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Branched from the monolithic repo, Qt master branch, at commit
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1 files changed, 2386 insertions, 0 deletions

diff --git a/src/corelib/io/qdir.cpp b/src/corelib/io/qdir.cpp
new file mode 100644
index 0000000000..166513a6ff
--- /dev/null
+++ b/src/corelib/io/qdir.cpp
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+/****************************************************************************
+**
+** 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 "qdir.h"
+#include "qdir_p.h"
+#include "qabstractfileengine.h"
+#ifndef QT_NO_DEBUG_STREAM
+#include "qdebug.h"
+#endif
+#include "qdiriterator.h"
+#include "qfsfileengine.h"
+#include "qdatetime.h"
+#include "qstring.h"
+#include "qregexp.h"
+#include "qvector.h"
+#include "qalgorithms.h"
+#include "qvarlengtharray.h"
+#include "qfilesystementry_p.h"
+#include "qfilesystemmetadata_p.h"
+#include "qfilesystemengine_p.h"
+#include <qstringbuilder.h>
+
+#ifdef QT_BUILD_CORE_LIB
+#  include "qresource.h"
+#  include "private/qcoreglobaldata_p.h"
+#endif
+
+#include <stdlib.h>
+
+QT_BEGIN_NAMESPACE
+
+static QString driveSpec(const QString &path)
+{
+#if defined(Q_OS_WIN) || defined(Q_OS_SYMBIAN)
+    if (path.size() < 2)
+        return QString();
+    char c = path.at(0).toAscii();
+    if (c < 'a' && c > 'z' && c < 'A' && c > 'Z')
+        return QString();
+    if (path.at(1).toAscii() != ':')
+        return QString();
+    return path.mid(0, 2);
+#else
+    Q_UNUSED(path);
+    return QString();
+#endif
+}
+
+//************* QDirPrivate
+QDirPrivate::QDirPrivate(const QString &path, const QStringList &nameFilters_, QDir::SortFlags sort_, QDir::Filters filters_)
+    : QSharedData()
+    , nameFilters(nameFilters_)
+    , sort(sort_)
+    , filters(filters_)
+#ifdef QT3_SUPPORT
+    , filterSepChar(0)
+    , matchAllDirs(false)
+#endif
+    , fileListsInitialized(false)
+{
+    setPath(path.isEmpty() ? QString::fromLatin1(".") : path);
+
+    bool empty = nameFilters.isEmpty();
+    if (!empty) {
+        empty = true;
+        for (int i = 0; i < nameFilters.size(); ++i) {
+            if (!nameFilters.at(i).isEmpty()) {
+                empty = false;
+                break;
+            }
+        }
+    }
+    if (empty)
+        nameFilters = QStringList(QString::fromLatin1("*"));
+}
+
+QDirPrivate::QDirPrivate(const QDirPrivate &copy)
+    : QSharedData(copy)
+    , nameFilters(copy.nameFilters)
+    , sort(copy.sort)
+    , filters(copy.filters)
+#ifdef QT3_SUPPORT
+    , filterSepChar(copy.filterSepChar)
+    , matchAllDirs(copy.matchAllDirs)
+#endif
+    , fileListsInitialized(false)
+    , dirEntry(copy.dirEntry)
+    , metaData(copy.metaData)
+{
+}
+
+bool QDirPrivate::exists() const
+{
+    if (fileEngine.isNull()) {
+        QFileSystemEngine::fillMetaData(dirEntry, metaData,
+                QFileSystemMetaData::ExistsAttribute | QFileSystemMetaData::DirectoryType); // always stat
+        return metaData.exists() && metaData.isDirectory();
+    }
+    const QAbstractFileEngine::FileFlags info =
+        fileEngine->fileFlags(QAbstractFileEngine::DirectoryType
+                                       | QAbstractFileEngine::ExistsFlag
+                                       | QAbstractFileEngine::Refresh);
+    if (!(info & QAbstractFileEngine::DirectoryType))
+        return false;
+    return info & QAbstractFileEngine::ExistsFlag;
+}
+
+// static
+inline QChar QDirPrivate::getFilterSepChar(const QString &nameFilter)
+{
+    QChar sep(QLatin1Char(';'));
+    int i = nameFilter.indexOf(sep, 0);
+    if (i == -1 && nameFilter.indexOf(QLatin1Char(' '), 0) != -1)
+        sep = QChar(QLatin1Char(' '));
+    return sep;
+}
+
+// static
+inline QStringList QDirPrivate::splitFilters(const QString &nameFilter, QChar sep)
+{
+    if (sep == 0)
+        sep = getFilterSepChar(nameFilter);
+    QStringList ret = nameFilter.split(sep);
+    for (int i = 0; i < ret.count(); ++i)
+        ret[i] = ret[i].trimmed();
+    return ret;
+}
+
+inline void QDirPrivate::setPath(const QString &path)
+{
+    QString p = QDir::fromNativeSeparators(path);
+    if (p.endsWith(QLatin1Char('/'))
+            && p.length() > 1
+#if defined(Q_OS_WIN) || defined(Q_OS_SYMBIAN)
+        && (!(p.length() == 3 && p.at(1).unicode() == ':' && p.at(0).isLetter()))
+#endif
+    ) {
+            p.truncate(p.length() - 1);
+    }
+
+    dirEntry = QFileSystemEntry(p, QFileSystemEntry::FromInternalPath());
+    metaData.clear();
+    initFileEngine();
+    clearFileLists();
+    absoluteDirEntry = QFileSystemEntry();
+}
+
+inline void QDirPrivate::clearFileLists()
+{
+    fileListsInitialized = false;
+    files.clear();
+    fileInfos.clear();
+}
+
+inline void QDirPrivate::resolveAbsoluteEntry() const
+{
+    if (!absoluteDirEntry.isEmpty() || dirEntry.isEmpty())
+        return;
+
+    QString absoluteName;
+    if (fileEngine.isNull()) {
+        if (!dirEntry.isRelative()) {
+            absoluteDirEntry = dirEntry;
+            return;
+        }
+
+        absoluteName = QFileSystemEngine::absoluteName(dirEntry).filePath();
+    } else {
+        absoluteName = fileEngine->fileName(QAbstractFileEngine::AbsoluteName);
+    }
+
+    absoluteDirEntry = QFileSystemEntry(QDir::cleanPath(absoluteName), QFileSystemEntry::FromInternalPath());
+}
+
+/* For sorting */
+struct QDirSortItem
+{
+    mutable QString filename_cache;
+    mutable QString suffix_cache;
+    QFileInfo item;
+};
+
+
+class QDirSortItemComparator
+{
+    int qt_cmp_si_sort_flags;
+public:
+    QDirSortItemComparator(int flags) : qt_cmp_si_sort_flags(flags) {}
+    bool operator()(const QDirSortItem &, const QDirSortItem &);
+};
+
+bool QDirSortItemComparator::operator()(const QDirSortItem &n1, const QDirSortItem &n2)
+{
+    const QDirSortItem* f1 = &n1;
+    const QDirSortItem* f2 = &n2;
+
+    if ((qt_cmp_si_sort_flags & QDir::DirsFirst) && (f1->item.isDir() != f2->item.isDir()))
+        return f1->item.isDir();
+    if ((qt_cmp_si_sort_flags & QDir::DirsLast) && (f1->item.isDir() != f2->item.isDir()))
+        return !f1->item.isDir();
+
+    int r = 0;
+    int sortBy = (qt_cmp_si_sort_flags & QDir::SortByMask)
+                 | (qt_cmp_si_sort_flags & QDir::Type);
+
+    switch (sortBy) {
+      case QDir::Time:
+        r = f1->item.lastModified().secsTo(f2->item.lastModified());
+        break;
+      case QDir::Size:
+          r = int(qBound<qint64>(-1, f2->item.size() - f1->item.size(), 1));
+        break;
+      case QDir::Type:
+      {
+        bool ic = qt_cmp_si_sort_flags & QDir::IgnoreCase;
+
+        if (f1->suffix_cache.isNull())
+            f1->suffix_cache = ic ? f1->item.suffix().toLower()
+                               : f1->item.suffix();
+        if (f2->suffix_cache.isNull())
+            f2->suffix_cache = ic ? f2->item.suffix().toLower()
+                               : f2->item.suffix();
+
+        r = qt_cmp_si_sort_flags & QDir::LocaleAware
+            ? f1->suffix_cache.localeAwareCompare(f2->suffix_cache)
+            : f1->suffix_cache.compare(f2->suffix_cache);
+      }
+        break;
+      default:
+        ;
+    }
+
+    if (r == 0 && sortBy != QDir::Unsorted) {
+        // Still not sorted - sort by name
+        bool ic = qt_cmp_si_sort_flags & QDir::IgnoreCase;
+
+        if (f1->filename_cache.isNull())
+            f1->filename_cache = ic ? f1->item.fileName().toLower()
+                                    : f1->item.fileName();
+        if (f2->filename_cache.isNull())
+            f2->filename_cache = ic ? f2->item.fileName().toLower()
+                                    : f2->item.fileName();
+
+        r = qt_cmp_si_sort_flags & QDir::LocaleAware
+            ? f1->filename_cache.localeAwareCompare(f2->filename_cache)
+            : f1->filename_cache.compare(f2->filename_cache);
+    }
+    if (r == 0) // Enforce an order - the order the items appear in the array
+        r = (&n1) - (&n2);
+    if (qt_cmp_si_sort_flags & QDir::Reversed)
+        return r > 0;
+    return r < 0;
+}
+
+inline void QDirPrivate::sortFileList(QDir::SortFlags sort, QFileInfoList &l,
+                                      QStringList *names, QFileInfoList *infos)
+{
+    // names and infos are always empty lists or 0 here
+    int n = l.size();
+    if (n > 0) {
+        if (n == 1 || (sort & QDir::SortByMask) == QDir::Unsorted) {
+            if (infos)
+                *infos = l;
+            if (names) {
+                for (int i = 0; i < n; ++i)
+                    names->append(l.at(i).fileName());
+            }
+        } else {
+            QScopedArrayPointer<QDirSortItem> si(new QDirSortItem[n]);
+            for (int i = 0; i < n; ++i)
+                si[i].item = l.at(i);
+            qSort(si.data(), si.data() + n, QDirSortItemComparator(sort));
+            // put them back in the list(s)
+            if (infos) {
+                for (int i = 0; i < n; ++i)
+                    infos->append(si[i].item);
+            }
+            if (names) {
+                for (int i = 0; i < n; ++i)
+                    names->append(si[i].item.fileName());
+            }
+        }
+    }
+}
+inline void QDirPrivate::initFileLists(const QDir &dir) const
+{
+    if (!fileListsInitialized) {
+        QFileInfoList l;
+        QDirIterator it(dir);
+        while (it.hasNext()) {
+            it.next();
+            l.append(it.fileInfo());
+        }
+        sortFileList(sort, l, &files, &fileInfos);
+        fileListsInitialized = true;
+    }
+}
+
+inline void QDirPrivate::initFileEngine()
+{
+    fileEngine.reset(QFileSystemEngine::resolveEntryAndCreateLegacyEngine(dirEntry, metaData));
+}
+
+/*!
+    \class QDir
+    \brief The QDir class provides access to directory structures and their contents.
+
+    \ingroup io
+    \ingroup shared
+    \reentrant
+
+
+    A QDir is used to manipulate path names, access information
+    regarding paths and files, and manipulate the underlying file
+    system. It can also be used to access Qt's \l{resource system}.
+
+    Qt uses "/" as a universal directory separator in the same way
+    that "/" is used as a path separator in URLs. If you always use
+    "/" as a directory separator, Qt will translate your paths to
+    conform to the underlying operating system.
+
+    A QDir can point to a file using either a relative or an absolute
+    path. Absolute paths begin with the directory separator
+    (optionally preceded by a drive specification under Windows).
+    Relative file names begin with a directory name or a file name and
+    specify a path relative to the current directory.
+
+    Examples of absolute paths:
+
+    \snippet doc/src/snippets/code/src_corelib_io_qdir.cpp 0
+
+    On Windows, the second example above will be translated to
+    \c{C:\Documents and Settings} when used to access files.
+
+    Examples of relative paths:
+
+    \snippet doc/src/snippets/code/src_corelib_io_qdir.cpp 1
+
+    You can use the isRelative() or isAbsolute() functions to check if
+    a QDir is using a relative or an absolute file path. Call
+    makeAbsolute() to convert a relative QDir to an absolute one.
+
+    \section1 Navigation and Directory Operations
+
+    A directory's path can be obtained with the path() function, and
+    a new path set with the setPath() function. The absolute path to
+    a directory is found by calling absolutePath().
+
+    The name of a directory is found using the dirName() function. This
+    typically returns the last element in the absolute path that specifies
+    the location of the directory. However, it can also return "." if
+    the QDir represents the current directory.
+
+    \snippet doc/src/snippets/code/src_corelib_io_qdir.cpp 2
+
+    The path for a directory can also be changed with the cd() and cdUp()
+    functions, both of which operate like familiar shell commands.
+    When cd() is called with the name of an existing directory, the QDir
+    object changes directory so that it represents that directory instead.
+    The cdUp() function changes the directory of the QDir object so that
+    it refers to its parent directory; i.e. cd("..") is equivalent to
+    cdUp().
+
+    Directories can be created with mkdir(), renamed with rename(), and
+    removed with rmdir().
+
+    You can test for the presence of a directory with a given name by
+    using exists(), and the properties of a directory can be tested with
+    isReadable(), isAbsolute(), isRelative(), and isRoot().
+
+    The refresh() function re-reads the directory's data from disk.
+
+    \section1 Files and Directory Contents
+
+    Directories contain a number of entries, representing files,
+    directories, and symbolic links. The number of entries in a
+    directory is returned by count().
+    A string list of the names of all the entries in a directory can be
+    obtained with entryList(). If you need information about each
+    entry, use entryInfoList() to obtain a list of QFileInfo objects.
+
+    Paths to files and directories within a directory can be
+    constructed using filePath() and absoluteFilePath().
+    The filePath() function returns a path to the specified file
+    or directory relative to the path of the QDir object;
+    absoluteFilePath() returns an absolute path to the specified
+    file or directory. Neither of these functions checks for the
+    existence of files or directory; they only construct paths.
+
+    \snippet doc/src/snippets/code/src_corelib_io_qdir.cpp 3
+
+    Files can be removed by using the remove() function. Directories
+    cannot be removed in the same way as files; use rmdir() to remove
+    them instead.
+
+    It is possible to reduce the number of entries returned by
+    entryList() and entryInfoList() by applying filters to a QDir object.
+    You can apply a name filter to specify a pattern with wildcards that
+    file names need to match, an attribute filter that selects properties
+    of entries and can distinguish between files and directories, and a
+    sort order.
+
+    Name filters are lists of strings that are passed to setNameFilters().
+    Attribute filters consist of a bitwise OR combination of Filters, and
+    these are specified when calling setFilter().
+    The sort order is specified using setSorting() with a bitwise OR
+    combination of SortFlags.
+
+    You can test to see if a filename matches a filter using the match()
+    function.
+
+    Filter and sort order flags may also be specified when calling
+    entryList() and entryInfoList() in order to override previously defined
+    behavior.
+
+    \section1 The Current Directory and Other Special Paths
+
+    Access to some common directories is provided with a number of static
+    functions that return QDir objects. There are also corresponding functions
+    for these that return strings:
+
+    \table
+    \header \o QDir      \o QString         \o Return Value
+    \row    \o current() \o currentPath()   \o The application's working directory
+    \row    \o home()    \o homePath()      \o The user's home directory
+    \row    \o root()    \o rootPath()      \o The root directory
+    \row    \o temp()    \o tempPath()      \o The system's temporary directory
+    \endtable
+
+    The setCurrent() static function can also be used to set the application's
+    working directory.
+
+    If you want to find the directory containing the application's executable,
+    see \l{QCoreApplication::applicationDirPath()}.
+
+    The drives() static function provides a list of root directories for each
+    device that contains a filing system. On Unix systems this returns a list
+    containing a single root directory "/"; on Windows the list will usually
+    contain \c{C:/}, and possibly other drive letters such as \c{D:/}, depending
+    on the configuration of the user's system.
+
+    \section1 Path Manipulation and Strings
+
+    Paths containing "." elements that reference the current directory at that
+    point in the path, ".." elements that reference the parent directory, and
+    symbolic links can be reduced to a canonical form using the canonicalPath()
+    function.
+
+    Paths can also be simplified by using cleanPath() to remove redundant "/"
+    and ".." elements.
+
+    It is sometimes necessary to be able to show a path in the native
+    representation for the user's platform. The static toNativeSeparators()
+    function returns a copy of the specified path in which each directory
+    separator is replaced by the appropriate separator for the underlying
+    operating system.
+
+    \section1 Examples
+
+    Check if a directory exists:
+
+    \snippet doc/src/snippets/code/src_corelib_io_qdir.cpp 4
+
+    (We could also use the static convenience function
+    QFile::exists().)
+
+    Traversing directories and reading a file:
+
+    \snippet doc/src/snippets/code/src_corelib_io_qdir.cpp 5
+
+    A program that lists all the files in the current directory
+    (excluding symbolic links), sorted by size, smallest first:
+
+    \snippet doc/src/snippets/qdir-listfiles/main.cpp 0
+
+    \sa QFileInfo, QFile, QFileDialog, QApplication::applicationDirPath(), {Find Files Example}
+*/
+
+/*!
+    Constructs a QDir pointing to the given directory \a path. If path
+    is empty the program's working directory, ("."), is used.
+
+    \sa currentPath()
+*/
+QDir::QDir(const QString &path) : d_ptr(new QDirPrivate(path))
+{
+}
+
+/*!
+    Constructs a QDir with path \a path, that filters its entries by
+    name using \a nameFilter and by attributes using \a filters. It
+    also sorts the names using \a sort.
+
+    The default \a nameFilter is an empty string, which excludes
+    nothing; the default \a filters is \l AllEntries, which also means
+    exclude nothing. The default \a sort is \l Name | \l IgnoreCase,
+    i.e. sort by name case-insensitively.
+
+    If \a path is an empty string, QDir uses "." (the current
+    directory). If \a nameFilter is an empty string, QDir uses the
+    name filter "*" (all files).
+
+    Note that \a path need not exist.
+
+    \sa exists(), setPath(), setNameFilter(), setFilter(), setSorting()
+*/
+QDir::QDir(const QString &path, const QString &nameFilter,
+           SortFlags sort, Filters filters)
+    : d_ptr(new QDirPrivate(path, QDir::nameFiltersFromString(nameFilter), sort, filters))
+{
+}
+
+/*!
+    Constructs a QDir object that is a copy of the QDir object for
+    directory \a dir.
+
+    \sa operator=()
+*/
+QDir::QDir(const QDir &dir)
+    : d_ptr(dir.d_ptr)
+{
+}
+
+/*!
+    Destroys the QDir object frees up its resources. This has no
+    effect on the underlying directory in the file system.
+*/
+QDir::~QDir()
+{
+}
+
+/*!
+    Sets the path of the directory to \a path. The path is cleaned of
+    redundant ".", ".." and of multiple separators. No check is made
+    to see whether a directory with this path actually exists; but you
+    can check for yourself using exists().
+
+    The path can be either absolute or relative. Absolute paths begin
+    with the directory separator "/" (optionally preceded by a drive
+    specification under Windows). Relative file names begin with a
+    directory name or a file name and specify a path relative to the
+    current directory. An example of an absolute path is the string
+    "/tmp/quartz", a relative path might look like "src/fatlib".
