match: don't modify subexpression list if expression doesn't match the pattern.

[ginac.git] / ginac / ncmul.h

diff --git a/ginac/ncmul.h b/ginac/ncmul.h
index cc156d54a480af65b0816bcd0825052ede4ce287..7b21cf8bcf2c3975384fe2423b2b9c779164138a 100644 (file)
--- a/ginac/ncmul.h
+++ b/ginac/ncmul.h
@@ -3,7 +3,7 @@
  *  Interface to GiNaC's non-commutative products of expressions. */
 
 /*
- *  GiNaC Copyright (C) 1999-2006 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2008 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
@@ -65,6 +65,8 @@ public:
        ex thiscontainer(const exvector & v) const;
        ex thiscontainer(std::auto_ptr<exvector> vp) const;
        ex conjugate() const;
+       ex real_part() const;
+       ex imag_part() const;
 
 protected:
        ex derivative(const symbol & s) const;