X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?a=blobdiff_plain;f=check%2Fexam_indexed.cpp;h=e8560b54b5dd4214edd7c0613be7885d8c58f208;hb=606c7c82026ad4323076fc89c5b2ecb2f0457536;hp=3d9b307db4f26fdcc33f8a6d245bb97fa41a973c;hpb=6d225ee55693c0617d254e6fa283c00c71bd2919;p=ginac.git

diff --git a/check/exam_indexed.cpp b/check/exam_indexed.cpp
index 3d9b307d..e8560b54 100644
--- 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) 1999-2004 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2005 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;
 }