From: Christian Bauer <Christian.Bauer@uni-mainz.de>
Date: Mon, 2 Aug 2004 21:40:04 +0000 (+0000)
Subject: added check for power::get_free_indices()
X-Git-Tag: release_1-3-0~43
X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=commitdiff_plain;h=ff96974562b86f5c04f82ecd91b2cdb97f6bd990;ds=sidebyside

added check for power::get_free_indices()
---

diff --git a/check/exam_indexed.cpp b/check/exam_indexed.cpp
index 3d9b307d..e20b5643 100644
--- a/check/exam_indexed.cpp
+++ b/check/exam_indexed.cpp
@@ -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;
 }