Replace Q_DECL_OVERRIDE with override where possible

Remaining uses of Q_DECL_OVERRIDE are in:

src/corelib/global/qcompilerdetection.h
src/corelib/global/qglobal.cpp
doc/global/qt-cpp-defines.qdocconf
  (definition and documentation of Q_DECL_OVERRIDE)
tests/manual/qcursor/qcursorhighdpi/main.cpp
  (a test executable compilable both under Qt4 and Qt5)

Change-Id: Ib9b05d829add69e98a86238274b6a1fcb19b49ba
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Ville Voutilainen <ville.voutilainen@qt.io>
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>

18 files changed, 164 insertions, 164 deletions

diff --git a/src/corelib/io/qbuffer.cpp b/src/corelib/io/qbuffer.cpp
index 86dd737809..e0b9c41323 100644
--- a/src/corelib/io/qbuffer.cpp
+++ b/src/corelib/io/qbuffer.cpp
@@ -60,8 +60,8 @@ public:
     QByteArray *buf;
     QByteArray defaultBuf;
 
-    virtual qint64 peek(char *data, qint64 maxSize) Q_DECL_OVERRIDE;
-    virtual QByteArray peek(qint64 maxSize) Q_DECL_OVERRIDE;
+    virtual qint64 peek(char *data, qint64 maxSize) override;
+    virtual QByteArray peek(qint64 maxSize) override;
 
 #ifndef QT_NO_QOBJECT
     // private slots
diff --git a/src/corelib/io/qbuffer.h b/src/corelib/io/qbuffer.h
index fd05dff311..1c5b16ee50 100644
--- a/src/corelib/io/qbuffer.h
+++ b/src/corelib/io/qbuffer.h
@@ -73,22 +73,22 @@ public:
     inline void setData(const char *data, int len);
     const QByteArray &data() const;
 
-    bool open(OpenMode openMode) Q_DECL_OVERRIDE;
+    bool open(OpenMode openMode) override;
 
-    void close() Q_DECL_OVERRIDE;
-    qint64 size() const Q_DECL_OVERRIDE;
-    qint64 pos() const Q_DECL_OVERRIDE;
-    bool seek(qint64 off) Q_DECL_OVERRIDE;
-    bool atEnd() const Q_DECL_OVERRIDE;
-    bool canReadLine() const Q_DECL_OVERRIDE;
+    void close() override;
+    qint64 size() const override;
+    qint64 pos() const override;
+    bool seek(qint64 off) override;
+    bool atEnd() const override;
+    bool canReadLine() const override;
 
 protected:
 #ifndef QT_NO_QOBJECT
-    void connectNotify(const QMetaMethod &) Q_DECL_OVERRIDE;
-    void disconnectNotify(const QMetaMethod &) Q_DECL_OVERRIDE;
+    void connectNotify(const QMetaMethod &) override;
+    void disconnectNotify(const QMetaMethod &) override;
 #endif
-    qint64 readData(char *data, qint64 maxlen) Q_DECL_OVERRIDE;
-    qint64 writeData(const char *data, qint64 len) Q_DECL_OVERRIDE;
+    qint64 readData(char *data, qint64 maxlen) override;
+    qint64 writeData(const char *data, qint64 len) override;
 
 private:
     Q_DECLARE_PRIVATE(QBuffer)
diff --git a/src/corelib/io/qfile.h b/src/corelib/io/qfile.h
index c5819e8076..02d644446d 100644
--- a/src/corelib/io/qfile.h
+++ b/src/corelib/io/qfile.h
@@ -70,7 +70,7 @@ public:
 #endif
     ~QFile();
 
-    QString fileName() const Q_DECL_OVERRIDE;
+    QString fileName() const override;
     void setFileName(const QString &name);
 
 #if defined(Q_OS_DARWIN)
@@ -124,18 +124,18 @@ public:
     bool copy(const QString &newName);
     static bool copy(const QString &fileName, const QString &newName);
 
-    bool open(OpenMode flags) Q_DECL_OVERRIDE;
+    bool open(OpenMode flags) override;
     bool open(FILE *f, OpenMode ioFlags, FileHandleFlags handleFlags=DontCloseHandle);
     bool open(int fd, OpenMode ioFlags, FileHandleFlags handleFlags=DontCloseHandle);
 
-    qint64 size() const Q_DECL_OVERRIDE;
+    qint64 size() const override;
 
-    bool resize(qint64 sz) Q_DECL_OVERRIDE;
+    bool resize(qint64 sz) override;
     static bool resize(const QString &filename, qint64 sz);
 
-    Permissions permissions() const Q_DECL_OVERRIDE;
+    Permissions permissions() const override;
     static Permissions permissions(const QString &filename);
-    bool setPermissions(Permissions permissionSpec) Q_DECL_OVERRIDE;
+    bool setPermissions(Permissions permissionSpec) override;
     static bool setPermissions(const QString &filename, Permissions permissionSpec);
 
 protected:
diff --git a/src/corelib/io/qfiledevice.h b/src/corelib/io/qfiledevice.h
index e941781c25..020c90afaf 100644
--- a/src/corelib/io/qfiledevice.h
+++ b/src/corelib/io/qfiledevice.h
@@ -100,19 +100,19 @@ public:
     FileError error() const;
     void unsetError();
 
-    virtual void close() Q_DECL_OVERRIDE;
+    virtual void close() override;
 
-    bool isSequential() const Q_DECL_OVERRIDE;
+    bool isSequential() const override;
 
     int handle() const;
     virtual QString fileName() const;
 
-    qint64 pos() const Q_DECL_OVERRIDE;
-    bool seek(qint64 offset) Q_DECL_OVERRIDE;
-    bool atEnd() const Q_DECL_OVERRIDE;
+    qint64 pos() const override;
+    bool seek(qint64 offset) override;
+    bool atEnd() const override;
     bool flush();
 
-    qint64 size() const Q_DECL_OVERRIDE;
+    qint64 size() const override;
 
     virtual bool resize(qint64 sz);
     virtual Permissions permissions() const;
@@ -139,9 +139,9 @@ protected:
     QFileDevice(QFileDevicePrivate &dd, QObject *parent = Q_NULLPTR);
 #endif
 
-    qint64 readData(char *data, qint64 maxlen) Q_DECL_OVERRIDE;
-    qint64 writeData(const char *data, qint64 len) Q_DECL_OVERRIDE;
-    qint64 readLineData(char *data, qint64 maxlen) Q_DECL_OVERRIDE;
+    qint64 readData(char *data, qint64 maxlen) override;
+    qint64 writeData(const char *data, qint64 len) override;
+    qint64 readLineData(char *data, qint64 maxlen) override;
 
 private:
     Q_DISABLE_COPY(QFileDevice)
diff --git a/src/corelib/io/qfiledevice_p.h b/src/corelib/io/qfiledevice_p.h
index 60c51afb7e..47053d01b7 100644
--- a/src/corelib/io/qfiledevice_p.h
+++ b/src/corelib/io/qfiledevice_p.h
@@ -69,7 +69,7 @@ protected:
 
     inline bool ensureFlushed() const;
 
-    bool putCharHelper(char c) Q_DECL_OVERRIDE;
+    bool putCharHelper(char c) override;
 
     void setError(QFileDevice::FileError err);
     void setError(QFileDevice::FileError err, const QString &errorString);
diff --git a/src/corelib/io/qfilesystemwatcher_inotify_p.h b/src/corelib/io/qfilesystemwatcher_inotify_p.h
index 777d62dc8a..0c873466c8 100644
--- a/src/corelib/io/qfilesystemwatcher_inotify_p.h
+++ b/src/corelib/io/qfilesystemwatcher_inotify_p.h
@@ -70,8 +70,8 @@ public:
 
     static QInotifyFileSystemWatcherEngine *create(QObject *parent);
 
-    QStringList addPaths(const QStringList &paths, QStringList *files, QStringList *directories) Q_DECL_OVERRIDE;
-    QStringList removePaths(const QStringList &paths, QStringList *files, QStringList *directories) Q_DECL_OVERRIDE;
+    QStringList addPaths(const QStringList &paths, QStringList *files, QStringList *directories) override;
+    QStringList removePaths(const QStringList &paths, QStringList *files, QStringList *directories) override;
 
 private Q_SLOTS:
     void readFromInotify();
diff --git a/src/corelib/io/qfilesystemwatcher_polling_p.h b/src/corelib/io/qfilesystemwatcher_polling_p.h
index 6dff08ac05..4c46633fdf 100644
--- a/src/corelib/io/qfilesystemwatcher_polling_p.h
+++ b/src/corelib/io/qfilesystemwatcher_polling_p.h
@@ -110,8 +110,8 @@ class QPollingFileSystemWatcherEngine : public QFileSystemWatcherEngine
 public:
     QPollingFileSystemWatcherEngine(QObject *parent);
 
