X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/b5dbe15d0bacde245539f54c4d97af6b4696f01f..dd9f8b6bb6935360a8271dc3e8749fb026b601a8:/include/wx/object.h?ds=sidebyside

diff --git a/include/wx/object.h b/include/wx/object.h
index e24fc89e1c..88297d21b8 100644
--- a/include/wx/object.h
+++ b/include/wx/object.h
@@ -456,7 +456,26 @@ public:
     }
 
     T *get() const { return m_ptr; }
-    T *operator->() const { return get(); }
+    
+    // test for pointer validity: defining conversion to unspecified_bool_type
+    // and not more obvious bool to avoid implicit conversions to integer types
+    typedef T *(wxObjectDataPtr<T>::*unspecified_bool_type)() const;
+    operator unspecified_bool_type() const
+    {
+        return m_ptr ? &wxObjectDataPtr<T>::get : NULL;
+    }
+
+    T& operator*() const
+    { 
+        wxASSERT(m_ptr != NULL);    
+        return *(m_ptr);
+    }
+    
+    T *operator->() const
+    { 
+        wxASSERT(m_ptr != NULL);    
+        return get(); 
+    }
 
     void reset(T *ptr)
     {
@@ -480,8 +499,6 @@ public:
         if (m_ptr) 
             m_ptr->DecRef(); 
         m_ptr = ptr; 
-        if (m_ptr)
-            m_ptr->IncRef(); 
         return *this;
     }