+
+    \sa path(), absolutePath(), exists(), cleanPath(), dirName(),
+      absoluteFilePath(), isRelative(), makeAbsolute()
+*/
+void QDir::setPath(const QString &path)
+{
+    d_ptr->setPath(path);
+}
+
+/*!
+    Returns the path. This may contain symbolic links, but never
+    contains redundant ".", ".." or multiple separators.
+
+    The returned path can be either absolute or relative (see
+    setPath()).
+
+    \sa setPath(), absolutePath(), exists(), cleanPath(), dirName(),
+    absoluteFilePath(), toNativeSeparators(), makeAbsolute()
+*/
+QString QDir::path() const
+{
+    const QDirPrivate* d = d_ptr.constData();
+    return d->dirEntry.filePath();
+}
+
+/*!
+    Returns the absolute path (a path that starts with "/" or with a
+    drive specification), which may contain symbolic links, but never
+    contains redundant ".", ".." or multiple separators.
+
+    \sa setPath(), canonicalPath(), exists(), cleanPath(),
+    dirName(), absoluteFilePath()
+*/
+QString QDir::absolutePath() const
+{
+    const QDirPrivate* d = d_ptr.constData();
+    d->resolveAbsoluteEntry();
+    return d->absoluteDirEntry.filePath();
+}
+
+/*!
+    Returns the canonical path, i.e. a path without symbolic links or
+    redundant "." or ".." elements.
+
+    On systems that do not have symbolic links this function will
+    always return the same string that absolutePath() returns. If the
+    canonical path does not exist (normally due to dangling symbolic
+    links) canonicalPath() returns an empty string.
+
+    Example:
+
+    \snippet doc/src/snippets/code/src_corelib_io_qdir.cpp 6
+
+    \sa path(), absolutePath(), exists(), cleanPath(), dirName(),
+        absoluteFilePath()
+*/
+QString QDir::canonicalPath() const
+{
+    const QDirPrivate* d = d_ptr.constData();
+    if (d->fileEngine.isNull()) {
+        QFileSystemEntry answer = QFileSystemEngine::canonicalName(d->dirEntry, d->metaData);
+        return answer.filePath();
+    }
+    return d->fileEngine->fileName(QAbstractFileEngine::CanonicalName);
+}
+
+/*!
+    Returns the name of the directory; this is \e not the same as the
+    path, e.g. a directory with the name "mail", might have the path
+    "/var/spool/mail". If the directory has no name (e.g. it is the
+    root directory) an empty string is returned.
+
+    No check is made to ensure that a directory with this name
+    actually exists; but see exists().
+
+    \sa path(), filePath(), absolutePath(), absoluteFilePath()
+*/
+QString QDir::dirName() const
+{
+    const QDirPrivate* d = d_ptr.constData();
+    return d->dirEntry.fileName();
+}
+
+/*!
+    Returns the path name of a file in the directory. Does \e not
+    check if the file actually exists in the directory; but see
+    exists(). If the QDir is relative the returned path name will also
+    be relative. Redundant multiple separators or "." and ".."
+    directories in \a fileName are not removed (see cleanPath()).
+
+    \sa dirName() absoluteFilePath(), isRelative(), canonicalPath()
+*/
+QString QDir::filePath(const QString &fileName) const
+{
+    const QDirPrivate* d = d_ptr.constData();
+    if (isAbsolutePath(fileName))
+        return QString(fileName);
+
+    QString ret = d->dirEntry.filePath();
+    if (!fileName.isEmpty()) {
+        if (!ret.isEmpty() && ret[(int)ret.length()-1] != QLatin1Char('/') && fileName[0] != QLatin1Char('/'))
+            ret += QLatin1Char('/');
+        ret += fileName;
+    }
+    return ret;
+}
+
+/*!
+    Returns the absolute path name of a file in the directory. Does \e
+    not check if the file actually exists in the directory; but see
+    exists(). Redundant multiple separators or "." and ".."
+    directories in \a fileName are not removed (see cleanPath()).
+
+    \sa relativeFilePath() filePath() canonicalPath()
+*/
+QString QDir::absoluteFilePath(const QString &fileName) const
+{
+    const QDirPrivate* d = d_ptr.constData();
+    if (isAbsolutePath(fileName))
+        return fileName;
+
+    d->resolveAbsoluteEntry();
+    if (fileName.isEmpty())
+        return d->absoluteDirEntry.filePath();
+    if (!d->absoluteDirEntry.isRoot())
+        return d->absoluteDirEntry.filePath() % QLatin1Char('/') % fileName;
+    return d->absoluteDirEntry.filePath() % fileName;
+}
+
+/*!
+    Returns the path to \a fileName relative to the directory.
+
+    \snippet doc/src/snippets/code/src_corelib_io_qdir.cpp 7
+
+    \sa absoluteFilePath() filePath() canonicalPath()
+*/
+QString QDir::relativeFilePath(const QString &fileName) const
+{
+    QString dir = cleanPath(absolutePath());
+    QString file = cleanPath(fileName);
+
+    if (isRelativePath(file) || isRelativePath(dir))
+        return file;
+
+    QString dirDrive = driveSpec(dir);
+    QString fileDrive = driveSpec(file);
+
+    bool fileDriveMissing = false;
+    if (fileDrive.isEmpty()) {
+        fileDrive = dirDrive;
+        fileDriveMissing = true;
+    }
+
+#ifdef Q_OS_WIN
+    if (fileDrive.toLower() != dirDrive.toLower()
+        || (file.startsWith(QLatin1String("//"))
+        && !dir.startsWith(QLatin1String("//"))))
+#elif defined(Q_OS_SYMBIAN)
+    if (fileDrive.toLower() != dirDrive.toLower())
+#else
+    if (fileDrive != dirDrive)
+#endif
+        return file;
+
+    dir.remove(0, dirDrive.size());
+    if (!fileDriveMissing)
+        file.remove(0, fileDrive.size());
+
+    QString result;
+    QStringList dirElts = dir.split(QLatin1Char('/'), QString::SkipEmptyParts);
+    QStringList fileElts = file.split(QLatin1Char('/'), QString::SkipEmptyParts);
+
+    int i = 0;
+    while (i < dirElts.size() && i < fileElts.size() &&
+#if defined(Q_OS_WIN) || defined(Q_OS_SYMBIAN)
+           dirElts.at(i).toLower() == fileElts.at(i).toLower())
+#else
+           dirElts.at(i) == fileElts.at(i))
+#endif
+        ++i;
+
+    for (int j = 0; j < dirElts.size() - i; ++j)
+        result += QLatin1String("../");
+
+    for (int j = i; j < fileElts.size(); ++j) {
+        result += fileElts.at(j);
+        if (j < fileElts.size() - 1)
+            result += QLatin1Char('/');
+    }
+
+    return result;
+}
+
+#ifndef QT_NO_DEPRECATED
+/*!
+    \obsolete
+
+    Use QDir::toNativeSeparators() instead.
+*/
+QString QDir::convertSeparators(const QString &pathName)
+{
+    return toNativeSeparators(pathName);
+}
+#endif
+
+/*!
+    \since 4.2
+
+    Returns \a pathName with the '/' separators converted to
+    separators that are appropriate for the underlying operating
+    system.
+
+    On Windows, toNativeSeparators("c:/winnt/system32") returns
+    "c:\\winnt\\system32".
+
+    The returned string may be the same as the argument on some
+    operating systems, for example on Unix.
+
+    \sa fromNativeSeparators(), separator()
+*/
+QString QDir::toNativeSeparators(const QString &pathName)
+{
+    QString n(pathName);
+#if defined(Q_FS_FAT) || defined(Q_OS_OS2EMX) || defined(Q_OS_SYMBIAN)
+    for (int i = 0; i < (int)n.length(); ++i) {
+        if (n[i] == QLatin1Char('/'))
+            n[i] = QLatin1Char('\\');
+    }
+#endif
+    return n;
+}
+
+/*!
+    \since 4.2
+
+    Returns \a pathName using '/' as file separator. On Windows,
+    for instance, fromNativeSeparators("\c{c:\\winnt\\system32}") returns
+    "c:/winnt/system32".
+
+    The returned string may be the same as the argument on some
+    operating systems, for example on Unix.
+
+    \sa toNativeSeparators(), separator()
+*/
+QString QDir::fromNativeSeparators(const QString &pathName)
+{
+    QString n(pathName);
+#if defined(Q_FS_FAT) || defined(Q_OS_OS2EMX) || defined(Q_OS_SYMBIAN)
+    for (int i = 0; i < (int)n.length(); ++i) {
+        if (n[i] == QLatin1Char('\\'))
+            n[i] = QLatin1Char('/');
+    }
+#endif
+    return n;
+}
+
+/*!
+    Changes the QDir's directory to \a dirName.
+
+    Returns true if the new directory exists and is readable;
+    otherwise returns false. Note that the logical cd() operation is
+    not performed if the new directory does not exist.
+
+    Calling cd("..") is equivalent to calling cdUp().
+
+    \sa cdUp(), isReadable(), exists(), path()
+*/
+bool QDir::cd(const QString &dirName)
+{
+    // Don't detach just yet.
+    const QDirPrivate * const d = d_ptr.constData();
+
+    if (dirName.isEmpty() || dirName == QLatin1String("."))
+        return true;
+    QString newPath;
+    if (isAbsolutePath(dirName)) {
+        newPath = cleanPath(dirName);
+    } else {
+        if (isRoot()) {
+            if (dirName == QLatin1String(".."))
+                return false;
+            newPath = d->dirEntry.filePath();
+        } else {
+            newPath = d->dirEntry.filePath() % QLatin1Char('/');
+        }
+
+        newPath += dirName;
+        if (dirName.indexOf(QLatin1Char('/')) >= 0
+            || dirName == QLatin1String("..")
