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diff src/ov-fcn.h @ 2976:641689f67673

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[project @ 1997-05-15 20:27:04 by jwe]
author jwe
date Thu, 15 May 1997 20:27:05 +0000
parents ebbc34ff7f66
children c3409a0cafa8
line wrap: on
line diff
--- a/src/ov-fcn.h
+++ b/src/ov-fcn.h
@@ -35,6 +35,8 @@
 #include "ov-base.h"
 #include "ov-typeinfo.h"
 
+class tree_walker;
+
 // Functions.
 
 class
@@ -71,6 +73,8 @@
 
   string doc_string (void) const { return doc; }
 
+  virtual void accept (tree_walker&) { }
+
 protected:
 
   octave_function (const string& nm, const string& ds)