cppbind: small logging/warning updates.

simgear/nasal/cppbind/Ghost.hxx

@@ -737,6 +737,17 @@ namespace nasal
             && dynamic_cast<const typename Ghost::raw_type*>(base) != base )
           return 0;
 
+        if( !getSingletonPtr() )
+        {
+          SG_LOG
+          (
+            SG_NASAL,
+            SG_INFO,
+            "Ghost::getTypeFor: can not get type for unregistered ghost"
+          );
+          return 0;
+        }
+
         // Now check if we can further downcast to one of our derived classes.
         for( typename DerivedList::reverse_iterator
                derived = getSingletonPtr()->_derived_types.rbegin();

simgear/nasal/cppbind/detail/to_nasal_helper.hxx

@@ -144,7 +144,10 @@ namespace nasal
   {
     // We take just double because in Nasal every number is represented as
     // double
-    double nasal_vec[2] = {vec[0], vec[1]};
+    double nasal_vec[2] = {
+      static_cast<double>(vec[0]),
+      static_cast<double>(vec[1])
+    };
     return to_nasal_helper(c, nasal_vec);
   }