+            || d->dirEntry.filePath() == QLatin1String(".")) {
+            newPath = cleanPath(newPath);
+            /*
+              If newPath starts with .., we convert it to absolute to
+              avoid infinite looping on
+
+                  QDir dir(".");
+                  while (dir.cdUp())
+                      ;
+            */
+            if (newPath.startsWith(QLatin1String(".."))) {
+                newPath = QFileInfo(newPath).absoluteFilePath();
+            }
+        }
+    }
+
+    QScopedPointer<QDirPrivate> dir(new QDirPrivate(*d_ptr.constData()));
+    dir->setPath(newPath);
+    if (!dir->exists())
+        return false;
+
+    d_ptr = dir.take();
+    return true;
+}
+
+/*!
+    Changes directory by moving one directory up from the QDir's
+    current directory.
+
+    Returns true if the new directory exists and is readable;
+    otherwise returns false. Note that the logical cdUp() operation is
+    not performed if the new directory does not exist.
+
+    \sa cd(), isReadable(), exists(), path()
+*/
+bool QDir::cdUp()
+{
+    return cd(QString::fromLatin1(".."));
+}
+
+/*!
+    Returns the string list set by setNameFilters()
+*/
+QStringList QDir::nameFilters() const
+{
+    const QDirPrivate* d = d_ptr.constData();
+    return d->nameFilters;
+}
+
+/*!
+    Sets the name filters used by entryList() and entryInfoList() to the
+    list of filters specified by \a nameFilters.
+
+    Each name filter is a wildcard (globbing) filter that understands
+    \c{*} and \c{?} wildcards. (See \l{QRegExp wildcard matching}.)
+
+    For example, the following code sets three name filters on a QDir
+    to ensure that only files with extensions typically used for C++
+    source files are listed:
+
+    \snippet doc/src/snippets/qdir-namefilters/main.cpp 0
+
+    \sa nameFilters(), setFilter()
+*/
+void QDir::setNameFilters(const QStringList &nameFilters)
+{
+    QDirPrivate* d = d_ptr.data();
+    d->initFileEngine();
+    d->clearFileLists();
+
+    d->nameFilters = nameFilters;
+}
+
+/*!
+    \obsolete
+
+    Use QDir::addSearchPath() with a prefix instead.
+
+    Adds \a path to the search paths searched in to find resources
+    that are not specified with an absolute path. The default search
+    path is to search only in the root (\c{:/}).
+
+    \sa {The Qt Resource System}
+*/
+void QDir::addResourceSearchPath(const QString &path)
+{
+#ifdef QT_BUILD_CORE_LIB
+    QResource::addSearchPath(path);
+#else
+    Q_UNUSED(path)
+#endif
+}
+
+#ifdef QT_BUILD_CORE_LIB
+/*!
+    \since 4.3
+
+    Sets or replaces Qt's search paths for file names with the prefix \a prefix
+    to \a searchPaths.
+
+    To specify a prefix for a file name, prepend the prefix followed by a single
+    colon (e.g., "images:undo.png", "xmldocs:books.xml"). \a prefix can only
+    contain letters or numbers (e.g., it cannot contain a colon, nor a slash).
+
+    Qt uses this search path to locate files with a known prefix. The search
+    path entries are tested in order, starting with the first entry.
+
+    \snippet doc/src/snippets/code/src_corelib_io_qdir.cpp 8
+
+    File name prefix must be at least 2 characters long to avoid conflicts with
+    Windows drive letters.
+
+    Search paths may contain paths to \l{The Qt Resource System}.
+*/
+void QDir::setSearchPaths(const QString &prefix, const QStringList &searchPaths)
+{
+    if (prefix.length() < 2) {
+        qWarning("QDir::setSearchPaths: Prefix must be longer than 1 character");
+        return;
+    }
+
+    for (int i = 0; i < prefix.count(); ++i) {
+        if (!prefix.at(i).isLetterOrNumber()) {
+            qWarning("QDir::setSearchPaths: Prefix can only contain letters or numbers");
+            return;
+        }
+    }
+
+    QWriteLocker lock(&QCoreGlobalData::instance()->dirSearchPathsLock);
+    QMap<QString, QStringList> &paths = QCoreGlobalData::instance()->dirSearchPaths;
+    if (searchPaths.isEmpty()) {
+        paths.remove(prefix);
+    } else {
+        paths.insert(prefix, searchPaths);
+    }
+}
+
+/*!
+    \since 4.3
+
+    Adds \a path to the search path for \a prefix.
+
+    \sa setSearchPaths()
+*/
+void QDir::addSearchPath(const QString &prefix, const QString &path)
+{
+    if (path.isEmpty())
+        return;
+
+    QWriteLocker lock(&QCoreGlobalData::instance()->dirSearchPathsLock);
+    QCoreGlobalData::instance()->dirSearchPaths[prefix] += path;
+}
+
+/*!
+    \since 4.3
+
+    Returns the search paths for \a prefix.
+
+    \sa setSearchPaths(), addSearchPath()
+*/
+QStringList QDir::searchPaths(const QString &prefix)
+{
+    QReadLocker lock(&QCoreGlobalData::instance()->dirSearchPathsLock);
+    return QCoreGlobalData::instance()->dirSearchPaths.value(prefix);
+}
+
+#endif // QT_BUILD_CORE_LIB
+
+/*!
+    Returns the value set by setFilter()
+*/
+QDir::Filters QDir::filter() const
+{
+    const QDirPrivate* d = d_ptr.constData();
+    return d->filters;
+}
+
+/*!
+    \enum QDir::Filter
+
+    This enum describes the filtering options available to QDir; e.g.
+    for entryList() and entryInfoList(). The filter value is specified
+    by combining values from the following list using the bitwise OR
+    operator:
+
+    \value Dirs    List directories that match the filters.
+    \value AllDirs  List all directories; i.e. don't apply the filters
+                    to directory names.
+    \value Files   List files.
+    \value Drives  List disk drives (ignored under Unix).
+    \value NoSymLinks  Do not list symbolic links (ignored by operating
+                       systems that don't support symbolic links).
+    \value NoDotAndDotDot Do not list the special entries "." and "..".
+    \value NoDot       Do not list the special entry ".".
+    \value NoDotDot    Do not list the special entry "..".
+    \value AllEntries  List directories, files, drives and symlinks (this does not list
+                broken symlinks unless you specify System).
+    \value Readable    List files for which the application has read
+                       access. The Readable value needs to be combined
+                       with Dirs or Files.
+    \value Writable    List files for which the application has write
+                       access. The Writable value needs to be combined
+                       with Dirs or Files.
+    \value Executable  List files for which the application has
+                       execute access. The Executable value needs to be
+                       combined with Dirs or Files.
+    \value Modified  Only list files that have been modified (ignored
+                     on Unix).
+    \value Hidden  List hidden files (on Unix, files starting with a ".").
+    \value System  List system files (on Unix, FIFOs, sockets and
+                   device files are included; on Windows, \c {.lnk}
+                   files are included)
+    \value CaseSensitive  The filter should be case sensitive.
+
+    \omitvalue DefaultFilter
+    \omitvalue TypeMask
+    \omitvalue All
+    \omitvalue RWEMask
+    \omitvalue AccessMask
+    \omitvalue PermissionMask
+    \omitvalue NoFilter
+
+    Functions that use Filter enum values to filter lists of files
+    and directories will include symbolic links to files and directories
+    unless you set the NoSymLinks value.
+
+    A default constructed QDir will not filter out files based on
+    their permissions, so entryList() and entryInfoList() will return
+    all files that are readable, writable, executable, or any
+    combination of the three.  This makes the default easy to write,
+    and at the same time useful.
+
+    For example, setting the \c Readable, \c Writable, and \c Files
+    flags allows all files to be listed for which the application has read
+    access, write access or both. If the \c Dirs and \c Drives flags are
+    also included in this combination then all drives, directories, all
+    files that the application can read, write, or execute, and symlinks
+    to such files/directories can be listed.
+
+    To retrieve the permissons for a directory, use the
+    entryInfoList() function to get the associated QFileInfo objects
+    and then use the QFileInfo::permissons() to obtain the permissions
+    and ownership for each file.
+*/
+
+/*!
+    Sets the filter used by entryList() and entryInfoList() to \a
+    filters. The filter is used to specify the kind of files that
+    should be returned by entryList() and entryInfoList(). See
+    \l{QDir::Filter}.
+
+    \sa filter(), setNameFilters()
+*/
+void QDir::setFilter(Filters filters)
+{
+    QDirPrivate* d = d_ptr.data();
+    d->initFileEngine();
+    d->clearFileLists();
+
+    d->filters = filters;
+}
+
+/*!
+    Returns the value set by setSorting()
+
+    \sa setSorting() SortFlag
+*/
+QDir::SortFlags QDir::sorting() const
+{
+    const QDirPrivate* d = d_ptr.constData();
+    return d->sort;
+}
+
+/*!
+    \enum QDir::SortFlag
+
+    This enum describes the sort options available to QDir, e.g. for
+    entryList() and entryInfoList(). The sort value is specified by
+    OR-ing together values from the following list:
+
+    \value Name  Sort by name.
+    \value Time  Sort by time (modification time).
+    \value Size  Sort by file size.
+    \value Type  Sort by file type (extension).
+    \value Unsorted  Do not sort.
+    \value NoSort Not sorted by default.
+
+    \value DirsFirst  Put the directories first, then the files.
+    \value DirsLast Put the files first, then the directories.
+    \value Reversed  Reverse the sort order.
+    \value IgnoreCase  Sort case-insensitively.
+    \value LocaleAware Sort items appropriately using the current locale settings.
