add explicit true type == "no filter"

2014-06-01 00:06:33 +02:00
parent 99b6a700ef
commit dd4c8a67ba
4 changed files with 7 additions and 4 deletions
--- a/include/llmr/map/filter_expression.hpp
+++ b/include/llmr/map/filter_expression.hpp
@@ -48,7 +48,8 @@ class PropertyExpression;

 typedef util::variant<
    util::recursive_wrapper<PropertyFilter>,
-    util::recursive_wrapper<PropertyExpression>
+    util::recursive_wrapper<PropertyExpression>,
+    std::true_type
 > PropertyFilterExpression;