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[ginac.git] / ginac / fderivative.h

diff --git a/ginac/fderivative.h b/ginac/fderivative.h
index ee3405db0cea5282f801340d1dac0b35cc5055cc..a9d416a2e658566a6d99f3aabd40cdd7f8c2d23c 100644 (file)
--- a/ginac/fderivative.h
+++ b/ginac/fderivative.h
@@ -3,7 +3,7 @@
  *  Interface to abstract derivatives of functions. */
 
 /*
- *  GiNaC Copyright (C) 1999-2003 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2004 Johannes Gutenberg University Mainz, Germany
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -60,6 +60,7 @@ public:
 
        // functions overriding virtual functions from base classes
 public:
+       void print(const print_context & c, unsigned level = 0) const;
        ex eval(int level = 0) const;
        ex evalf(int level = 0) const;
        ex series(const relational & r, int order, unsigned options = 0) const;