Glib::RefPtr: Move assignment operator: Unref the previous object.

1 files changed, 9 insertions, 0 deletions

diff --git a/glib/glibmm/refptr.h b/glib/glibmm/refptr.h
index fd57b361..1aca555f 100644
--- a/glib/glibmm/refptr.h
+++ b/glib/glibmm/refptr.h
@@ -298,8 +298,17 @@ RefPtr<T_CppObject>& RefPtr<T_CppObject>::operator=(const RefPtr& src)
 template <class T_CppObject> inline
 RefPtr<T_CppObject>& RefPtr<T_CppObject>::operator=(RefPtr&& src)
 {
+  if (pCppObject_)
+    pCppObject_->unreference();
+
   pCppObject_ = src.pCppObject_;
   src.pCppObject_ = nullptr;
+
+  //This should work instead, but seems less efficient:
+  //RefPtr<T_CppObject> temp (src);
+  //this->swap(temp);
+  //src.pCppObject_ = nullptr;
+
   return *this;
 }