G_numeric: fix evaluation with y == 1

[ginac.git] / check / exam_inifcns_nstdsums.cpp

diff --git a/check/exam_inifcns_nstdsums.cpp b/check/exam_inifcns_nstdsums.cpp
index d7273bb0fe4f9c2abd0fdc217cd8274537d0920c..7bf1efd1ed486a874a38dc7b66428c1418865929 100644 (file)
--- a/check/exam_inifcns_nstdsums.cpp
+++ b/check/exam_inifcns_nstdsums.cpp
@@ -365,6 +365,33 @@ static unsigned inifcns_test_legacy()
        return 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 exam_inifcns_nstdsums(void)
 {


@@ -377,6 +404,7 @@ unsigned exam_inifcns_nstdsums(void)
        result += inifcns_test_HLi();
        result += inifcns_test_LiG();
        result += inifcns_test_legacy();
        result += inifcns_test_HLi();
        result += inifcns_test_LiG();
        result += inifcns_test_legacy();

+       result += check_G_y_one_bug();

        
        return result;
 }
        
        return result;
 }