Repack structs with more than one padding hole

Sizes gained (measured on 64-bit systems)
BezierEase: shrunk 8 bytes
QRegExpCharClass: shrunk 8 bytes
QRegularExpressionPrivate: shrunk 8 bytes
QTimeLinePrivate: shrunk 8 bytes
QUtcTimeZonePrivate: shrunk 8 bytes
QTextStreamPrivate: shrunk 8 bytes
QDirPrivate: shrunk 8 bytes
QFileDevicePrivate: shrunk 8 bytes

Not done:
QRegExpEngine: 18 bytes in 6 holes (you deserve high memory usage if
you're still using QRegExp)
QTextBoundaryFinder: 8 bytes in 2 holes (public class)
QIODevicePrivate: 6 bytes in 2 holes, but there's no gain in packing
QProcessPrivate: too complex and my copy is modified
QThreadData: awaiting change from Marc

Change-Id: I2a388b5ce17dec0dafcef18ed2e80d0379aa7d1e
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

1 files changed, 7 insertions, 6 deletions

diff --git a/src/corelib/io/qfiledevice_p.h b/src/corelib/io/qfiledevice_p.h
index 4c9cf7b627..79d8427c0d 100644
--- a/src/corelib/io/qfiledevice_p.h
+++ b/src/corelib/io/qfiledevice_p.h
@@ -70,21 +70,22 @@ protected:
 
     virtual QAbstractFileEngine *engine() const;
 
-    QFileDevice::FileHandleFlags handleFlags;
-
-    mutable QAbstractFileEngine *fileEngine;
-    bool lastWasWrite;
-    QRingBuffer writeBuffer;
     inline bool ensureFlushed() const;
 
     bool putCharHelper(char c);
 
-    QFileDevice::FileError error;
     void setError(QFileDevice::FileError err);
     void setError(QFileDevice::FileError err, const QString &errorString);
     void setError(QFileDevice::FileError err, int errNum);
 
+    mutable QAbstractFileEngine *fileEngine;
+    QRingBuffer writeBuffer;
     mutable qint64 cachedSize;
+
+    QFileDevice::FileHandleFlags handleFlags;
+    QFileDevice::FileError error;
+
+    bool lastWasWrite;
 };
 
 inline bool QFileDevicePrivate::ensureFlushed() const