+
+    \omitvalue SortByMask
+    \omitvalue DefaultSort
+
+    You can only specify one of the first four.
+
+    If you specify both DirsFirst and Reversed, directories are
+    still put first, but in reverse order; the files will be listed
+    after the directories, again in reverse order.
+*/
+
+/*!
+    Sets the sort order used by entryList() and entryInfoList().
+
+    The \a sort is specified by OR-ing values from the enum
+    \l{QDir::SortFlag}.
+
+    \sa sorting() SortFlag
+*/
+void QDir::setSorting(SortFlags sort)
+{
+    QDirPrivate* d = d_ptr.data();
+    d->initFileEngine();
+    d->clearFileLists();
+
+    d->sort = sort;
+}
+
+/*!
+    Returns the total number of directories and files in the directory.
+
+    Equivalent to entryList().count().
+
+    \sa operator[](), entryList()
+*/
+uint QDir::count() const
+{
+    const QDirPrivate* d = d_ptr.constData();
+    d->initFileLists(*this);
+    return d->files.count();
+}
+
+/*!
+    Returns the file name at position \a pos in the list of file
+    names. Equivalent to entryList().at(index).
+    \a pos must be a valid index position in the list (i.e., 0 <= pos < count()).
+
+    \sa count(), entryList()
+*/
+QString QDir::operator[](int pos) const
+{
+    const QDirPrivate* d = d_ptr.constData();
+    d->initFileLists(*this);
+    return d->files[pos];
+}
+
+/*!
+    \overload
+
+    Returns a list of the names of all the files and directories in
+    the directory, ordered according to the name and attribute filters
+    previously set with setNameFilters() and setFilter(), and sorted according
+    to the flags set with setSorting().
+
+    The attribute filter and sorting specifications can be overridden using the
+    \a filters and \a sort arguments.
+
+    Returns an empty list if the directory is unreadable, does not
+    exist, or if nothing matches the specification.
+
+    \note To list symlinks that point to non existing files, \l System must be
+     passed to the filter.
+
+    \sa entryInfoList(), setNameFilters(), setSorting(), setFilter()
+*/
+QStringList QDir::entryList(Filters filters, SortFlags sort) const
+{
+    const QDirPrivate* d = d_ptr.constData();
+    return entryList(d->nameFilters, filters, sort);
+}
+
+
+/*!
+    \overload
+
+    Returns a list of QFileInfo objects for all the files and directories in
+    the directory, ordered according to the name and attribute filters
+    previously set with setNameFilters() and setFilter(), and sorted according
+    to the flags set with setSorting().
+
+    The attribute filter and sorting specifications can be overridden using the
+    \a filters and \a sort arguments.
+
+    Returns an empty list if the directory is unreadable, does not
+    exist, or if nothing matches the specification.
+
+    \sa entryList(), setNameFilters(), setSorting(), setFilter(), isReadable(), exists()
+*/
+QFileInfoList QDir::entryInfoList(Filters filters, SortFlags sort) const
+{
+    const QDirPrivate* d = d_ptr.constData();
+    return entryInfoList(d->nameFilters, filters, sort);
+}
+
+/*!
+    Returns a list of the names of all the files and
+    directories in the directory, ordered according to the name
+    and attribute filters previously set with setNameFilters()
+    and setFilter(), and sorted according to the flags set with
+    setSorting().
+
+    The name filter, file attribute filter, and sorting specification
+    can be overridden using the \a nameFilters, \a filters, and \a sort
+    arguments.
+
+    Returns an empty list if the directory is unreadable, does not
+    exist, or if nothing matches the specification.
+
+    \sa entryInfoList(), setNameFilters(), setSorting(), setFilter()
+*/
+QStringList QDir::entryList(const QStringList &nameFilters, Filters filters,
+                            SortFlags sort) const
+{
+    const QDirPrivate* d = d_ptr.constData();
+
+    if (filters == NoFilter)
+        filters = d->filters;
+#ifdef QT3_SUPPORT
+    if (d->matchAllDirs)
+        filters |= AllDirs;
+#endif
+    if (sort == NoSort)
+        sort = d->sort;
+
+    if (filters == d->filters && sort == d->sort && nameFilters == d->nameFilters) {
+        d->initFileLists(*this);
+        return d->files;
+    }
+
+    QFileInfoList l;
+    QDirIterator it(d->dirEntry.filePath(), nameFilters, filters);
+    while (it.hasNext()) {
+        it.next();
+        l.append(it.fileInfo());
+    }
+    QStringList ret;
+    d->sortFileList(sort, l, &ret, 0);
+    return ret;
+}
+
+/*!
+    Returns a list of QFileInfo objects for all the files and
+    directories in the directory, ordered according to the name
+    and attribute filters previously set with setNameFilters()
+    and setFilter(), and sorted according to the flags set with
+    setSorting().
+
+    The name filter, file attribute filter, and sorting specification
+    can be overridden using the \a nameFilters, \a filters, and \a sort
+    arguments.
+
+    Returns an empty list if the directory is unreadable, does not
+    exist, or if nothing matches the specification.
+
+    \sa entryList(), setNameFilters(), setSorting(), setFilter(), isReadable(), exists()
+*/
+QFileInfoList QDir::entryInfoList(const QStringList &nameFilters, Filters filters,
+                                  SortFlags sort) const
+{
+    const QDirPrivate* d = d_ptr.constData();
+
+    if (filters == NoFilter)
+        filters = d->filters;
+#ifdef QT3_SUPPORT
+    if (d->matchAllDirs)
+        filters |= AllDirs;
+#endif
+    if (sort == NoSort)
+        sort = d->sort;
+
+    if (filters == d->filters && sort == d->sort && nameFilters == d->nameFilters) {
+        d->initFileLists(*this);
+        return d->fileInfos;
+    }
+
+    QFileInfoList l;
+    QDirIterator it(d->dirEntry.filePath(), nameFilters, filters);
+    while (it.hasNext()) {
+        it.next();
+        l.append(it.fileInfo());
+    }
+    QFileInfoList ret;
+    d->sortFileList(sort, l, 0, &ret);
+    return ret;
+}
+
+/*!
+    Creates a sub-directory called \a dirName.
+
+    Returns true on success; otherwise returns false.
+
+    If the directory already exists when this function is called, it will return false.
+
+    \sa rmdir()
+*/
+// ### Qt5: behaviour when directory already exists should be made consistent for mkdir and mkpath
+bool QDir::mkdir(const QString &dirName) const
+{
+    const QDirPrivate* d = d_ptr.constData();
+
+    if (dirName.isEmpty()) {
+        qWarning("QDir::mkdir: Empty or null file name(s)");
+        return false;
+    }
+
+    QString fn = filePath(dirName);
+    if (d->fileEngine.isNull())
+        return QFileSystemEngine::createDirectory(QFileSystemEntry(fn), false);
+    return d->fileEngine->mkdir(fn, false);
+}
+
+/*!
+    Removes the directory specified by \a dirName.
+
+    The directory must be empty for rmdir() to succeed.
+
+    Returns true if successful; otherwise returns false.
+
+    \sa mkdir()
+*/
+bool QDir::rmdir(const QString &dirName) const
+{
+    const QDirPrivate* d = d_ptr.constData();
+
+    if (dirName.isEmpty()) {
+        qWarning("QDir::rmdir: Empty or null file name(s)");
+        return false;
+    }
+
+    QString fn = filePath(dirName);
+    if (d->fileEngine.isNull())
+        return QFileSystemEngine::removeDirectory(QFileSystemEntry(fn), false);
+
+    return d->fileEngine->rmdir(fn, false);
+}
+
+/*!
+    Creates the directory path \a dirPath.
+
+    The function will create all parent directories necessary to
+    create the directory.
+
+    Returns true if successful; otherwise returns false.
+
+    If the path already exists when this function is called, it will return true.
+
+    \sa rmpath()
+*/
+// ### Qt5: behaviour when directory already exists should be made consistent for mkdir and mkpath
+bool QDir::mkpath(const QString &dirPath) const
+{
+    const QDirPrivate* d = d_ptr.constData();
+
+    if (dirPath.isEmpty()) {
+        qWarning("QDir::mkpath: Empty or null file name(s)");
+        return false;
+    }
+
+    QString fn = filePath(dirPath);
+    if (d->fileEngine.isNull())
+        return QFileSystemEngine::createDirectory(QFileSystemEntry(fn), true);
+    return d->fileEngine->mkdir(fn, true);
+}
+
+/*!
+    Removes the directory path \a dirPath.
+
+    The function will remove all parent directories in \a dirPath,
+    provided that they are empty. This is the opposite of
+    mkpath(dirPath).
+
+    Returns true if successful; otherwise returns false.
+
+    \sa mkpath()
+*/
+bool QDir::rmpath(const QString &dirPath) const
+{
+    const QDirPrivate* d = d_ptr.constData();
+
+    if (dirPath.isEmpty()) {
+        qWarning("QDir::rmpath: Empty or null file name(s)");
+        return false;
+    }
+
+    QString fn = filePath(dirPath);
+    if (d->fileEngine.isNull())
+        return QFileSystemEngine::removeDirectory(QFileSystemEntry(fn), true);
+    return d->fileEngine->rmdir(fn, true);
+}
+
+/*!
+    Returns true if the directory is readable \e and we can open files
+    by name; otherwise returns false.
+
+    \warning A false value from this function is not a guarantee that
+    files in the directory are not accessible.