-    QStringList addPaths(const QStringList &paths, QStringList *files, QStringList *directories) Q_DECL_OVERRIDE;
-    QStringList removePaths(const QStringList &paths, QStringList *files, QStringList *directories) Q_DECL_OVERRIDE;
+    QStringList addPaths(const QStringList &paths, QStringList *files, QStringList *directories) override;
+    QStringList removePaths(const QStringList &paths, QStringList *files, QStringList *directories) override;
 
 private Q_SLOTS:
     void timeout();
diff --git a/src/corelib/io/qfsfileengine_iterator_p.h b/src/corelib/io/qfsfileengine_iterator_p.h
index 7f094ba9d7..bde00bf578 100644
--- a/src/corelib/io/qfsfileengine_iterator_p.h
+++ b/src/corelib/io/qfsfileengine_iterator_p.h
@@ -68,11 +68,11 @@ public:
     QFSFileEngineIterator(QDir::Filters filters, const QStringList &filterNames);
     ~QFSFileEngineIterator();
 
-    QString next() Q_DECL_OVERRIDE;
-    bool hasNext() const Q_DECL_OVERRIDE;
+    QString next() override;
+    bool hasNext() const override;
 
-    QString currentFileName() const Q_DECL_OVERRIDE;
-    QFileInfo currentFileInfo() const Q_DECL_OVERRIDE;
+    QString currentFileName() const override;
+    QFileInfo currentFileInfo() const override;
 
 private:
     void advance() const;
diff --git a/src/corelib/io/qfsfileengine_p.h b/src/corelib/io/qfsfileengine_p.h
index 1f34dfc2be..bf90995fdd 100644
--- a/src/corelib/io/qfsfileengine_p.h
+++ b/src/corelib/io/qfsfileengine_p.h
@@ -71,49 +71,49 @@ public:
     explicit QFSFileEngine(const QString &file);
     ~QFSFileEngine();
 
-    bool open(QIODevice::OpenMode openMode) Q_DECL_OVERRIDE;
+    bool open(QIODevice::OpenMode openMode) override;
     bool open(QIODevice::OpenMode flags, FILE *fh);
-    bool close() Q_DECL_OVERRIDE;
-    bool flush() Q_DECL_OVERRIDE;
-    bool syncToDisk() Q_DECL_OVERRIDE;
-    qint64 size() const Q_DECL_OVERRIDE;
-    qint64 pos() const Q_DECL_OVERRIDE;
-    bool seek(qint64) Q_DECL_OVERRIDE;
-    bool isSequential() const Q_DECL_OVERRIDE;
-    bool remove() Q_DECL_OVERRIDE;
-    bool copy(const QString &newName) Q_DECL_OVERRIDE;
-    bool rename(const QString &newName) Q_DECL_OVERRIDE;
-    bool renameOverwrite(const QString &newName) Q_DECL_OVERRIDE;
-    bool link(const QString &newName) Q_DECL_OVERRIDE;
-    bool mkdir(const QString &dirName, bool createParentDirectories) const Q_DECL_OVERRIDE;
-    bool rmdir(const QString &dirName, bool recurseParentDirectories) const Q_DECL_OVERRIDE;
-    bool setSize(qint64 size) Q_DECL_OVERRIDE;
-    bool caseSensitive() const Q_DECL_OVERRIDE;
-    bool isRelativePath() const Q_DECL_OVERRIDE;
-    QStringList entryList(QDir::Filters filters, const QStringList &filterNames) const Q_DECL_OVERRIDE;
-    FileFlags fileFlags(FileFlags type) const Q_DECL_OVERRIDE;
-    bool setPermissions(uint perms) Q_DECL_OVERRIDE;
+    bool close() override;
+    bool flush() override;
+    bool syncToDisk() override;
+    qint64 size() const override;
+    qint64 pos() const override;
+    bool seek(qint64) override;
+    bool isSequential() const override;
+    bool remove() override;
+    bool copy(const QString &newName) override;
+    bool rename(const QString &newName) override;
+    bool renameOverwrite(const QString &newName) override;
+    bool link(const QString &newName) override;
+    bool mkdir(const QString &dirName, bool createParentDirectories) const override;
+    bool rmdir(const QString &dirName, bool recurseParentDirectories) const override;
+    bool setSize(qint64 size) override;
+    bool caseSensitive() const override;
+    bool isRelativePath() const override;
+    QStringList entryList(QDir::Filters filters, const QStringList &filterNames) const override;
+    FileFlags fileFlags(FileFlags type) const override;
+    bool setPermissions(uint perms) override;
     QByteArray id() const override;
-    QString fileName(FileName file) const Q_DECL_OVERRIDE;
-    uint ownerId(FileOwner) const Q_DECL_OVERRIDE;
-    QString owner(FileOwner) const Q_DECL_OVERRIDE;
-    bool setFileTime(const QDateTime &newDate, FileTime time) Q_DECL_OVERRIDE;
-    QDateTime fileTime(FileTime time) const Q_DECL_OVERRIDE;
-    void setFileName(const QString &file) Q_DECL_OVERRIDE;
-    int handle() const Q_DECL_OVERRIDE;
+    QString fileName(FileName file) const override;
+    uint ownerId(FileOwner) const override;
+    QString owner(FileOwner) const override;
+    bool setFileTime(const QDateTime &newDate, FileTime time) override;
+    QDateTime fileTime(FileTime time) const override;
+    void setFileName(const QString &file) override;
+    int handle() const override;
 
