[GiNaC-devel] [PATCH 2/6] check_parameter_G: fix pontential increment of end().

[Alexei Sheplyakov]

Incrementing past-the-end iterator is not permitted by the standard, see
[lib.input.iterators].

---
 ginac/inifcns_nstdsums.cpp |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/ginac/inifcns_nstdsums.cpp b/ginac/inifcns_nstdsums.cpp
index b410533..11a91dd 100644
--- a/ginac/inifcns_nstdsums.cpp
+++ b/ginac/inifcns_nstdsums.cpp
@@ -659,6 +659,8 @@ Gparameter::const_iterator check_parameter_G(const Gparameter& a, int scale,
 			++trailing_zeros;
 		}
 	}
+	if (lastnonzero == a.end())
+		return a.end();
 	return ++lastnonzero;
 }
 
-- 
1.6.3.3