+
+    \sa QFileInfo::isReadable()
+*/
+bool QDir::isReadable() const
+{
+    const QDirPrivate* d = d_ptr.constData();
+
+    if (d->fileEngine.isNull()) {
+        if (!d->metaData.hasFlags(QFileSystemMetaData::UserReadPermission))
+            QFileSystemEngine::fillMetaData(d->dirEntry, d->metaData, QFileSystemMetaData::UserReadPermission);
+
+        return (d->metaData.permissions() & QFile::ReadUser) != 0;
+    }
+
+    const QAbstractFileEngine::FileFlags info =
+        d->fileEngine->fileFlags(QAbstractFileEngine::DirectoryType
+                                       | QAbstractFileEngine::PermsMask);
+    if (!(info & QAbstractFileEngine::DirectoryType))
+        return false;
+    return info & QAbstractFileEngine::ReadUserPerm;
+}
+
+/*!
+    \overload
+
+    Returns true if the directory exists; otherwise returns false.
+    (If a file with the same name is found this function will return false).
+
+    The overload of this function that accepts an argument is used to test
+    for the presence of files and directories within a directory.
+
+    \sa QFileInfo::exists(), QFile::exists()
+*/
+bool QDir::exists() const
+{
+    return d_ptr->exists();
+}
+
+/*!
+    Returns true if the directory is the root directory; otherwise
+    returns false.
+
+    Note: If the directory is a symbolic link to the root directory
+    this function returns false. If you want to test for this use
+    canonicalPath(), e.g.
+
+    \snippet doc/src/snippets/code/src_corelib_io_qdir.cpp 9
+
+    \sa root(), rootPath()
+*/
+bool QDir::isRoot() const
+{
+    if (d_ptr->fileEngine.isNull())
+        return d_ptr->dirEntry.isRoot();
+    return d_ptr->fileEngine->fileFlags(QAbstractFileEngine::FlagsMask) & QAbstractFileEngine::RootFlag;
+}
+
+/*!
+    \fn bool QDir::isAbsolute() const
+
+    Returns true if the directory's path is absolute; otherwise
+    returns false. See isAbsolutePath().
+
+    \sa isRelative() makeAbsolute() cleanPath()
+*/
+
+/*!
+   \fn bool QDir::isAbsolutePath(const QString &)
+
+    Returns true if \a path is absolute; returns false if it is
+    relative.
+
+    \sa isAbsolute() isRelativePath() makeAbsolute() cleanPath()
+*/
+
+/*!
+    Returns true if the directory path is relative; otherwise returns
+    false. (Under Unix a path is relative if it does not start with a
+    "/").
+
+    \sa makeAbsolute() isAbsolute() isAbsolutePath() cleanPath()
+*/
+bool QDir::isRelative() const
+{
+    if (d_ptr->fileEngine.isNull())
+        return d_ptr->dirEntry.isRelative();
+    return d_ptr->fileEngine->isRelativePath();
+}
+
+
+/*!
+    Converts the directory path to an absolute path. If it is already
+    absolute nothing happens. Returns true if the conversion
+    succeeded; otherwise returns false.
+
+    \sa isAbsolute() isAbsolutePath() isRelative() cleanPath()
+*/
+bool QDir::makeAbsolute()
+{
+    const QDirPrivate *d = d_ptr.constData();
+    QScopedPointer<QDirPrivate> dir;
+    if (!d->fileEngine.isNull()) {
+        QString absolutePath = d->fileEngine->fileName(QAbstractFileEngine::AbsoluteName);
+        if (QDir::isRelativePath(absolutePath))
+            return false;
+
+        dir.reset(new QDirPrivate(*d_ptr.constData()));
+        dir->setPath(absolutePath);
+    } else { // native FS
+        d->resolveAbsoluteEntry();
+        dir.reset(new QDirPrivate(*d_ptr.constData()));
+        dir->setPath(d->absoluteDirEntry.filePath());
+    }
+    d_ptr = dir.take(); // actually detach
+    return true;
+}
+
+/*!
+    Returns true if directory \a dir and this directory have the same
+    path and their sort and filter settings are the same; otherwise
+    returns false.
+
+    Example:
+
+    \snippet doc/src/snippets/code/src_corelib_io_qdir.cpp 10
+*/
+bool QDir::operator==(const QDir &dir) const
+{
+    const QDirPrivate *d = d_ptr.constData();
+    const QDirPrivate *other = dir.d_ptr.constData();
+
+    if (d == other)
+        return true;
+    Qt::CaseSensitivity sensitive;
+    if (d->fileEngine.isNull() || other->fileEngine.isNull()) {
+        if (d->fileEngine.data() != other->fileEngine.data()) // one is native, the other is a custom file-engine
+            return false;
+
+        sensitive = QFileSystemEngine::isCaseSensitive() ? Qt::CaseSensitive : Qt::CaseInsensitive;
+    } else {
+        if (d->fileEngine->caseSensitive() != other->fileEngine->caseSensitive())
+            return false;
+        sensitive = d->fileEngine->caseSensitive() ? Qt::CaseSensitive : Qt::CaseInsensitive;
+    }
+
+    if (d->filters == other->filters
+       && d->sort == other->sort
+       && d->nameFilters == other->nameFilters) {
+        d->resolveAbsoluteEntry();
+        other->resolveAbsoluteEntry();
+        return d->absoluteDirEntry.filePath().compare(other->absoluteDirEntry.filePath(), sensitive) == 0;
+    }
+    return false;
+}
+
+/*!
+    Makes a copy of the \a dir object and assigns it to this QDir
+    object.
+*/
+QDir &QDir::operator=(const QDir &dir)
+{
+    d_ptr = dir.d_ptr;
+    return *this;
+}
+
+/*!
+    \overload
+    \obsolete
+
+    Sets the directory path to the given \a path.
+
+    Use setPath() instead.
+*/
+QDir &QDir::operator=(const QString &path)
+{
+    d_ptr->setPath(path);
+    return *this;
+}
+
+/*!
+    \fn bool QDir::operator!=(const QDir &dir) const
+
+    Returns true if directory \a dir and this directory have different
+    paths or different sort or filter settings; otherwise returns
+    false.
+
+    Example:
+
+    \snippet doc/src/snippets/code/src_corelib_io_qdir.cpp 11
+*/
+
+/*!
+    Removes the file, \a fileName.
+
+    Returns true if the file is removed successfully; otherwise
+    returns false.
+*/
+bool QDir::remove(const QString &fileName)
+{
+    if (fileName.isEmpty()) {
+        qWarning("QDir::remove: Empty or null file name");
+        return false;
+    }
+    return QFile::remove(filePath(fileName));
+}
+
+/*!
+    Renames a file or directory from \a oldName to \a newName, and returns
+    true if successful; otherwise returns false.
+
+    On most file systems, rename() fails only if \a oldName does not
+    exist, if \a newName and \a oldName are not on the same
+    partition or if a file with the new name already exists.
+    However, there are also other reasons why rename() can
+    fail. For example, on at least one file system rename() fails if
+    \a newName points to an open file.
+*/
+bool QDir::rename(const QString &oldName, const QString &newName)
+{
+    if (oldName.isEmpty() || newName.isEmpty()) {
+        qWarning("QDir::rename: Empty or null file name(s)");
+        return false;
+    }
+
+    QFile file(filePath(oldName));
+    if (!file.exists())
+        return false;
+    return file.rename(filePath(newName));
+}
+
+/*!
+    Returns true if the file called \a name exists; otherwise returns
+    false.
+
+    Unless \a name contains an absolute file path, the file name is assumed
+    to be relative to the directory itself, so this function is typically used
+    to check for the presence of files within a directory.
+
+    \sa QFileInfo::exists(), QFile::exists()
+*/
+bool QDir::exists(const QString &name) const
+{
+    if (name.isEmpty()) {
+        qWarning("QDir::exists: Empty or null file name");
+        return false;
+    }
+    return QFile::exists(filePath(name));
+}
+
+/*!
+    Returns a list of the root directories on this system.
+
+    On Windows this returns a list of QFileInfo objects containing "C:/",
+    "D:/", etc. On other operating systems, it returns a list containing
+    just one root directory (i.e. "/").
+
+    \sa root(), rootPath()
+*/
+QFileInfoList QDir::drives()
+{
+#ifdef QT_NO_FSFILEENGINE
+    return QFileInfoList();
+#else
+    return QFSFileEngine::drives();
+#endif
+}
+
+/*!
+    Returns the native directory separator: "/" under Unix (including
+    Mac OS X) and "\\" under Windows.
+
+    You do not need to use this function to build file paths. If you
+    always use "/", Qt will translate your paths to conform to the
+    underlying operating system. If you want to display paths to the
+    user using their operating system's separator use
+    toNativeSeparators().
+*/
+QChar QDir::separator()
+{
+#if defined (Q_FS_FAT) || defined(Q_WS_WIN) || defined(Q_OS_SYMBIAN)
+    return QLatin1Char('\\');
+#elif defined(Q_OS_UNIX)
+    return QLatin1Char('/');
+#elif defined (Q_OS_MAC)
+    return QLatin1Char(':');
+#else
+    return QLatin1Char('/');
+#endif
+}
+
+/*!
+    Sets the application's current working directory to \a path.
+    Returns true if the directory was successfully changed; otherwise
+    returns false.
+
+    \sa current(), currentPath(), home(), root(), temp()
+*/
+bool QDir::setCurrent(const QString &path)
+{
+    return QFileSystemEngine::setCurrentPath(QFileSystemEntry(path));
+}
+
+/*!
+    \fn QDir QDir::current()
+
+    Returns the application's current directory.
+
+    The directory is constructed using the absolute path of the current directory,
+    ensuring that its path() will be the same as its absolutePath().
+
+    \sa currentPath(), setCurrent(), home(), root(), temp()
+*/
+
+/*!
+    Returns the absolute path of the application's current directory.
+
+    \sa current(), setCurrent(), homePath(), rootPath(), tempPath()
+*/
+QString QDir::currentPath()
+{
+    return QFileSystemEngine::currentPath().filePath();
+}
+
+/*!
+  \fn QString QDir::currentDirPath()
+    Returns the absolute path of the application's current directory.
+
+    Use currentPath() instead.