 #ifndef QT_NO_FILESYSTEMITERATOR
-    Iterator *beginEntryList(QDir::Filters filters, const QStringList &filterNames) Q_DECL_OVERRIDE;
-    Iterator *endEntryList() Q_DECL_OVERRIDE;
+    Iterator *beginEntryList(QDir::Filters filters, const QStringList &filterNames) override;
+    Iterator *endEntryList() override;
 #endif
 
-    qint64 read(char *data, qint64 maxlen) Q_DECL_OVERRIDE;
-    qint64 readLine(char *data, qint64 maxlen) Q_DECL_OVERRIDE;
-    qint64 write(const char *data, qint64 len) Q_DECL_OVERRIDE;
+    qint64 read(char *data, qint64 maxlen) override;
+    qint64 readLine(char *data, qint64 maxlen) override;
+    qint64 write(const char *data, qint64 len) override;
     bool cloneTo(QAbstractFileEngine *target) override;
 
-    bool extension(Extension extension, const ExtensionOption *option = 0, ExtensionReturn *output = 0) Q_DECL_OVERRIDE;
-    bool supportsExtension(Extension extension) const Q_DECL_OVERRIDE;
+    bool extension(Extension extension, const ExtensionOption *option = 0, ExtensionReturn *output = 0) override;
+    bool supportsExtension(Extension extension) const override;
 
     //FS only!!
     bool open(QIODevice::OpenMode flags, int fd);
diff --git a/src/corelib/io/qnoncontiguousbytedevice_p.h b/src/corelib/io/qnoncontiguousbytedevice_p.h
index bb0b533831..ebed1120db 100644
--- a/src/corelib/io/qnoncontiguousbytedevice_p.h
+++ b/src/corelib/io/qnoncontiguousbytedevice_p.h
@@ -105,12 +105,12 @@ class QNonContiguousByteDeviceByteArrayImpl : public QNonContiguousByteDevice
 public:
     QNonContiguousByteDeviceByteArrayImpl(QByteArray *ba);
     ~QNonContiguousByteDeviceByteArrayImpl();
-    const char* readPointer(qint64 maximumLength, qint64 &len) Q_DECL_OVERRIDE;
-    bool advanceReadPointer(qint64 amount) Q_DECL_OVERRIDE;
-    bool atEnd() const Q_DECL_OVERRIDE;
-    bool reset() Q_DECL_OVERRIDE;
-    qint64 size() const Q_DECL_OVERRIDE;
-    qint64 pos() const Q_DECL_OVERRIDE;
+    const char* readPointer(qint64 maximumLength, qint64 &len) override;
+    bool advanceReadPointer(qint64 amount) override;
+    bool atEnd() const override;
+    bool reset() override;
+    qint64 size() const override;
+    qint64 pos() const override;
 protected:
     QByteArray* byteArray;
     qint64 currentPosition;
@@ -121,12 +121,12 @@ class QNonContiguousByteDeviceRingBufferImpl : public QNonContiguousByteDevice
 public:
     QNonContiguousByteDeviceRingBufferImpl(QSharedPointer<QRingBuffer> rb);
     ~QNonContiguousByteDeviceRingBufferImpl();
-    const char* readPointer(qint64 maximumLength, qint64 &len) Q_DECL_OVERRIDE;
-    bool advanceReadPointer(qint64 amount) Q_DECL_OVERRIDE;
-    bool atEnd() const Q_DECL_OVERRIDE;
-    bool reset() Q_DECL_OVERRIDE;
-    qint64 size() const Q_DECL_OVERRIDE;
-    qint64 pos() const Q_DECL_OVERRIDE;
+    const char* readPointer(qint64 maximumLength, qint64 &len) override;
+    bool advanceReadPointer(qint64 amount) override;
+    bool atEnd() const override;
+    bool reset() override;
+    qint64 size() const override;
+    qint64 pos() const override;
 protected:
     QSharedPointer<QRingBuffer> ringBuffer;
     qint64 currentPosition;
@@ -139,12 +139,12 @@ class QNonContiguousByteDeviceIoDeviceImpl : public QNonContiguousByteDevice
 public:
     QNonContiguousByteDeviceIoDeviceImpl(QIODevice *d);
     ~QNonContiguousByteDeviceIoDeviceImpl();
-    const char* readPointer(qint64 maximumLength, qint64 &len) Q_DECL_OVERRIDE;
-    bool advanceReadPointer(qint64 amount) Q_DECL_OVERRIDE;
-    bool atEnd() const Q_DECL_OVERRIDE;
-    bool reset() Q_DECL_OVERRIDE;
-    qint64 size() const Q_DECL_OVERRIDE;
-    qint64 pos() const Q_DECL_OVERRIDE;
+    const char* readPointer(qint64 maximumLength, qint64 &len) override;
+    bool advanceReadPointer(qint64 amount) override;
+    bool atEnd() const override;
+    bool reset() override;
+    qint64 size() const override;
+    qint64 pos() const override;
 protected:
     QIODevice* device;
     QByteArray* currentReadBuffer;
@@ -162,11 +162,11 @@ class QNonContiguousByteDeviceBufferImpl : public QNonContiguousByteDevice
 public:
     QNonContiguousByteDeviceBufferImpl(QBuffer *b);
     ~QNonContiguousByteDeviceBufferImpl();
-    const char* readPointer(qint64 maximumLength, qint64 &len) Q_DECL_OVERRIDE;
-    bool advanceReadPointer(qint64 amount) Q_DECL_OVERRIDE;
-    bool atEnd() const Q_DECL_OVERRIDE;
-    bool reset() Q_DECL_OVERRIDE;
-    qint64 size() const Q_DECL_OVERRIDE;
+    const char* readPointer(qint64 maximumLength, qint64 &len) override;
+    bool advanceReadPointer(qint64 amount) override;
+    bool atEnd() const override;
+    bool reset() override;
+    qint64 size() const override;
 protected:
     QBuffer* buffer;
     QByteArray byteArray;
@@ -179,13 +179,13 @@ class QByteDeviceWrappingIoDevice : public QIODevice
 public:
     QByteDeviceWrappingIoDevice (QNonContiguousByteDevice *bd);
     ~QByteDeviceWrappingIoDevice ();
-    virtual bool isSequential () const Q_DECL_OVERRIDE;
-    virtual bool atEnd () const Q_DECL_OVERRIDE;
-    virtual bool reset () Q_DECL_OVERRIDE;
-    virtual qint64 size () const Q_DECL_OVERRIDE;
+    virtual bool isSequential () const override;
+    virtual bool atEnd () const override;
+    virtual bool reset () override;
+    virtual qint64 size () const override;
 protected:
-     virtual qint64 readData ( char * data, qint64 maxSize ) Q_DECL_OVERRIDE;
-     virtual qint64 writeData ( const char * data, qint64 maxSize ) Q_DECL_OVERRIDE;
+     virtual qint64 readData ( char * data, qint64 maxSize ) override;
+     virtual qint64 writeData ( const char * data, qint64 maxSize ) override;
 
      QNonContiguousByteDevice *byteDevice;
 };
diff --git a/src/corelib/io/qprocess.h b/src/corelib/io/qprocess.h
index c8aef2f0b1..7ce94d5ecd 100644
--- a/src/corelib/io/qprocess.h
+++ b/src/corelib/io/qprocess.h
@@ -164,7 +164,7 @@ public:
 #endif
     void start(OpenMode mode = ReadWrite);
     bool startDetached(qint64 *pid = nullptr);
-    bool open(OpenMode mode = ReadWrite) Q_DECL_OVERRIDE;
+    bool open(OpenMode mode = ReadWrite) override;
 
