* Version 1.5.

[ginac.git] / check / exam_indexed.cpp

diff --git a/check/exam_indexed.cpp b/check/exam_indexed.cpp
index 9deb4870e6bbf492971f32856ca2cee240005074..06bdbaa4c7f1c25163bf9153fb982728e4a6c053 100644 (file)
--- a/check/exam_indexed.cpp
+++ b/check/exam_indexed.cpp
@@ -3,7 +3,7 @@
  *  Here we test manipulations on GiNaC's indexed objects. */
 
 /*
- *  GiNaC Copyright (C) 1999-2003 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2007 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
@@ -17,7 +17,7 @@
  *
  *  You should have received a copy of the GNU General Public License
  *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  */
 
 #include "exams.h"
@@ -375,6 +375,15 @@ static unsigned dummy_check()
        e = indexed(p, mu.toggle_variance(), mu) - indexed(p, nu, nu.toggle_variance());
        result += check_equal_simplify(e, 0);
 
+       // GiNaC 1.2.1 had a bug here because p.i*p.i -> (p.i)^2
+       e = indexed(p, i) * indexed(p, i) * indexed(p, j) + indexed(p, j);
+       ex fi = exprseq(e.get_free_indices());
+       if (!fi.is_equal(exprseq(j))) {
+               clog << "get_free_indices(" << e << ") erroneously returned "
+                    << fi << " instead of (.j)" << endl;
+               ++result;
+       }
+
        return result;
 }