+
+    \sa currentPath(), setCurrent()
+*/
+
+/*!
+    \fn QDir QDir::home()
+
+    Returns the user's home directory.
+
+    The directory is constructed using the absolute path of the home directory,
+    ensuring that its path() will be the same as its absolutePath().
+
+    See homePath() for details.
+
+    \sa drives(), current(), root(), temp()
+*/
+
+/*!
+    Returns the absolute path of the user's home directory.
+
+    Under Windows this function will return the directory of the
+    current user's profile. Typically, this is:
+
+    \snippet doc/src/snippets/code/src_corelib_io_qdir.cpp 12
+
+    Use the toNativeSeparators() function to convert the separators to
+    the ones that are appropriate for the underlying operating system.
+
+    If the directory of the current user's profile does not exist or
+    cannot be retrieved, the following alternatives will be checked (in
+    the given order) until an existing and available path is found:
+
+    \list 1
+    \o The path specified by the \c USERPROFILE environment variable.
+    \o The path formed by concatenating the \c HOMEDRIVE and \c HOMEPATH
+    environment variables.
+    \o The path specified by the \c HOME environment variable.
+    \o The path returned by the rootPath() function (which uses the \c SystemDrive
+    environment variable)
+    \o  The \c{C:/} directory.
+    \endlist
+
+    Under non-Windows operating systems the \c HOME environment
+    variable is used if it exists, otherwise the path returned by the
+    rootPath(). On Symbian always the same as the path returned by the rootPath().
+
+    \sa home(), currentPath(), rootPath(), tempPath()
+*/
+QString QDir::homePath()
+{
+    return QFileSystemEngine::homePath();
+}
+
+/*!
+    \fn QString QDir::homeDirPath()
+
+    Returns the absolute path of the user's home directory.
+
+    Use homePath() instead.
+
+    \sa homePath()
+*/
+
+/*!
+    \fn QDir QDir::temp()
+
+    Returns the system's temporary directory.
+
+    The directory is constructed using the absolute path of the temporary directory,
+    ensuring that its path() will be the same as its absolutePath().
+
+    See tempPath() for details.
+
+    \sa drives(), current(), home(), root()
+*/
+
+/*!
+    Returns the absolute path of the system's temporary directory.
+
+    On Unix/Linux systems this is the path in the \c TMPDIR environment
+    variable or \c{/tmp} if \c TMPDIR is not defined. On Windows this is
+    usually the path in the \c TEMP or \c TMP environment
+    variable. Whether a directory separator is added to the end or
+    not, depends on the operating system.
+
+    \sa temp(), currentPath(), homePath(), rootPath()
+*/
+QString QDir::tempPath()
+{
+    return QFileSystemEngine::tempPath();
+}
+
+/*!
+    \fn QDir QDir::root()
+
+    Returns the root directory.
+
+    The directory is constructed using the absolute path of the root directory,
+    ensuring that its path() will be the same as its absolutePath().
+
+    See rootPath() for details.
+
+    \sa drives(), current(), home(), temp()
+*/
+
+/*!
+    Returns the absolute path of the root directory.
+
+    For Unix operating systems this returns "/". For Windows file
+    systems this normally returns "c:/". On Symbian this typically returns
+    "c:/data", i.e. the same as native PathInfo::PhoneMemoryRootPath().
+
+    \sa root(), drives(), currentPath(), homePath(), tempPath()
+*/
+QString QDir::rootPath()
+{
+    return QFileSystemEngine::rootPath();
+}
+
+/*!
+    \fn QString QDir::rootDirPath()
+
+    Returns the absolute path of the root directory.
+
+    Use rootPath() instead.
+
+    \sa rootPath()
+*/
+
+#ifndef QT_NO_REGEXP
+/*!
+    \overload
+
+    Returns true if the \a fileName matches any of the wildcard (glob)
+    patterns in the list of \a filters; otherwise returns false. The
+    matching is case insensitive.
+
+    \sa {QRegExp wildcard matching}, QRegExp::exactMatch() entryList() entryInfoList()
+*/
+bool QDir::match(const QStringList &filters, const QString &fileName)
+{
+    for (QStringList::ConstIterator sit = filters.constBegin(); sit != filters.constEnd(); ++sit) {
+        QRegExp rx(*sit, Qt::CaseInsensitive, QRegExp::Wildcard);
+        if (rx.exactMatch(fileName))
+            return true;
+    }
+    return false;
+}
+
+/*!
+    Returns true if the \a fileName matches the wildcard (glob)
+    pattern \a filter; otherwise returns false. The \a filter may
+    contain multiple patterns separated by spaces or semicolons.
+    The matching is case insensitive.
+
+    \sa {QRegExp wildcard matching}, QRegExp::exactMatch() entryList() entryInfoList()
+*/
+bool QDir::match(const QString &filter, const QString &fileName)
+{
+    return match(nameFiltersFromString(filter), fileName);
+}
+#endif // QT_NO_REGEXP
+
+/*!
+    Removes all multiple directory separators "/" and resolves any
+    "."s or ".."s found in the path, \a path.
+
+    Symbolic links are kept. This function does not return the
+    canonical path, but rather the simplest version of the input.
+    For example, "./local" becomes "local", "local/../bin" becomes
+    "bin" and "/local/usr/../bin" becomes "/local/bin".
+
+    \sa absolutePath() canonicalPath()
+*/
+QString QDir::cleanPath(const QString &path)
+{
+    if (path.isEmpty())
+        return path;
+    QString name = path;
+    QChar dir_separator = separator();
+    if (dir_separator != QLatin1Char('/'))
+       name.replace(dir_separator, QLatin1Char('/'));
+
+    int used = 0, levels = 0;
+    const int len = name.length();
+    QVarLengthArray<QChar> outVector(len);
+    QChar *out = outVector.data();
+
+    const QChar *p = name.unicode();
+    for (int i = 0, last = -1, iwrite = 0; i < len; ++i) {
+        if (p[i] == QLatin1Char('/')) {
+            while (i < len-1 && p[i+1] == QLatin1Char('/')) {
+#if defined(Q_OS_WIN) && !defined(Q_OS_WINCE) //allow unc paths
+                if (!i)
+                    break;
+#endif
+                i++;
+            }
+            bool eaten = false;
+            if (i < len - 1 && p[i+1] == QLatin1Char('.')) {
+                int dotcount = 1;
+                if (i < len - 2 && p[i+2] == QLatin1Char('.'))
+                    dotcount++;
+                if (i == len - dotcount - 1) {
+                    if (dotcount == 1) {
+                        break;
+                    } else if (levels) {
+                        if (last == -1) {
+                            for (int i2 = iwrite-1; i2 >= 0; i2--) {
+                                if (out[i2] == QLatin1Char('/')) {
+                                    last = i2;
+                                    break;
+                                }
+                            }
+                        }
+                        used -= iwrite - last - 1;
+                        break;
+                    }
+                } else if (p[i+dotcount+1] == QLatin1Char('/')) {
+                    if (dotcount == 2 && levels) {
+                        if (last == -1 || iwrite - last == 1) {
+                            for (int i2 = (last == -1) ? (iwrite-1) : (last-1); i2 >= 0; i2--) {
+                                if (out[i2] == QLatin1Char('/')) {
+                                    eaten = true;
+                                    last = i2;
+                                    break;
+                                }
+                            }
+                        } else {
+                            eaten = true;
+                        }
+                        if (eaten) {
+                            levels--;
+                            used -= iwrite - last;
+                            iwrite = last;
+                            last = -1;
+                        }
+                    } else if (dotcount == 2 && i > 0 && p[i - 1] != QLatin1Char('.')) {
+                        eaten = true;
+                        used -= iwrite - qMax(0, last);
+                        iwrite = qMax(0, last);
+                        last = -1;
+                        ++i;
+                    } else if (dotcount == 1) {
+                        eaten = true;
+                    }
+                    if (eaten)
+                        i += dotcount;
+                } else {
+                    levels++;
+                }
+            } else if (last != -1 && iwrite - last == 1) {
+#if defined(Q_OS_WIN) || defined(Q_OS_SYMBIAN)
+                eaten = (iwrite > 2);
+#else
+                eaten = true;
+#endif
+                last = -1;
+            } else if (last != -1 && i == len-1) {
+                eaten = true;
+            } else {
+                levels++;
+            }
+            if (!eaten)
+                last = i - (i - iwrite);
+            else
+                continue;
+        } else if (!i && p[i] == QLatin1Char('.')) {
+            int dotcount = 1;
+            if (len >= 1 && p[1] == QLatin1Char('.'))
+                dotcount++;
+            if (len >= dotcount && p[dotcount] == QLatin1Char('/')) {
+                if (dotcount == 1) {
+                    i++;
+                    while (i+1 < len-1 && p[i+1] == QLatin1Char('/'))
+                        i++;
+                    continue;
+                }
+            }
+        }
+        out[iwrite++] = p[i];
+        used++;
+    }
+
+    QString ret = (used == len ? name : QString(out, used));
+    // Strip away last slash except for root directories
+    if (ret.length() > 1 && ret.endsWith(QLatin1Char('/'))) {
+#if defined (Q_OS_WIN) || defined (Q_OS_SYMBIAN)
+        if (!(ret.length() == 3 && ret.at(1) == QLatin1Char(':')))
+#endif
+            ret.chop(1);
+    }
+
+    return ret;
+}
+
+/*!
+    Returns true if \a path is relative; returns false if it is
+    absolute.
+
+    \sa isRelative() isAbsolutePath() makeAbsolute()
+*/
+bool QDir::isRelativePath(const QString &path)
+{
+    return QFileInfo(path).isRelative();
+}
+
+/*!
+    Refreshes the directory information.
+*/
+void QDir::refresh() const
+{
+    QDirPrivate *d = const_cast<QDir*>(this)->d_ptr.data();
+    d->metaData.clear();
+    d->initFileEngine();
+    d->clearFileLists();
+}
+
+/*!
