints the compiler that the enclosed condition is likely to evaluate + to \c false. + + Use of this macro can help the compiler to optimize the code. + + Example: + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp qunlikely + + \sa Q_LIKELY() +*/ + +/*! + \macro QT_POINTER_SIZE + \relates <QtGlobal> + + Expands to the size of a pointer in bytes (4 or 8). This is + equivalent to \c sizeof(void *) but can be used in a preprocessor + directive. +*/ + +/*! + \macro TRUE + \relates <QtGlobal> + \obsolete + + Synonym for \c true. + + \sa FALSE +*/ + +/*! + \macro FALSE + \relates <QtGlobal> + \obsolete + + Synonym for \c false. + + \sa TRUE +*/ + +/*! + \macro QABS(n) + \relates <QtGlobal> + \obsolete + + Use qAbs(\a n) instead. + + \sa QMIN(), QMAX() +*/ + +/*! + \macro QMIN(x, y) + \relates <QtGlobal> + \obsolete + + Use qMin(\a x, \a y) instead. + + \sa QMAX(), QABS() +*/ + +/*! + \macro QMAX(x, y) + \relates <QtGlobal> + \obsolete + + Use qMax(\a x, \a y) instead. + + \sa QMIN(), QABS() +*/ + +/*! + \macro const char *qPrintable(const QString &str) + \relates <QtGlobal> + + Returns \a str as a \c{const char *}. This is equivalent to + \a{str}.toLocal8Bit().constData(). + + The char pointer will be invalid after the statement in which + qPrintable() is used. This is because the array returned by + toLocal8Bit() will fall out of scope. + + Example: + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 37 + + + \sa qDebug(), qWarning(), qCritical(), qFatal() +*/ + +/*! + \macro Q_DECLARE_TYPEINFO(Type, Flags) + \relates <QtGlobal> + + You can use this macro to specify information about a custom type + \a Type. With accurate type information, Qt's \l{Container Classes} + {generic containers} can choose appropriate storage methods and + algorithms. + + \a Flags can be one of the following: + + \list + \o \c Q_PRIMITIVE_TYPE specifies that \a Type is a POD (plain old + data) type with no constructor or destructor. + \o \c Q_MOVABLE_TYPE specifies that \a Type has a constructor + and/or a destructor but can be moved in memory using \c + memcpy(). + \o \c Q_COMPLEX_TYPE (the default) specifies that \a Type has + constructors and/or a destructor and that it may not be moved + in memory. + \endlist + + Example of a "primitive" type: + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 38 + + Example of a movable type: + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 39 +*/ + +/*! + \macro Q_UNUSED(name) + \relates <QtGlobal> + + Indicates to the compiler that the parameter with the specified + \a name is not used in the body of a function. This can be used to + suppress compiler warnings while allowing functions to be defined + with meaningful parameter names in their signatures. +*/ + +#if defined(QT3_SUPPORT) && !defined(QT_NO_SETTINGS) +QT_BEGIN_INCLUDE_NAMESPACE +#include <qlibraryinfo.h> +QT_END_INCLUDE_NAMESPACE + +static const char *qInstallLocation(QLibraryInfo::LibraryLocation loc) +{ + static QByteArray ret; + ret = QLibraryInfo::location(loc).toLatin1(); + return ret.constData(); +} +const char *qInstallPath() +{ + return qInstallLocation(QLibraryInfo::PrefixPath); +} +const char *qInstallPathDocs() +{ + return qInstallLocation(QLibraryInfo::DocumentationPath); +} +const char *qInstallPathHeaders() +{ + return qInstallLocation(QLibraryInfo::HeadersPath); +} +const char *qInstallPathLibs() +{ + return qInstallLocation(QLibraryInfo::LibrariesPath); +} +const char *qInstallPathBins() +{ + return qInstallLocation(QLibraryInfo::BinariesPath); +} +const char *qInstallPathPlugins() +{ + return qInstallLocation(QLibraryInfo::PluginsPath); +} +const char *qInstallPathData() +{ + return qInstallLocation(QLibraryInfo::DataPath); +} +const char *qInstallPathTranslations() +{ + return qInstallLocation(QLibraryInfo::TranslationsPath); +} +const char *qInstallPathSysconf() +{ + return qInstallLocation(QLibraryInfo::SettingsPath); +} +#endif + +struct QInternal_CallBackTable { + QVector<QList<qInternalCallback> > callbacks; +}; + +Q_GLOBAL_STATIC(QInternal_CallBackTable, global_callback_table) + +bool QInternal::registerCallback(Callback cb, qInternalCallback callback) +{ + if (cb >= 0 && cb < QInternal::LastCallback) { + QInternal_CallBackTable *cbt = global_callback_table(); + cbt->callbacks.resize(cb + 1); + cbt->callbacks[cb].append(callback); + return true; + } + return false; +} + +bool QInternal::unregisterCallback(Callback cb, qInternalCallback callback) +{ + if (cb >= 0 && cb < QInternal::LastCallback) { + QInternal_CallBackTable *cbt = global_callback_table(); + return (bool) cbt->callbacks[cb].removeAll(callback); + } + return false; +} + +bool QInternal::activateCallbacks(Callback cb, void **parameters) +{ + Q_ASSERT_X(cb >= 0, "QInternal::activateCallback()", "Callback id must be a valid id"); + + QInternal_CallBackTable *cbt = global_callback_table(); + if (cbt && cb < cbt->callbacks.size()) { + QList<qInternalCallback> callbacks = cbt->callbacks[cb]; + bool ret = false; + for (int i=0; i<callbacks.size(); ++i) + ret |= (callbacks.at(i))(parameters); + return ret; + } + return false; +} + +extern void qt_set_current_thread_to_main_thread(); + +bool QInternal::callFunction(InternalFunction func, void **args) +{ + Q_ASSERT_X(func >= 0, + "QInternal::callFunction()", "Callback id must be a valid id"); +#ifndef QT_NO_QOBJECT + switch (func) { +#ifndef QT_NO_THREAD + case QInternal::CreateThreadForAdoption: + *args = QAdoptedThread::createThreadForAdoption(); + return true; +#endif + case QInternal::RefAdoptedThread: + QThreadData::get2((QThread *) *args)->ref(); + return true; + case QInternal::DerefAdoptedThread: + QThreadData::get2((QThread *) *args)->deref(); + return true; + case QInternal::SetCurrentThreadToMainThread: + qt_set_current_thread_to_main_thread(); + return true; + case QInternal::SetQObjectSender: { + QObject *receiver = (QObject *) args[0]; + QObjectPrivate::Sender *sender = new QObjectPrivate::Sender; + sender->sender = (QObject *) args[1]; + sender->signal = *(int *) args[2]; + sender->ref = 1; + + // Store the old sender as "return value" + args[3] = QObjectPrivate::setCurrentSender(receiver, sender); + args[4] = sender; + return true; + } + case QInternal::GetQObjectSender: { + QObject *receiver = (QObject *) args[0]; + QObjectPrivate *d = QObjectPrivate::get(receiver); + args[1] = d->currentSender ? d->currentSender->sender : 0; + return true; + } + case QInternal::ResetQObjectSender: { + QObject *receiver = (QObject *) args[0]; + QObjectPrivate::Sender *oldSender = (QObjectPrivate::Sender *) args[1]; + QObjectPrivate::Sender *sender = (QObjectPrivate::Sender *) args[2]; + QObjectPrivate::resetCurrentSender(receiver, sender, oldSender); + delete sender; + return true; + } + + default: + break; + } +#else + Q_UNUSED(args); + Q_UNUSED(func); +#endif + + return false; +} + +/*! + \macro Q_BYTE_ORDER + \relates <QtGlobal> + + This macro can be used to determine the byte order your system + uses for storing data in memory. i.e., whether your system is + little-endian or big-endian. It is set by Qt to one of the macros + Q_LITTLE_ENDIAN or Q_BIG_ENDIAN. You normally won't need to worry + about endian-ness, but you might, for example if you need to know + which byte of an integer or UTF-16 character is stored in the + lowest address. Endian-ness is important in networking, where + computers with different values for Q_BYTE_ORDER must pass data + back and forth. + + Use this macro as in the following examples. + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 40 + + \sa Q_BIG_ENDIAN, Q_LITTLE_ENDIAN +*/ + +/*! + \macro Q_LITTLE_ENDIAN + \relates <QtGlobal> + + This macro represents a value you can compare to the macro + Q_BYTE_ORDER to determine the endian-ness of your system. In a + little-endian system, the least significant byte is stored at the + lowest address. The other bytes follow in increasing order of + significance. + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 41 + + \sa Q_BYTE_ORDER, Q_BIG_ENDIAN +*/ + +/*! + \macro Q_BIG_ENDIAN + \relates <QtGlobal> + + This macro represents a value you can compare to the macro + Q_BYTE_ORDER to determine the endian-ness of your system. In