Added complex conjugation methods and GiNaC function "conjugate".

[ginac.git] / ginac / expair.cpp

diff --git a/ginac/expair.cpp b/ginac/expair.cpp
index 9d8375d85a94d2faa38773b22f73b7e37b622fa9..6070ffb51b6da964a05594132a7286cbedfbc94a 100644 (file)
--- a/ginac/expair.cpp
+++ b/ginac/expair.cpp
@@ -3,7 +3,7 @@
  *  Implementation of expression pairs (building blocks of expairseq). */
 
 /*
- *  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
@@ -23,6 +23,7 @@
 #include <iostream>
 
 #include "expair.h"
+#include "operators.h"
 
 namespace GiNaC {
 
@@ -34,4 +35,14 @@ void expair::print(std::ostream & os) const
        coeff.print(c, c.delta_indent);
 }
 
+const expair expair::conjugate() const
+{
+       ex newrest = rest.conjugate();
+       ex newcoeff = coeff.conjugate();
+       if (are_ex_trivially_equal(newrest,rest) && are_ex_trivially_equal(newcoeff,coeff)) {
+               return *this;
+       }
+       return expair(newrest, newcoeff);
+}
+
 } // namespace GiNaC