Merge pull request #41 from bmcdorman/feature-arrow_operator

Added arrow operator to ValueIterator and ValueConstIterator

Author: cdunn2001

Diff for: include/json/value.h

@@ -1017,6 +1017,8 @@ class JSON_API ValueConstIterator : public ValueIteratorBase {
   }
 
   reference operator*() const { return deref(); }
+
+  pointer operator->() const { return &deref(); }
 };
 
 /** \brief Iterator for object and array value.
@@ -1071,6 +1073,8 @@ class JSON_API ValueIterator : public ValueIteratorBase {
   }
 
   reference operator*() const { return deref(); }
+
+  pointer operator->() const { return &deref(); }
 };
 
 } // namespace Json