return type and parameter type of nops() and op()/let_op() (respectively) is

[ginac.git] / ginac / relational.h

diff --git a/ginac/relational.h b/ginac/relational.h
index a1e6b8c278e37db2bbdf948013db7ce9b864345f..c8044f581bdd9728a17e4aec4e83671cf6670aa8 100644 (file)
--- a/ginac/relational.h
+++ b/ginac/relational.h
@@ -3,7 +3,7 @@
  *  Interface to relations between expressions. */
 
 /*
- *  GiNaC Copyright (C) 1999-2002 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
@@ -54,8 +54,9 @@ public:
        void print(const print_context & c, unsigned level = 0) const;
        unsigned precedence(void) const {return 20;}
        bool info(unsigned inf) const;
-       unsigned nops() const;
-       ex & let_op(int i);
+       size_t nops() const;
+       ex op(size_t i) const;
+       ex map(map_function & f) const;
        ex eval(int level=0) const;
 
 protected: