Imported Upstream version 1.72.0

[platform/upstream/boost.git] / boost / geometry / strategies / cartesian / envelope_box.hpp

diff --git a/boost/geometry/strategies/cartesian/envelope_box.hpp b/boost/geometry/strategies/cartesian/envelope_box.hpp
index ce723a1..893866f 100644 (file)
--- a/boost/geometry/strategies/cartesian/envelope_box.hpp
+++ b/boost/geometry/strategies/cartesian/envelope_box.hpp
@@ -80,6 +80,8 @@ namespace strategy { namespace envelope
 
 struct cartesian_box
 {
+    typedef cartesian_tag cs_tag;
+
     typedef strategy::expand::cartesian_box box_expand_strategy_type;
 
     static inline box_expand_strategy_type get_box_expand_strategy()