     QString program() const;
     void setProgram(const QString &program);
@@ -227,8 +227,8 @@ public:
     qint64 processId() const;
 
     bool waitForStarted(int msecs = 30000);
-    bool waitForReadyRead(int msecs = 30000) Q_DECL_OVERRIDE;
-    bool waitForBytesWritten(int msecs = 30000) Q_DECL_OVERRIDE;
+    bool waitForReadyRead(int msecs = 30000) override;
+    bool waitForBytesWritten(int msecs = 30000) override;
     bool waitForFinished(int msecs = 30000);
 
     QByteArray readAllStandardOutput();
@@ -238,12 +238,12 @@ public:
     QProcess::ExitStatus exitStatus() const;
 
     // QIODevice
-    qint64 bytesAvailable() const Q_DECL_OVERRIDE; // ### Qt6: remove trivial override
-    qint64 bytesToWrite() const Q_DECL_OVERRIDE;
-    bool isSequential() const Q_DECL_OVERRIDE;
-    bool canReadLine() const Q_DECL_OVERRIDE; // ### Qt6: remove trivial override
-    void close() Q_DECL_OVERRIDE;
-    bool atEnd() const Q_DECL_OVERRIDE; // ### Qt6: remove trivial override
+    qint64 bytesAvailable() const override; // ### Qt6: remove trivial override
+    qint64 bytesToWrite() const override;
+    bool isSequential() const override;
+    bool canReadLine() const override; // ### Qt6: remove trivial override
+    void close() override;
+    bool atEnd() const override; // ### Qt6: remove trivial override
 
     static int execute(const QString &program, const QStringList &arguments);
     static int execute(const QString &command);
@@ -286,8 +286,8 @@ protected:
     virtual void setupChildProcess();
 
     // QIODevice
-    qint64 readData(char *data, qint64 maxlen) Q_DECL_OVERRIDE;
-    qint64 writeData(const char *data, qint64 len) Q_DECL_OVERRIDE;
+    qint64 readData(char *data, qint64 maxlen) override;
+    qint64 writeData(const char *data, qint64 len) override;
 
 private:
     Q_DECLARE_PRIVATE(QProcess)
diff --git a/src/corelib/io/qresource.cpp b/src/corelib/io/qresource.cpp
index c1187e5145..9a63374e6f 100644
--- a/src/corelib/io/qresource.cpp
+++ b/src/corelib/io/qresource.cpp
@@ -911,8 +911,8 @@ public:
     inline QDynamicBufferResourceRoot(const QString &_root) : root(_root), buffer(0) { }
     inline ~QDynamicBufferResourceRoot() { }
     inline const uchar *mappingBuffer() const { return buffer; }
-    virtual QString mappingRoot() const Q_DECL_OVERRIDE { return root; }
-    virtual ResourceRootType type() const Q_DECL_OVERRIDE { return Resource_Buffer; }
+    virtual QString mappingRoot() const override { return root; }
+    virtual ResourceRootType type() const override { return Resource_Buffer; }
 
     // size == -1 means "unknown"
     bool registerSelf(const uchar *b, int size)
@@ -994,7 +994,7 @@ public:
         }
     }
     QString mappingFile() const { return fileName; }
-    virtual ResourceRootType type() const Q_DECL_OVERRIDE { return Resource_File; }
+    virtual ResourceRootType type() const override { return Resource_File; }
 
     bool registerSelf(const QString &f) {
         bool fromMM = false;
diff --git a/src/corelib/io/qresource_iterator_p.h b/src/corelib/io/qresource_iterator_p.h
index 6a4e215864..207a88b0ba 100644
--- a/src/corelib/io/qresource_iterator_p.h
+++ b/src/corelib/io/qresource_iterator_p.h
@@ -63,10 +63,10 @@ public:
     QResourceFileEngineIterator(QDir::Filters filters, const QStringList &filterNames);
     ~QResourceFileEngineIterator();
 
-    QString next() Q_DECL_OVERRIDE;
-    bool hasNext() const Q_DECL_OVERRIDE;
+    QString next() override;
+    bool hasNext() const override;
 
-    QString currentFileName() const Q_DECL_OVERRIDE;
+    QString currentFileName() const override;
 
 private:
     mutable QStringList entries;
diff --git a/src/corelib/io/qresource_p.h b/src/corelib/io/qresource_p.h
index e08ba64d2b..dcfe46704c 100644
--- a/src/corelib/io/qresource_p.h
+++ b/src/corelib/io/qresource_p.h
@@ -64,52 +64,52 @@ public:
     explicit QResourceFileEngine(const QString &path);
     ~QResourceFileEngine();
 
