updated the section about lists

[ginac.git] / ginac / relational.h

diff --git a/ginac/relational.h b/ginac/relational.h
index fb1111580a4afb085a12ea9017aedfc98345e18e..9f58e0c7125e0a2aae73e50e4822d014181eddd3 100644 (file)
--- a/ginac/relational.h
+++ b/ginac/relational.h
@@ -3,7 +3,7 @@
  *  Interface to relations between expressions. */
 
 /*
- *  GiNaC Copyright (C) 1999-2001 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2003 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
@@ -57,12 +57,14 @@ public:
        unsigned nops() const;
        ex & let_op(int i);
        ex eval(int level=0) const;
+       ex subs(const lst & ls, const lst & lr, bool no_pattern = false) const;
        ex simplify_ncmul(const exvector & v) const;
 
 protected:
        bool match_same_type(const basic & other) const;
        unsigned return_type(void) const;
        unsigned return_type_tinfo(void) const;
+       unsigned calchash(void) const;
 
        // new virtual functions which can be overridden by derived classes
 public: