Fix some apparent typos and misindentations.

[ginac.git] / check / exam_clifford.cpp

diff --git a/check/exam_clifford.cpp b/check/exam_clifford.cpp
index 5b646bf51df4fdd3009cb6774a2dc57781e80a06..420089fdca678442e22877c42963f910eae3c7b3 100644 (file)
--- a/check/exam_clifford.cpp
+++ b/check/exam_clifford.cpp
@@ -3,7 +3,7 @@
  *  Here we test GiNaC's Clifford algebra objects. */
 
 /*
- *  GiNaC Copyright (C) 1999-2010 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2015 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
@@ -247,7 +247,7 @@ static unsigned clifford_check3()
        e = dirac_gamma(mu, 0) * dirac_gamma(mu.toggle_variance(), 1) * dirac_gamma(nu, 0) * dirac_gamma(nu.toggle_variance(), 1);
        result += check_equal_simplify(dirac_trace(e, 0), 4 * dim * dirac_ONE(1));
        result += check_equal_simplify(dirac_trace(e, 1), 4 * dim * dirac_ONE(0));
-       // Fails with new tinfo mechanism because the order of gamme matrices with different rl depends on luck. 
+       // Fails with new tinfo mechanism because the order of gamma matrices with different rl depends on luck.
        // TODO: better check.
        //result += check_equal_simplify(dirac_trace(e, 2), canonicalize_clifford(e)); // e will be canonicalized by the calculation of the trace
        result += check_equal_simplify(dirac_trace(e, lst(0, 1)), 16 * dim);
@@ -504,7 +504,8 @@ static unsigned clifford_check7(const ex & G, const symbol & dim)
        result += check_equal(e, pow(scalar*(dim-2), 2).expand() * clifford_unit(mu, G));
 
        // canonicalize_clifford() checks, only for symmetric metrics
-       if (ex_to<symmetry>(ex_to<indexed>(ex_to<clifford>(clifford_unit(mu, G)).get_metric()).get_symmetry()).has_symmetry()) {
+       if (is_a<indexed>(ex_to<clifford>(clifford_unit(mu, G)).get_metric()) &&
+           ex_to<symmetry>(ex_to<indexed>(ex_to<clifford>(clifford_unit(mu, G)).get_metric()).get_symmetry()).has_symmetry()) {
                e = clifford_unit(mu, G) * clifford_unit(nu, G) + clifford_unit(nu, G) * clifford_unit(mu, G);
                result += check_equal(canonicalize_clifford(e), 2*dirac_ONE()*unit.get_metric(nu, mu));
                
@@ -575,34 +576,34 @@ unsigned exam_clifford()
        result += clifford_check6<varidx>(ex_to<matrix>(diag_matrix(lst(-1, 1, s, t))))+clifford_check6<idx>(ex_to<matrix>(diag_matrix(lst(-1, 1, s, t))));; cout << '.' << flush;
 
        matrix A(4, 4);
-       A = 1, 0, 0, 0, // anticommuting, not symmetric, Tr=0
-               0, -1, 0, 0,
-               0, 0, 0, -1,
-               0, 0, 1, 0; 
+       A = 1,  0,  0,  0, // anticommuting, not symmetric, Tr=0
+           0, -1,  0,  0,
+           0,  0,  0, -1,
+           0,  0,  1,  0;
        result += clifford_check6<varidx>(A)+clifford_check6<idx>(A);; cout << '.' << flush;
 
-       A = 1, 0, 0, 0, // anticommuting, not symmetric, Tr=2
-               0, 1, 0, 0,
-               0, 0, 0, -1,
-               0, 0, 1, 0; 
+       A = 1,  0,  0,  0, // anticommuting, not symmetric, Tr=2
+           0,  1,  0,  0,
+           0,  0,  0, -1,
+           0,  0,  1,  0;
        result += clifford_check6<varidx>(A)+clifford_check6<idx>(A);; cout << '.' << flush;
 
-       A = 1, 0, 0, 0, // not anticommuting, symmetric, Tr=0
-               0, -1, 0, 0,
-               0, 0, 0, -1,
-               0, 0, -1, 0; 
+       A = 1,  0,  0,  0, // not anticommuting, symmetric, Tr=0
+           0, -1,  0,  0,
+           0,  0,  0, -1,
+           0,  0, -1,  0;
        result += clifford_check6<varidx>(A)+clifford_check6<idx>(A);; cout << '.' << flush;
 
-       A = 1, 0, 0, 0, // not anticommuting, symmetric, Tr=2
-               0, 1, 0, 0,
-               0, 0, 0, -1,
-               0, 0, -1, 0; 
+       A = 1,  0,  0,  0, // not anticommuting, symmetric, Tr=2
+           0,  1,  0,  0,
+           0,  0,  0, -1,
+           0,  0, -1,  0;
        result += clifford_check6<varidx>(A)+clifford_check6<idx>(A);; cout << '.' << flush;
 
-       A = 1, 1, 0, 0, // not anticommuting, not symmetric, Tr=4
-               0, 1, 1, 0,
-               0, 0, 1, 1,
-               0, 0, 0, 1; 
+       A = 1,  1,  0,  0, // not anticommuting, not symmetric, Tr=4
+           0,  1,  1,  0,
+           0,  0,  1,  1,
+           0,  0,  0,  1;
        result += clifford_check6<varidx>(A)+clifford_check6<idx>(A);; cout << '.' << flush;
 
        symbol dim("D");