replaced use of iterators with the use of pointers to avoid problems when the iterators

are STLport iterators


[SVN r9976]

libs/graph

@@ -1 +1 @@
-Subproject commit d869963bf361a93562c80dcd386e579d7d839ebd
+Subproject commit 1f8de0f4da8c96edfe98dfdd4447a7af6ffabc18