X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=blobdiff_plain;f=check%2Fexam_indexed.cpp;h=9deb4870e6bbf492971f32856ca2cee240005074;hp=a8c7cbd698f6da73a6673bb32e60cdfd44c387c9;hb=8247d44aac20d266d1b135468dacf521ea655f20;hpb=9f015041142625abf6645b3ea39c62b59a5f442c

diff --git a/check/exam_indexed.cpp b/check/exam_indexed.cpp
index a8c7cbd6..9deb4870 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) 1999-2002 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2003 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
@@ -55,7 +55,7 @@ static unsigned check_equal_simplify(const ex &e1, const ex &e2, const scalar_pr
 	return 0;
 }
 
-static unsigned delta_check(void)
+static unsigned delta_check()
 {
 	// checks identities of the delta tensor
 
@@ -81,7 +81,7 @@ static unsigned delta_check(void)
 	return result;
 }
 
-static unsigned metric_check(void)
+static unsigned metric_check()
 {
 	// checks identities of the metric tensor
 
@@ -114,7 +114,7 @@ static unsigned metric_check(void)
 	return result;
 }
 
-static unsigned epsilon_check(void)
+static unsigned epsilon_check()
 {
 	// checks identities of the epsilon tensor
 
@@ -148,14 +148,19 @@ static unsigned epsilon_check(void)
 	return result;
 }
 
-static unsigned symmetry_check(void)
+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()
 {
 	// check symmetric/antisymmetric objects
 
 	unsigned result = 0;
 
 	idx i(symbol("i"), 3), j(symbol("j"), 3), k(symbol("k"), 3), l(symbol("l"), 3);
-	symbol A("A"), B("B");
+	symbol A("A"), B("B"), C("C");
 	ex e;
 
 	result += check_equal(indexed(A, sy_symm(), i, j), indexed(A, sy_symm(), j, i));
@@ -187,10 +192,17 @@ static unsigned symmetry_check(void)
 	result += check_equal(symmetrize(e), 0);
 	result += check_equal(antisymmetrize(e), e);
 
+	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;
 }
 
-static unsigned scalar_product_check(void)
+static unsigned scalar_product_check()
 {
 	// check scalar product replacement
 
@@ -213,7 +225,7 @@ static unsigned scalar_product_check(void)
 	return result;
 }
 
-static unsigned edyn_check(void)
+static unsigned edyn_check()
 {
 	// Relativistic electrodynamics
 
@@ -229,19 +241,17 @@ static unsigned edyn_check(void)
 
 	// Lorentz transformation matrix (boost along x axis)
 	matrix L(4, 4);
-	L(0, 0) = gamma;
-	L(0, 1) = -beta*gamma;
-	L(1, 0) = -beta*gamma;
-	L(1, 1) = gamma;
-	L(2, 2) = 1; L(3, 3) = 1;
+	L =       gamma, -beta*gamma, 0, 0,
+	    -beta*gamma,       gamma, 0, 0,
+	              0,           0, 1, 0,
+	              0,           0, 0, 1;
 
 	// Electromagnetic field tensor
-	matrix F(4, 4, lst(
-		 0, -Ex, -Ey, -Ez,
+	matrix F(4, 4);
+	F =  0, -Ex, -Ey, -Ez,
 		Ex,   0, -Bz,  By,
 		Ey,  Bz,   0, -Bx,
-		Ez, -By,  Bx,   0
-	));
+		Ez, -By,  Bx,   0;
 
 	// Indices
 	symbol s_mu("mu"), s_nu("nu"), s_rho("rho"), s_sigma("sigma");
@@ -300,7 +310,7 @@ static unsigned edyn_check(void)
 	return result;
 }
 
-static unsigned spinor_check(void)
+static unsigned spinor_check()
 {
 	// check identities of the spinor metric
 
@@ -335,7 +345,7 @@ static unsigned spinor_check(void)
 	return result;
 }
 
-static unsigned dummy_check(void)
+static unsigned dummy_check()
 {
 	// check dummy index renaming/repositioning
 
@@ -368,7 +378,7 @@ static unsigned dummy_check(void)
 	return result;
 }
 
-unsigned exam_indexed(void)
+unsigned exam_indexed()
 {
 	unsigned result = 0;