G_numeric: put convergence/acceleration transofrmations into helper functions.

[ginac.git] / check / exam_indexed.cpp

diff --git a/check/exam_indexed.cpp b/check/exam_indexed.cpp
index 82a2539f9df6a86423a617495c68644a69fdd378..b7c12ba2ad2a52d11ac4d613caf3343f83ff5d91 100644 (file)
--- 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) 1999-2003 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2008 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
@@ -17,10 +17,13 @@
  *
  *  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"
+#include <iostream>
+#include "ginac.h"
+using namespace std;
+using namespace GiNaC;
 
 static unsigned check_equal(const ex &e1, const ex &e2)
 {
@@ -55,7 +58,7 @@ 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 +84,7 @@ static unsigned delta_check(void)
        return result;
 }
 
-static unsigned metric_check(void)
+static unsigned metric_check()
 {
        // checks identities of the metric tensor
 
@@ -114,7 +117,7 @@ static unsigned metric_check(void)
        return result;
 }
 
-static unsigned epsilon_check(void)
+static unsigned epsilon_check()
 {
        // checks identities of the epsilon tensor
 
@@ -153,7 +156,7 @@ 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)
+static unsigned symmetry_check()
 {
        // check symmetric/antisymmetric objects
 
@@ -202,7 +205,7 @@ static unsigned symmetry_check(void)
        return result;
 }
 
-static unsigned scalar_product_check(void)
+static unsigned scalar_product_check()
 {
        // check scalar product replacement
 
@@ -225,7 +228,7 @@ static unsigned scalar_product_check(void)
        return result;
 }
 
-static unsigned edyn_check(void)
+static unsigned edyn_check()
 {
        // Relativistic electrodynamics
 
@@ -241,19 +244,17 @@ 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");
@@ -312,7 +313,7 @@ static unsigned edyn_check(void)
        return result;
 }
 
-static unsigned spinor_check(void)
+static unsigned spinor_check()
 {
        // check identities of the spinor metric
 
@@ -347,7 +348,7 @@ static unsigned spinor_check(void)
        return result;
 }
 
-static unsigned dummy_check(void)
+static unsigned dummy_check()
 {
        // check dummy index renaming/repositioning
 
@@ -377,15 +378,23 @@ static unsigned dummy_check(void)
        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;
 }
 
-unsigned exam_indexed(void)
+unsigned exam_indexed()
 {
        unsigned result = 0;
        
        cout << "examining indexed objects" << flush;
-       clog << "----------indexed objects:" << endl;
 
        result += delta_check();  cout << '.' << flush;
        result += metric_check();  cout << '.' << flush;
@@ -396,12 +405,10 @@ unsigned exam_indexed(void)
        result += spinor_check(); cout << '.' << flush;
        result += dummy_check(); cout << '.' << flush;
        
-       if (!result) {
-               cout << " passed " << endl;
-               clog << "(no output)" << endl;
-       } else {
-               cout << " failed " << endl;
-       }
-       
        return result;
 }
+
+int main(int argc, char** argv)
+{
+       return exam_indexed();
+}