--- a/libinterp/interpfcn/symtab.cc	Tue Jan 29 17:55:53 2013 +0100
+++ b/libinterp/interpfcn/symtab.cc	Wed Feb 20 11:36:13 2013 -0500
@@ -1016,8 +1016,8 @@
   if (is_superiorto (inf_class, sup_class))
     return false;
 
-  // If sup_class doesn't have an entry in the precedence table, 
-  // this will automatically create it, and associate to it a 
+  // If sup_class doesn't have an entry in the precedence table,
+  // this will automatically create it, and associate to it a
   // singleton set {inf_class} of inferior classes.
   class_precedence_table[sup_class].insert (inf_class);
 
@@ -1040,7 +1040,7 @@
 bool
 symbol_table::is_superiorto (const std::string& a, const std::string& b)
 {
-  class_precedence_table_const_iterator p = class_precedence_table.find (a);  
+  class_precedence_table_const_iterator p = class_precedence_table.find (a);
   // If a has no entry in the precedence table, return false
   if (p == class_precedence_table.end ())
     return false;
@@ -1466,7 +1466,7 @@
             {
               if (ours.is_global () || ours.is_persistent ())
                 ::error ("global and persistent may only be used in the topmost level in which a nested variable is used");
-                
+
               if (! ours.is_formal ())
                 {
                   ours.invalidate ();

--- a/libinterp/octave-value/ov-class.cc	Tue Jan 29 17:55:53 2013 +0100
+++ b/libinterp/octave-value/ov-class.cc	Wed Feb 20 11:36:13 2013 -0500
@@ -2196,7 +2196,7 @@
       error ("superiorto: invalid call from outside class constructor");
       return retval;
     }
-  
+
   for (int i = 0; i < args.length (); i++)
     {
       std::string inf_class = args(i).string_value ();
@@ -2206,7 +2206,7 @@
               break;
         }
 
-      // User defined classes always have higher precedence 
+      // User defined classes always have higher precedence
       // than built-in classes
       if (is_built_in_class (inf_class))
         break;
@@ -2218,8 +2218,8 @@
                  sup_class.c_str (), inf_class.c_str ());
           break;
         }
-    }   
-  
+    }
+
   return retval;
 }
 
@@ -2233,30 +2233,30 @@
 @end deftypefn")
 {
   octave_value retval;
-  
+
   octave_function *fcn = octave_call_stack::caller ();
   if ((! fcn) || (! fcn->is_class_constructor ()))
     {
       error ("inferiorto: invalid call from outside class constructor");
       return retval;
     }
-  
+
   for (int i = 0; i < args.length (); i++)
     {
-      std::string sup_class = args(i).string_value ();      
+      std::string sup_class = args(i).string_value ();
       if (error_state)
         {
           error ("inferiorto: expecting argument to be class name");
           break;
         }
-      
+
       if (is_built_in_class (sup_class))
         {
           error ("inferiorto: cannot give user-defined class lower "
                  "precedence than built-in class");
           break;
         }
-      
+
       std::string inf_class = fcn->name ();
       if (! symbol_table::set_class_relationship (sup_class, inf_class))
         {