+    \internal
+
+    Returns a list of name filters from the given \a nameFilter. (If
+    there is more than one filter, each pair of filters is separated
+    by a space or by a semicolon.)
+*/
+QStringList QDir::nameFiltersFromString(const QString &nameFilter)
+{
+    return QDirPrivate::splitFilters(nameFilter);
+}
+
+/*!
+    \macro void Q_INIT_RESOURCE(name)
+    \relates QDir
+
+    Initializes the resources specified by the \c .qrc file with the
+    specified base \a name. Normally, Qt resources are loaded
+    automatically at startup. The Q_INIT_RESOURCE() macro is
+    necessary on some platforms for resources stored in a static
+    library.
+
+    For example, if your application's resources are listed in a file
+    called \c myapp.qrc, you can ensure that the resources are
+    initialized at startup by adding this line to your \c main()
+    function:
+
+    \snippet doc/src/snippets/code/src_corelib_io_qdir.cpp 13
+
+    If the file name contains characters that cannot be part of a valid C++ function name
+    (such as '-'), they have to be replaced by the underscore character ('_').
+
+    Note: This macro cannot be used in a namespace. It should be called from
+    main(). If that is not possible, the following workaround can be used
+    to init the resource \c myapp from the function \c{MyNamespace::myFunction}:
+
+    \snippet doc/src/snippets/code/src_corelib_io_qdir.cpp 14
+
+    \sa Q_CLEANUP_RESOURCE(), {The Qt Resource System}
+*/
+
+/*!
+    \since 4.1
+    \macro void Q_CLEANUP_RESOURCE(name)
+    \relates QDir
+
+    Unloads the resources specified by the \c .qrc file with the base
+    name \a name.
+
+    Normally, Qt resources are unloaded automatically when the
+    application terminates, but if the resources are located in a
+    plugin that is being unloaded, call Q_CLEANUP_RESOURCE() to force
+    removal of your resources.
+
+    Note: This macro cannot be used in a namespace. Please see the
+    Q_INIT_RESOURCE documentation for a workaround.
+
+    Example:
+
+    \snippet doc/src/snippets/code/src_corelib_io_qdir.cpp 15
+
+    \sa Q_INIT_RESOURCE(), {The Qt Resource System}
+*/
+
+#ifdef QT3_SUPPORT
+
+/*!
+    \fn bool QDir::matchAllDirs() const
+
+    Use filter() & AllDirs instead.
+*/
+bool QDir::matchAllDirs() const
+{
+    const QDirPrivate* d = d_ptr.constData();
+    return d->matchAllDirs;
+}
+
+
+/*!
+    \fn void QDir::setMatchAllDirs(bool on)
+
+    Use setFilter() instead.
+*/
+void QDir::setMatchAllDirs(bool on)
+{
+    QDirPrivate* d = d_ptr.data();
+    d->initFileEngine();
+    d->clearFileLists();
+
+    d->matchAllDirs = on;
+}
+
+/*!
+    Use nameFilters() instead.
+*/
+QString QDir::nameFilter() const
+{
+    const QDirPrivate* d = d_ptr.constData();
+    return nameFilters().join(QString(d->filterSepChar));
+}
+
+/*!
+    Use setNameFilters() instead.
+
+    The \a nameFilter is a wildcard (globbing) filter that understands
+    "*" and "?" wildcards. (See \l{QRegExp wildcard matching}.) You may
+    specify several filter entries, each separated by spaces or by
+    semicolons.
+
+    For example, if you want entryList() and entryInfoList() to list
+    all files ending with either ".cpp" or ".h", you would use either
+    dir.setNameFilters("*.cpp *.h") or dir.setNameFilters("*.cpp;*.h").
+
+    \oldcode
+        QString filter = "*.cpp *.cxx *.cc";
+        dir.setNameFilter(filter);
+    \newcode
+        QString filter = "*.cpp *.cxx *.cc";
+        dir.setNameFilters(filter.split(' '));
+    \endcode
+*/
+void QDir::setNameFilter(const QString &nameFilter)
+{
+    QDirPrivate* d = d_ptr.data();
+    d->initFileEngine();
+    d->clearFileLists();
+
+    d->filterSepChar = QDirPrivate::getFilterSepChar(nameFilter);
+    d->nameFilters = QDirPrivate::splitFilters(nameFilter, d->filterSepChar);
+}
+
+/*!
+    \fn QString QDir::absPath() const
+
+    Use absolutePath() instead.
+*/
+
+/*!
+    \fn QString QDir::absFilePath(const QString &fileName, bool acceptAbsPath) const
+
+    Use absoluteFilePath(\a fileName) instead.
+
+    The \a acceptAbsPath parameter is ignored.
+*/
+
+/*!
+    \fn bool QDir::mkdir(const QString &dirName, bool acceptAbsPath) const
+
+    Use mkdir(\a dirName) instead.
+
+    The \a acceptAbsPath parameter is ignored.
+*/
+
+/*!
+    \fn bool QDir::rmdir(const QString &dirName, bool acceptAbsPath) const
+
+    Use rmdir(\a dirName) instead.
+
+    The \a acceptAbsPath parameter is ignored.
+*/
+
+/*!
+    \fn QStringList QDir::entryList(const QString &nameFilter, Filters filters,
+                                    SortFlags sort) const
+    \overload
+
+    Use the overload that takes a name filter string list as first
+    argument instead of a combination of attribute filter flags.
+*/
+
+/*!
+    \fn QFileInfoList QDir::entryInfoList(const QString &nameFilter, Filters filters,
+                                          SortFlags sort) const
+    \overload
+
+    Use the overload that takes a name filter string list as first
+    argument instead of a combination of attribute filter flags.
+*/
+
+/*!
+    \fn void QDir::convertToAbs()
+
+    Use makeAbsolute() instead.
+*/
+
+/*!
+    \fn QString QDir::cleanDirPath(const QString &name)
+
+    Use cleanPath() instead.
+*/
+
+/*!
+    \typedef QDir::FilterSpec
+
+    Use QDir::Filters instead.
+*/
+
+/*!
+    \typedef QDir::SortSpec
+
+    Use QDir::SortFlags instead.
+*/
+#endif // QT3_SUPPORT
+
+#ifndef QT_NO_DEBUG_STREAM
+QDebug operator<<(QDebug debug, QDir::Filters filters)
+{
+    QStringList flags;
+    if (filters == QDir::NoFilter) {
+        flags << QLatin1String("NoFilter");
+    } else {
+        if (filters & QDir::Dirs) flags << QLatin1String("Dirs");
+        if (filters & QDir::AllDirs) flags << QLatin1String("AllDirs");
+        if (filters & QDir::Files) flags << QLatin1String("Files");
+        if (filters & QDir::Drives) flags << QLatin1String("Drives");
+        if (filters & QDir::NoSymLinks) flags << QLatin1String("NoSymLinks");
+        if (filters & QDir::NoDotAndDotDot) flags << QLatin1String("NoDotAndDotDot"); // ### Qt5: remove (because NoDotAndDotDot=NoDot|NoDotDot)
+        if (filters & QDir::NoDot) flags << QLatin1String("NoDot");
+        if (filters & QDir::NoDotDot) flags << QLatin1String("NoDotDot");
+        if ((filters & QDir::AllEntries) == QDir::AllEntries) flags << QLatin1String("AllEntries");
+        if (filters & QDir::Readable) flags << QLatin1String("Readable");
+        if (filters & QDir::Writable) flags << QLatin1String("Writable");
+        if (filters & QDir::Executable) flags << QLatin1String("Executable");
+        if (filters & QDir::Modified) flags << QLatin1String("Modified");
+        if (filters & QDir::Hidden) flags << QLatin1String("Hidden");
+        if (filters & QDir::System) flags << QLatin1String("System");
+        if (filters & QDir::CaseSensitive) flags << QLatin1String("CaseSensitive");
+    }
+    debug << "QDir::Filters(" << qPrintable(flags.join(QLatin1String("|"))) << ')';
+    return debug;
+}
+
+static QDebug operator<<(QDebug debug, QDir::SortFlags sorting)
+{
+    if (sorting == QDir::NoSort) {
+        debug << "QDir::SortFlags(NoSort)";
+    } else {
+        QString type;
+        if ((sorting & 3) == QDir::Name) type = QLatin1String("Name");
+        if ((sorting & 3) == QDir::Time) type = QLatin1String("Time");
+        if ((sorting & 3) == QDir::Size) type = QLatin1String("Size");
+        if ((sorting & 3) == QDir::Unsorted) type = QLatin1String("Unsorted");
+
+        QStringList flags;
+        if (sorting & QDir::DirsFirst) flags << QLatin1String("DirsFirst");
+        if (sorting & QDir::DirsLast) flags << QLatin1String("DirsLast");
+        if (sorting & QDir::IgnoreCase) flags << QLatin1String("IgnoreCase");
+        if (sorting & QDir::LocaleAware) flags << QLatin1String("LocaleAware");
+        if (sorting & QDir::Type) flags << QLatin1String("Type");
+        debug << "QDir::SortFlags(" << qPrintable(type)
+              << '|'
+              << qPrintable(flags.join(QLatin1String("|"))) << ')';
+    }
+    return debug;
+}
+
+QDebug operator<<(QDebug debug, const QDir &dir)
+{
+    debug.maybeSpace() << "QDir(" << dir.path()
+                       << ", nameFilters = {"
+                       << qPrintable(dir.nameFilters().join(QLatin1String(",")))
+                       << "}, "
+                       << dir.sorting()
+                       << ','
+                       << dir.filter()
+                       << ')';
+    return debug.space();
+}
+#endif // QT_NO_DEBUG_STREAM
+
+QT_END_NAMESPACE