3 files changed, 17 insertions, 1 deletions
diff --git a/src/corelib/kernel/qmetatype.cpp b/src/corelib/kernel/qmetatype.cpp
index 8f2d025..30af6fa 100644
--- a/src/corelib/kernel/qmetatype.cpp
+++ b/src/corelib/kernel/qmetatype.cpp
@@ -590,6 +590,8 @@ bool QMetaType::isRegistered(int type)
 int QMetaType::type(const char *typeName)
 {
     int length = qstrlen(typeName);
+    if (!length)
+        return 0;
     int type = qMetaTypeStaticType(typeName, length);
     if (!type) {
         QReadLocker locker(customTypesLock());
diff --git a/src/corelib/kernel/qtimer.cpp b/src/corelib/kernel/qtimer.cpp
index e17c995..7650f6a 100644
--- a/src/corelib/kernel/qtimer.cpp
+++ b/src/corelib/kernel/qtimer.cpp
@@ -339,8 +339,20 @@ QT_END_INCLUDE_NAMESPACE
 
 void QTimer::singleShot(int msec, QObject *receiver, const char *member)
 {
-    if (receiver && member)
+    if (receiver && member) {
+        if (msec == 0) {
+            // special code shortpath for 0-timers
+            const char* bracketPosition = strchr(member, '(');
+            if (!bracketPosition || !(member[0] >= '0' && member[0] <= '3')) {
+                qWarning("QTimer::singleShot: Invalid slot specification");
+                return;
+            }
+            QByteArray methodName(member+1, bracketPosition - 1 - member); // extract method name
+            QMetaObject::invokeMethod(receiver, methodName.constData(), Qt::QueuedConnection);
+            return;
+        }
         (void) new QSingleShotTimer(msec, receiver, member);
+    }
 }
 
 /*!
diff --git a/src/corelib/kernel/qvariant.cpp b/src/corelib/kernel/qvariant.cpp
index 07c9e53..f5d7c0d 100644
--- a/src/corelib/kernel/qvariant.cpp
+++ b/src/corelib/kernel/qvariant.cpp
@@ -1511,6 +1511,7 @@ QVariant::QVariant(const char *val)
 */
 
 /*!
+    \since 4.7
   \fn QVariant::QVariant(const QEasingCurve &val)
 
     Constructs a new variant with an easing curve value, \a val.
@@ -2204,6 +2205,7 @@ QDateTime QVariant::toDateTime() const
 }
 
 /*!
+    \since 4.7
     \fn QEasingCurve QVariant::toEasingCurve() const
 
     Returns the variant as a QEasingCurve if the variant has type() \l