X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/89969a91289c3c99b6d55c2ac918ddb8a3f0f0bc..fc32630a5e03e60a67d4ef53fc59985ea087b451:/include/wx/ptr_scpd.h?ds=sidebyside

diff --git a/include/wx/ptr_scpd.h b/include/wx/ptr_scpd.h
index 100e6bdd0a..2ae40220c9 100644
--- a/include/wx/ptr_scpd.h
+++ b/include/wx/ptr_scpd.h
@@ -55,6 +55,14 @@ public:
            delete m_ptr;
     }
                                     
+    // test for pointer validity: defining conversion to unspecified_bool_type
+    // and not more obvious bool to avoid implicit conversions to integer types
+    typedef T *(wxScopedPtr<T>::*unspecified_bool_type)() const;
+    operator unspecified_bool_type() const
+    {
+        return m_ptr ? &wxScopedPtr<T>::get : NULL;
+    }
+
     void reset(T * ptr = NULL)      
     {                               
         if (m_ptr != ptr)