a + big-endian system, the most significant byte is stored at the + lowest address. The other bytes follow in decreasing order of + significance. + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 42 + + \sa Q_BYTE_ORDER, Q_LITTLE_ENDIAN +*/ + +/*! + \macro Q_GLOBAL_STATIC(type, name) + \internal + + Declares a global static variable with the given \a type and \a name. + + Use this macro to instantiate an object in a thread-safe way, creating + a global pointer that can be used to refer to it. + + \warning This macro is subject to a race condition that can cause the object + to be constructed twice. However, if this occurs, the second instance will + be immediately deleted. + + See also + \l{http://www.aristeia.com/publications.html}{"C++ and the perils of Double-Checked Locking"} + by Scott Meyers and Andrei Alexandrescu. +*/ + +/*! + \macro Q_GLOBAL_STATIC_WITH_ARGS(type, name, arguments) + \internal + + Declares a global static variable with the specified \a type and \a name. + + Use this macro to instantiate an object using the \a arguments specified + in a thread-safe way, creating a global pointer that can be used to refer + to it. + + \warning This macro is subject to a race condition that can cause the object + to be constructed twice. However, if this occurs, the second instance will + be immediately deleted. + + See also + \l{http://www.aristeia.com/publications.html}{"C++ and the perils of Double-Checked Locking"} + by Scott Meyers and Andrei Alexandrescu. +*/ + +/*! + \macro QT_NAMESPACE + \internal + + If this macro is defined to \c ns all Qt classes are put in a namespace + called \c ns. Also, moc will output code putting metaobjects etc. + into namespace \c ns. + + \sa QT_BEGIN_NAMESPACE, QT_END_NAMESPACE, + QT_PREPEND_NAMESPACE, QT_USE_NAMESPACE, + QT_BEGIN_INCLUDE_NAMESPACE, QT_END_INCLUDE_NAMESPACE, + QT_BEGIN_MOC_NAMESPACE, QT_END_MOC_NAMESPACE, +*/ + +/*! + \macro QT_PREPEND_NAMESPACE(identifier) + \internal + + This macro qualifies \a identifier with the full namespace. + It expands to \c{::QT_NAMESPACE::identifier} if \c QT_NAMESPACE is defined + and only \a identifier otherwise. + + \sa QT_NAMESPACE +*/ + +/*! + \macro QT_USE_NAMESPACE + \internal + + This macro expands to using QT_NAMESPACE if QT_NAMESPACE is defined + and nothing otherwise. + + \sa QT_NAMESPACE +*/ + +/*! + \macro QT_BEGIN_NAMESPACE + \internal + + This macro expands to + + \snippet snippets/code/src_corelib_global_qglobal.cpp begin namespace macro + + if \c QT_NAMESPACE is defined and nothing otherwise. If should always + appear in the file-level scope and be followed by \c QT_END_NAMESPACE + at the same logical level with respect to preprocessor conditionals + in the same file. + + As a rule of thumb, \c QT_BEGIN_NAMESPACE should appear in all Qt header + and Qt source files after the last \c{#include} line and before the first + declaration. In Qt headers using \c QT_BEGIN_HEADER, \c QT_BEGIN_NAMESPACE + follows \c QT_BEGIN_HEADER immediately. + + If that rule can't be followed because, e.g., \c{#include} lines and + declarations are wildly mixed, place \c QT_BEGIN_NAMESPACE before + the first declaration and wrap the \c{#include} lines in + \c QT_BEGIN_INCLUDE_NAMESPACE and \c QT_END_INCLUDE_NAMESPACE. + + When using the \c QT_NAMESPACE feature in user code + (e.g., when building plugins statically linked to Qt) where + the user code is not intended to go into the \c QT_NAMESPACE + namespace, all forward declarations of Qt classes need to + be wrapped in \c QT_BEGIN_NAMESPACE and \c QT_END_NAMESPACE. + After that, a \c QT_USE_NAMESPACE should follow. + No further changes should be needed. + + \sa QT_NAMESPACE +*/ + +/*! + \macro QT_END_NAMESPACE + \internal + + This macro expands to + + \snippet snippets/code/src_corelib_global_qglobal.cpp end namespace macro + + if \c QT_NAMESPACE is defined and nothing otherwise. It is used to cancel + the effect of \c QT_BEGIN_NAMESPACE. + + If a source file ends with a \c{#include} directive that includes a moc file, + \c QT_END_NAMESPACE should be placed before that \c{#include}. + + \sa QT_NAMESPACE +*/ + +/*! + \macro QT_BEGIN_INCLUDE_NAMESPACE + \internal + + This macro is equivalent to \c QT_END_NAMESPACE. + It only serves as syntactic sugar and is intended + to be used before #include lines within a + \c QT_BEGIN_NAMESPACE ... \c QT_END_NAMESPACE block. + + \sa QT_NAMESPACE +*/ + +/*! + \macro QT_END_INCLUDE_NAMESPACE + \internal + + This macro is equivalent to \c QT_BEGIN_NAMESPACE. + It only serves as syntactic sugar and is intended + to be used after #include lines within a + \c QT_BEGIN_NAMESPACE ... \c QT_END_NAMESPACE block. + + \sa QT_NAMESPACE +*/ + +/*! + \macro QT_BEGIN_MOC_NAMESPACE + \internal + + This macro is output by moc at the beginning of + moc files. It is equivalent to \c QT_USE_NAMESPACE. + + \sa QT_NAMESPACE +*/ + +/*! + \macro QT_END_MOC_NAMESPACE + \internal + + This macro is output by moc at the beginning of + moc files. It expands to nothing. + + \sa QT_NAMESPACE +*/ + +/*! + \fn bool qFuzzyCompare(double p1, double p2) + \relates <QtGlobal> + \since 4.4 + \threadsafe + + Compares the floating point value \a p1 and \a p2 and + returns \c true if they are considered equal, otherwise \c false. + + Note that comparing values where either \a p1 or \a p2 is 0.0 will not work. + The solution to this is to compare against values greater than or equal to 1.0. + + \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp 46 + + The two numbers are compared in a relative way, where the + exactness is stronger the smaller the numbers are. + */ + +/*! + \fn bool qFuzzyCompare(float p1, float p2) + \relates <QtGlobal> + \since 4.4 + \threadsafe + + Compares the floating point value \a p1 and \a p2 and + returns \c true if they are considered equal, otherwise \c false. + + The two numbers are compared in a relative way, where the + exactness is stronger the smaller the numbers are. + */ + +/*! + \macro QT_REQUIRE_VERSION(int argc, char **argv, const char *version) + \relates <QtGlobal> + + This macro can be used to ensure that the application is run + against a recent enough version of Qt. This is especially useful + if your application depends on a specific bug fix introduced in a + bug-fix release (e.g., 4.0.2). + + The \a argc and \a argv parameters are the \c main() function's + \c argc and \c argv parameters. The \a version parameter is a + string literal that specifies which version of Qt the application + requires (e.g., "4.0.2"). + + Example: + + \snippet doc/src/snippets/code/src_gui_dialogs_qmessagebox.cpp 4 +*/ + +/*! + \macro Q_DECL_EXPORT + \relates <QtGlobal> + + This macro marks a symbol for shared library export (see + \l{sharedlibrary.html}{Creating Shared Libraries}). + + \sa Q_DECL_IMPORT +*/ + +/*! + \macro Q_DECL_IMPORT + \relates <QtGlobal> + + This macro declares a symbol to be an import from a shared library (see + \l{sharedlibrary.html}{Creating Shared Libraries}). + + \sa Q_DECL_EXPORT +*/ + +#if defined(Q_OS_SYMBIAN) + +#include <typeinfo> + +/*! \macro QT_TRAP_THROWING(function) + \relates <QtGlobal> + \ingroup qts60 + + TRAP leaves from Symbian \a function and throws an appropriate + standard C++ exception instead. + This must be used when calling Symbian OS leaving functions + from inside Qt or standard C++ code, so that the code can respond + correctly to the exception. + + \warning This macro is only available on Symbian. + + Example: + + \code + // A Symbian leaving function is being called within a Qt function. + // Any leave must be converted to an exception + CAknTitlePane* titlePane = S60->titlePane(); + if (titlePane) { + TPtrC captionPtr(qt_QString2TPtrC(caption)); + QT_TRAP_THROWING(titlePane->SetTextL(captionPtr)); + } + \endcode + + \sa QT_TRYCATCH_ERROR(), QT_TRYCATCH_LEAVING() +*/ + +/*! \macro QT_TRYCATCH_ERROR(error, function) + \relates <QtGlobal> + \ingroup qts60 + + Catch standard C++ exceptions from a \a function and convert them to a Symbian OS + \a error code, or \c KErrNone if there is no exception. + This must be used inside Qt or standard C++ code when using exception throwing + code (practically anything) and