Imported Upstream version 1.72.0

[platform/upstream/boost.git] / boost / geometry / algorithms / detail / overlay / traversal.hpp

diff --git a/boost/geometry/algorithms/detail/overlay/traversal.hpp b/boost/geometry/algorithms/detail/overlay/traversal.hpp
index 9eb9463..0edacad 100644 (file)
--- a/boost/geometry/algorithms/detail/overlay/traversal.hpp
+++ b/boost/geometry/algorithms/detail/overlay/traversal.hpp
@@ -72,24 +72,6 @@ inline void debug_traverse(Turn const& , Operation, const char*, bool = true)
 }
 #endif
 
-
-//! Metafunction to define side_order (clockwise, ccw) by operation_type
-template <operation_type OpType>
-struct side_compare {};
-
-template <>
-struct side_compare<operation_union>
-{
-    typedef std::greater<int> type;
-};
-
-template <>
-struct side_compare<operation_intersection>
-{
-    typedef std::less<int> type;
-};
-
-
 template
 <
     bool Reverse1,
@@ -124,7 +106,7 @@ private :
 
     static const operation_type target_operation = operation_from_overlay<OverlayType>::value;
 
-    typedef typename side_compare<target_operation>::type side_compare_type;
+    typedef typename sort_by_side::side_compare<target_operation>::type side_compare_type;
     typedef typename boost::range_value<Turns>::type turn_type;
     typedef typename turn_type::turn_operation_type turn_operation_type;