From: Christian Bauer <Christian.Bauer@uni-mainz.de>
Date: Wed, 24 Jul 2002 20:20:08 +0000 (+0000)
Subject: synced to 1.0
X-Git-Tag: release_1-1-0~83
X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?a=commitdiff_plain;h=9f6cbe2eb7f91d43b1ceed5e6e8c0dacbaa3bda9;p=ginac.git

synced to 1.0
---

diff --git a/check/exam_indexed.cpp b/check/exam_indexed.cpp
index 4d09bdff..23362a83 100644
--- a/check/exam_indexed.cpp
+++ b/check/exam_indexed.cpp
@@ -148,6 +148,11 @@ static unsigned epsilon_check(void)
 	return result;
 }
 
+DECLARE_FUNCTION_2P(symm_fcn)
+REGISTER_FUNCTION(symm_fcn, set_symmetry(sy_symm(0, 1)));
+DECLARE_FUNCTION_2P(anti_fcn)
+REGISTER_FUNCTION(anti_fcn, set_symmetry(sy_anti(0, 1)));
+
 static unsigned symmetry_check(void)
 {
 	// check symmetric/antisymmetric objects
@@ -190,6 +195,10 @@ static unsigned symmetry_check(void)
 	e = (indexed(A, sy_anti(), i, j, k, l) * (indexed(B, j) * indexed(C, k) + indexed(B, k) * indexed(C, j)) + indexed(B, i, l)).expand();
 	result += check_equal_simplify(e, indexed(B, i, l));
 
+	result += check_equal(symm_fcn(0, 1) + symm_fcn(1, 0), 2*symm_fcn(0, 1));
+	result += check_equal(anti_fcn(0, 1) + anti_fcn(1, 0), 0);
+	result += check_equal(anti_fcn(0, 0), 0);
+
 	return result;
 }