returning an error code to Symbian OS. + + \warning This macro is only available on Symbian. + + Example: + + \code + // An exception might be thrown in this Symbian TInt error returning function. + // It is caught and translated to an error code + TInt QServerApp::Connect(const QString &serverName) + { + TPtrC name; + TInt err; + QT_TRYCATCH_ERROR(err, name.Set(qt_QString2TPtrC(serverName))); + if (err != KErrNone) + return err; + return iServer.Connect(name); + } + \endcode +} + + \sa QT_TRYCATCH_LEAVING(), QT_TRAP_THROWING() +*/ + +/*! \macro QT_TRYCATCH_LEAVING(function) + \relates <QtGlobal> + \ingroup qts60 + + Catch standard C++ exceptions from \a function and convert them to Symbian OS + leaves. This must be used inside Qt or standard C++ code when using exception + throwing code (practically anything) and returning to Symbian OS from a leaving function. + For example inside a Symbian active object's \c RunL function implemented with Qt code. + + \warning This macro is only available on Symbian. + + Example: + + \code + // This active object signals Qt code + // Exceptions from the Qt code must be converted to Symbian OS leaves for the active scheduler + void QWakeUpActiveObject::RunL() + { + iStatus = KRequestPending; + SetActive(); + QT_TRYCATCH_LEAVING(m_dispatcher->wakeUpWasCalled()); + } + \endcode + + \sa QT_TRAP_THROWING(), QT_TRYCATCH_ERROR() +*/ + +#include <stdexcept> + +class QSymbianLeaveException : public std::exception +{ +public: + inline QSymbianLeaveException(int err) : error(err) {} + inline const char* what() const throw() { return "Symbian leave exception"; } + +public: + int error; +}; + +/*! \relates <QtGlobal> + \ingroup qts60 + + Throws an exception if the \a error parameter is a symbian error code. + This is the exception throwing equivalent of Symbian's User::LeaveIfError. + + \warning This function is only available on Symbian. + + \sa qt_symbian_exception2LeaveL(), qt_symbian_exception2Error() +*/ +void qt_symbian_throwIfError(int error) +{ + if (error >= KErrNone) + return; // do nothing - not an exception + switch (error) { + case KErrNoMemory: + throw std::bad_alloc(); + case KErrArgument: + throw std::invalid_argument("from Symbian error"); + case KErrOverflow: + throw std::overflow_error("from Symbian error"); + case KErrUnderflow: + throw std::underflow_error("from Symbian error"); + default: + throw QSymbianLeaveException(error); + } +} + +/*! \relates <QtGlobal> + \ingroup qts60 + + Convert a caught standard C++ exception \a aThrow to a Symbian leave + + \warning This function is only available on Symbian. + + \sa qt_symbian_throwIfError(), qt_symbian_exception2Error() +*/ +void qt_symbian_exception2LeaveL(const std::exception& aThrow) +{ + User::Leave(qt_symbian_exception2Error(aThrow)); +} + +/*! \relates <QtGlobal> + \ingroup qts60 + + Convert a caught standard C++ exception \a aThrow to a Symbian error code + + \warning This function is only available on Symbian. + + \sa qt_symbian_throwIfError(), qt_symbian_exception2LeaveL() +*/ +int qt_symbian_exception2Error(const std::exception& aThrow) +{ + const std::type_info& atype = typeid(aThrow); + int err = KErrGeneral; + + if(atype == typeid (std::bad_alloc)) + err = KErrNoMemory; + else if(atype == typeid(QSymbianLeaveException)) + err = static_cast<const QSymbianLeaveException&>(aThrow).error; + else { + if(atype == typeid(std::invalid_argument)) + err = KErrArgument; + else if(atype == typeid(std::out_of_range)) + // std::out_of_range is of type logic_error which by definition means that it is + // "presumably detectable before the program executes". + // std::out_of_range is used to report an argument is not within the expected range. + // The description of KErrArgument says an argument is out of range. Hence the mapping. + err = KErrArgument; + else if(atype == typeid(std::overflow_error)) + err = KErrOverflow; + else if(atype == typeid(std::underflow_error)) + err = KErrUnderflow; + qWarning("translation from std exception \"%s\" to %d", aThrow.what(), err); + } + + return err; +} +#endif + +QT_END_NAMESPACE |