QtGui: Pass types with copy-ctor or dtor by const-ref

... except if the function is a ctor, callers pass rvalues,
and the type has a fast move ctor. In that case, keep passing
by-value and qMove() into place.

Change-Id: I2c0be7d4436327834ddee0531c51c5af352ac74c
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/gui/itemmodels/qstandarditemmodel_p.h b/src/gui/itemmodels/qstandarditemmodel_p.h
index 491a49f9c2..b49045d283 100644
--- a/src/gui/itemmodels/qstandarditemmodel_p.h
+++ b/src/gui/itemmodels/qstandarditemmodel_p.h
@@ -61,7 +61,7 @@ class QStandardItemData
 {
 public:
     inline QStandardItemData() : role(-1) {}
-    inline QStandardItemData(int r, QVariant v) : role(r), value(v) {}
+    inline QStandardItemData(int r, const QVariant &v) : role(r), value(v) {}
     int role;
     QVariant value;
     inline bool operator==(const QStandardItemData &other) const { return role == other.role && value == other.value; }