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Diffstat (limited to 'boost/geometry/algorithms/detail/is_valid/ring.hpp')
-rw-r--r--boost/geometry/algorithms/detail/is_valid/ring.hpp4
1 files changed, 3 insertions, 1 deletions
diff --git a/boost/geometry/algorithms/detail/is_valid/ring.hpp b/boost/geometry/algorithms/detail/is_valid/ring.hpp
index 40698155b5..5a55d998e4 100644
--- a/boost/geometry/algorithms/detail/is_valid/ring.hpp
+++ b/boost/geometry/algorithms/detail/is_valid/ring.hpp
@@ -2,7 +2,7 @@
// Copyright (c) 2017 Adam Wulkiewicz, Lodz, Poland.
-// Copyright (c) 2014-2017, Oracle and/or its affiliates.
+// Copyright (c) 2014-2018, Oracle and/or its affiliates.
// Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle
// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
@@ -20,6 +20,7 @@
#include <boost/geometry/core/closure.hpp>
#include <boost/geometry/core/cs.hpp>
#include <boost/geometry/core/point_order.hpp>
+#include <boost/geometry/core/tags.hpp>
#include <boost/geometry/util/order_as_direction.hpp>
#include <boost/geometry/util/range.hpp>
@@ -36,6 +37,7 @@
#include <boost/geometry/algorithms/detail/is_valid/has_invalid_coordinate.hpp>
#include <boost/geometry/algorithms/detail/is_valid/has_spikes.hpp>
#include <boost/geometry/algorithms/detail/is_valid/has_valid_self_turns.hpp>
+#include <boost/geometry/algorithms/dispatch/is_valid.hpp>
#include <boost/geometry/strategies/area.hpp>