Update copyright statements.

[ginac.git] / check / exam_inifcns_nstdsums.cpp

diff --git a/check/exam_inifcns_nstdsums.cpp b/check/exam_inifcns_nstdsums.cpp
index 247fa80d8ebb2edd12b6ac442c1047fe800f7237..e35a4eabce81c1b163cc606fd2920cfdb4c75230 100644 (file)
--- a/check/exam_inifcns_nstdsums.cpp
+++ b/check/exam_inifcns_nstdsums.cpp
@@ -4,7 +4,7 @@
  *  functions. */
 
 /*
- *  GiNaC Copyright (C) 1999-2008 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2014 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
@@ -21,12 +21,12 @@
  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  */
 
-#include <iostream>
-#include <fstream>
 #include "ginac.h"
-using namespace std;
 using namespace GiNaC;
 
+#include <iostream>
+#include <fstream>
+using namespace std;
 
 
 ////////////////////////////////////////////////////////////////////////////////
@@ -80,7 +80,7 @@ static unsigned inifcns_test_S()
        int digitsbuf = Digits;
        // precision of data
        Digits = 22;
-       ex prec = 5 * pow(10, -(int)Digits);
+       ex prec = 5 * pow(10, -(ex)Digits);
        
        unsigned result = 0;
        
@@ -125,9 +125,10 @@ static unsigned inifcns_test_S()
 
 static unsigned inifcns_test_HLi()
 {
+       using GiNaC::log;
        int digitsbuf = Digits;
        Digits = 17;
-       ex prec = 5 * pow(10, -(int)Digits);
+       ex prec = 5 * pow(10, -(ex)Digits);
        numeric almostone("0.999999999999999999");
        unsigned result = 0;
 
@@ -198,7 +199,7 @@ static unsigned inifcns_test_zeta()
        
        for (lst::const_iterator it = res.begin(); it != res.end(); it++) {
                Digits = 17;
-               ex prec = 5 * pow(10, -(int)Digits);
+               ex prec = 5 * pow(10, -(ex)Digits);
                ex diff = abs((*it).evalf());
                if (diff > prec) {
                        clog << *it << " seems to be wrong: " << diff << endl;
@@ -207,7 +208,7 @@ static unsigned inifcns_test_zeta()
                }
                cout << "." << flush;
                Digits = 40;
-               prec = 5 * pow(10, -(int)Digits);
+               prec = 5 * pow(10, -(ex)Digits);
                diff = abs((*it).evalf());
                if (diff > prec) {
                        clog << *it << " seems to be wrong: " << diff << endl;
@@ -234,7 +235,7 @@ static unsigned inifcns_test_LiG()
 {
        int digitsbuf = Digits;
        Digits = 17;
-       ex prec = 5 * pow(10, -(int)Digits);
+       ex prec = 5 * pow(10, -(ex)Digits);
        numeric almostone("0.99999999999999999999");
        unsigned result = 0;
 
@@ -290,6 +291,108 @@ static unsigned inifcns_test_LiG()
 }
 
 
+////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
+//  legacy exam - checking for historical bugs
+////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
+
+
+static unsigned inifcns_test_legacy()
+{
+       Digits = 17;
+       ex prec = 5 * pow(10, -(ex)Digits);
+
+       unsigned result = 0;
+
+       ex r1 = zeta(lst(1,1,1,1,1,1),lst(-1,-1,-1,1,1,1));
+       if ((r1.evalf() - numeric("-0.0012588769028204890704")) > prec) {
+               clog << "zeta({1,1,1,1,1,1},{-1,-1,-1,1,1,1}) seems to be wrong." << endl;
+               result++;
+       }
+
+       ex x1 = exp(2*Pi*I/13).evalf();
+       ex x2 = exp(24*Pi*I/13).evalf();
+       ex r2 = Li(lst(2),lst(x1)).hold().evalf();
+       ex r3 = Li(lst(2),lst(x2)).hold().evalf();
+       if ( abs(r2-conjugate(r3)) > prec ) {
+               clog << "Legacy test 2 seems to be wrong." << endl;
+               result++;
+       }
+
+       ex x3 = exp(5*Pi*I/3).evalf();
+       ex r4 = Li(lst(3),lst(x3)).hold().evalf();
+       if ( abs(r4 - numeric("0.40068563438653142847-0.95698384815740185713*I")) > prec ) {
+               clog << "Legacy test 3 seems to be wrong." << endl;
+               result++;
+       }
+
+       Digits = 100;
+       prec = 5 * pow(10, -(ex)Digits);
+       ex x0 = 1.;
+          x1 = exp(Pi*I/3).evalf();
+          x2 = exp(2*Pi*I/3).evalf();
+          x3 = -1.;
+       ex x4 = exp(4*Pi*I/3).evalf();
+       ex x5 = exp(5*Pi*I/3).evalf();
+
+       ex r5 = Li(lst(1,1,1,1),lst(x2,x4,x3,x0)).hold().evalf();
+       ex r6 = Li(lst(1,1,1,1),lst(x4,x2,x3,x0)).hold().evalf();
+       if ( abs(r5-conjugate(r6)) > prec ) {
+               clog << "Legacy test 4 seems to be wrong." << endl;
+               result++;
+       }
+
+       ex r7 = Li(lst(1,2,1),lst(x3,x2,x4)).hold().evalf()
+               +Li(lst(1,1,2),lst(x3,x2,x4)).hold().evalf()
+               +Li(lst(1,1,1,1),lst(x3,x0,x2,x4)).hold().evalf()
+               +Li(lst(1,1,1,1),lst(x3,x2,x0,x4)).hold().evalf()
+               +Li(lst(1,1,1,1),lst(x3,x2,x4,x0)).hold().evalf()
+               +Li(lst(1,2,1),lst(x2,x1,x0)).hold().evalf()
+               +Li(lst(1,1,2),lst(x2,x3,x4)).hold().evalf()
+               +Li(lst(1,1,1,1),lst(x2,x4,x3,x0)).hold().evalf()
+               +Li(lst(1,1,1,1),lst(x2,x3,x4,x0)).hold().evalf()
+               +Li(lst(1,1,1,1),lst(x2,x3,x0,x4)).hold().evalf()
+               +Li(lst(2,2),lst(x5,x4)).hold().evalf()
+               +Li(lst(2,1,1),lst(x5,x0,x4)).hold().evalf()
+               +Li(lst(2,1,1),lst(x5,x4,x0)).hold().evalf()
+               -Li(lst(1,1),lst(x3,x0)).hold().evalf()*Li(lst(1,1),lst(x2,x4)).hold().evalf();
+       if ( abs(r7) > prec ) {
+               clog << "Legacy test 5 seems to be wrong." << endl;
+               result++;
+       }
+
+       return result;
+}
+
+static unsigned check_G_y_one_bug()
+{
+       exvector exprs;
+       exprs.push_back(G(lst(-1,-1, 1,-1, 0), 1));
+       exprs.push_back(G(lst(-1, 0, 1,-1, 0), 1));
+       exprs.push_back(G(lst(-1, 1,-1,-1, 0), 1));
+       exprs.push_back(G(lst(-1, 1,-1, 0, 0), 1));
+       exprs.push_back(G(lst(-1, 1,-1, 1, 0), 1));
+       exprs.push_back(G(lst(-1, 1, 0,-1, 0), 1));
+       exprs.push_back(G(lst(-1, 1, 1,-1, 0), 1));
+       exprs.push_back(G(lst( 0,-1, 1,-1, 0), 1));
+       exprs.push_back(G(lst( 0, 1, 1,-1, 0), 1));
+       unsigned err = 0;
+       for (exvector::const_iterator ep = exprs.begin(); ep != exprs.end(); ++ep) {
+               try {
+                       ex val = ep->evalf();
+                       if (!is_a<numeric>(val)) {
+                               clog << "evalf(" << *ep << ") is not a number: " << val << endl;
+                               ++err;
+                       }
+               } catch (std::exception& oops) {
+                       clog << "evalf(" << *ep << "): got an exception" << oops.what() << endl;
+                       ++err;
+               }
+       }
+       return err;
+}
+
 unsigned exam_inifcns_nstdsums(void)
 {
        unsigned result = 0;
@@ -300,6 +403,8 @@ unsigned exam_inifcns_nstdsums(void)
        result += inifcns_test_S();
        result += inifcns_test_HLi();
        result += inifcns_test_LiG();
+       result += inifcns_test_legacy();
+       result += check_G_y_one_bug();
        
        return result;
 }