-    virtual void setFileName(const QString &file) Q_DECL_OVERRIDE;
+    virtual void setFileName(const QString &file) override;
 
-    virtual bool open(QIODevice::OpenMode flags) Q_DECL_OVERRIDE ;
-    virtual bool close() Q_DECL_OVERRIDE;
-    virtual bool flush() Q_DECL_OVERRIDE;
-    virtual qint64 size() const Q_DECL_OVERRIDE;
-    virtual qint64 pos() const Q_DECL_OVERRIDE;
+    virtual bool open(QIODevice::OpenMode flags) override ;
+    virtual bool close() override;
+    virtual bool flush() override;
+    virtual qint64 size() const override;
+    virtual qint64 pos() const override;
     virtual bool atEnd() const;
-    virtual bool seek(qint64) Q_DECL_OVERRIDE;
-    virtual qint64 read(char *data, qint64 maxlen) Q_DECL_OVERRIDE;
-    virtual qint64 write(const char *data, qint64 len) Q_DECL_OVERRIDE;
+    virtual bool seek(qint64) override;
+    virtual qint64 read(char *data, qint64 maxlen) override;
+    virtual qint64 write(const char *data, qint64 len) override;
 
-    virtual bool remove() Q_DECL_OVERRIDE;
-    virtual bool copy(const QString &newName) Q_DECL_OVERRIDE;
-    virtual bool rename(const QString &newName) Q_DECL_OVERRIDE;
-    virtual bool link(const QString &newName) Q_DECL_OVERRIDE;
+    virtual bool remove() override;
+    virtual bool copy(const QString &newName) override;
+    virtual bool rename(const QString &newName) override;
+    virtual bool link(const QString &newName) override;
 
-    virtual bool isSequential() const Q_DECL_OVERRIDE;
+    virtual bool isSequential() const override;
 
-    virtual bool isRelativePath() const Q_DECL_OVERRIDE;
+    virtual bool isRelativePath() const override;
 
-    virtual bool mkdir(const QString &dirName, bool createParentDirectories) const Q_DECL_OVERRIDE;
-    virtual bool rmdir(const QString &dirName, bool recurseParentDirectories) const Q_DECL_OVERRIDE;
+    virtual bool mkdir(const QString &dirName, bool createParentDirectories) const override;
+    virtual bool rmdir(const QString &dirName, bool recurseParentDirectories) const override;
 
-    virtual bool setSize(qint64 size) Q_DECL_OVERRIDE;
+    virtual bool setSize(qint64 size) override;
 
-    virtual QStringList entryList(QDir::Filters filters, const QStringList &filterNames) const Q_DECL_OVERRIDE;
+    virtual QStringList entryList(QDir::Filters filters, const QStringList &filterNames) const override;
 
-    virtual bool caseSensitive() const Q_DECL_OVERRIDE;
+    virtual bool caseSensitive() const override;
 
-    virtual FileFlags fileFlags(FileFlags type) const Q_DECL_OVERRIDE;
+    virtual FileFlags fileFlags(FileFlags type) const override;
 
-    virtual bool setPermissions(uint perms) Q_DECL_OVERRIDE;
+    virtual bool setPermissions(uint perms) override;
 
-    virtual QString fileName(QAbstractFileEngine::FileName file) const Q_DECL_OVERRIDE;
+    virtual QString fileName(QAbstractFileEngine::FileName file) const override;
 
-    virtual uint ownerId(FileOwner) const Q_DECL_OVERRIDE;
-    virtual QString owner(FileOwner) const Q_DECL_OVERRIDE;
+    virtual uint ownerId(FileOwner) const override;
+    virtual QString owner(FileOwner) const override;
 
-    virtual QDateTime fileTime(FileTime time) const Q_DECL_OVERRIDE;
+    virtual QDateTime fileTime(FileTime time) const override;
 
-    virtual Iterator *beginEntryList(QDir::Filters filters, const QStringList &filterNames) Q_DECL_OVERRIDE;
-    virtual Iterator *endEntryList() Q_DECL_OVERRIDE;
+    virtual Iterator *beginEntryList(QDir::Filters filters, const QStringList &filterNames) override;
+    virtual Iterator *endEntryList() override;
 
-    bool extension(Extension extension, const ExtensionOption *option = 0, ExtensionReturn *output = 0) Q_DECL_OVERRIDE;
-    bool supportsExtension(Extension extension) const Q_DECL_OVERRIDE;
+    bool extension(Extension extension, const ExtensionOption *option = 0, ExtensionReturn *output = 0) override;
+    bool supportsExtension(Extension extension) const override;
 };
 
 QT_END_NAMESPACE
diff --git a/src/corelib/io/qsavefile.h b/src/corelib/io/qsavefile.h
index 09d6e29272..8bfd14eb63 100644
--- a/src/corelib/io/qsavefile.h
+++ b/src/corelib/io/qsavefile.h
@@ -72,10 +72,10 @@ public:
 #endif
     ~QSaveFile();
 
-    QString fileName() const Q_DECL_OVERRIDE;
+    QString fileName() const override;
     void setFileName(const QString &name);
 
-    bool open(OpenMode flags) Q_DECL_OVERRIDE;
+    bool open(OpenMode flags) override;
     bool commit();
 
     void cancelWriting();
@@ -84,10 +84,10 @@ public:
     bool directWriteFallback() const;
 
 protected:
-    qint64 writeData(const char *data, qint64 len) Q_DECL_OVERRIDE;
+    qint64 writeData(const char *data, qint64 len) override;
 
 private:
-    void close() Q_DECL_OVERRIDE;
+    void close() override;
 #if !QT_CONFIG(translation)
     static QString tr(const char *string) { return QString::fromLatin1(string); }
 #endif
diff --git a/src/corelib/io/qsettings.h b/src/corelib/io/qsettings.h
index da5502e5ca..d68d4d65f9 100644
--- a/src/corelib/io/qsettings.h
+++ b/src/corelib/io/qsettings.h
@@ -199,7 +199,7 @@ public:
 
 protected:
 #ifndef QT_NO_QOBJECT
-    bool event(QEvent *event) Q_DECL_OVERRIDE;
+    bool event(QEvent *event) override;
 #endif
 
 private:
diff --git a/src/corelib/io/qsettings_p.h b/src/corelib/io/qsettings_p.h
index 7923c24770..d18c96a06c 100644
--- a/src/corelib/io/qsettings_p.h
+++ b/src/corelib/io/qsettings_p.h
@@ -261,17 +261,17 @@ public:
     QConfFileSettingsPrivate(const QString &fileName, QSettings::Format format);
     ~QConfFileSettingsPrivate();
 
-    void remove(const QString &key) Q_DECL_OVERRIDE;
-    void set(const QString &key, const QVariant &value) Q_DECL_OVERRIDE;
-    bool get(const QString &key, QVariant *value) const Q_DECL_OVERRIDE;
+    void remove(const QString &key) override;
+    void set(const QString &key, const QVariant &value) override;
+    bool get(const QString &key, QVariant *value) const override;
 
-    QStringList children(const QString &prefix, ChildSpec spec) const Q_DECL_OVERRIDE;
+    QStringList children(const QString &prefix, ChildSpec spec) const override;
 
-    void clear() Q_DECL_OVERRIDE;
-    void sync() Q_DECL_OVERRIDE;
-    void flush() Q_DECL_OVERRIDE;
-    bool isWritable() const Q_DECL_OVERRIDE;
-    QString fileName() const Q_DECL_OVERRIDE;
+    void clear() override;
+    void sync() override;
+    void flush() override;
+    bool isWritable() const override;
+    QString fileName() const override;
 
     bool readIniFile(const QByteArray &data, UnparsedSettingsMap *unparsedIniSections);
     static bool readIniSection(const QSettingsKey &section, const QByteArray &data,
diff --git a/src/corelib/io/qtemporaryfile.h b/src/corelib/io/qtemporaryfile.h
index 7fc5a299fc..90a6a613e6 100644
--- a/src/corelib/io/qtemporaryfile.h
+++ b/src/corelib/io/qtemporaryfile.h
@@ -77,7 +77,7 @@ public:
     // ### Hides open(flags)
     bool open() { return open(QIODevice::ReadWrite); }
 
-    QString fileName() const Q_DECL_OVERRIDE;
+    QString fileName() const override;
     QString fileTemplate() const;
     void setFileTemplate(const QString &name);
 
@@ -95,7 +95,7 @@ public:
     static QTemporaryFile *createNativeFile(QFile &file);
 
 protected:
-    bool open(OpenMode flags) Q_DECL_OVERRIDE;
+    bool open(OpenMode flags) override;
 
 private:
     friend class QFile;