1 files changed, 64 insertions, 0 deletions
diff --git a/boost/geometry/algorithms/detail/is_valid/debug_print_turns.hpp b/boost/geometry/algorithms/detail/is_valid/debug_print_turns.hpp
new file mode 100644
index 0000000000..6824921b63
--- /dev/null
+++ b/boost/geometry/algorithms/detail/is_valid/debug_print_turns.hpp
@@ -0,0 +1,64 @@
+// Boost.Geometry (aka GGL, Generic Geometry Library)
+
+// Copyright (c) 2014, Oracle and/or its affiliates.
+
+// Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle
+
+// Licensed under the Boost Software License version 1.0.
+// http://www.boost.org/users/license.html
+
+#ifndef BOOST_GEOMETRY_ALGORITHMS_DETAIL_IS_VALID_DEBUG_PRINT_TURNS_HPP
+#define BOOST_GEOMETRY_ALGORITHMS_DETAIL_IS_VALID_DEBUG_PRINT_TURNS_HPP
+
+#ifdef BOOST_GEOMETRY_TEST_DEBUG
+#include <iostream>
+
+#include <boost/geometry/io/dsv/write.hpp>
+#include <boost/geometry/algorithms/detail/overlay/debug_turn_info.hpp>
+#endif
+
+
+namespace boost { namespace geometry
+{
+
+namespace detail { namespace is_valid
+{
+
+#ifdef BOOST_GEOMETRY_TEST_DEBUG
+template <typename TurnIterator>
+inline void debug_print_turns(TurnIterator first, TurnIterator beyond)
+{
+    std::cout << "turns:";
+    for (TurnIterator tit = first; tit != beyond; ++tit)
+    {
+        std::cout << " ["
+                  << geometry::method_char(tit->method)
+                  << ","
+                  << geometry::operation_char(tit->operations[0].operation)
+                  << "/"
+                  << geometry::operation_char(tit->operations[1].operation)
+                  << " {"
+                  << tit->operations[0].seg_id.multi_index
+                  << ", "
+                  << tit->operations[1].seg_id.multi_index
+                  << "} {"
+                  << tit->operations[0].seg_id.ring_index
+                  << ", "
+                  << tit->operations[1].seg_id.ring_index
+                  << "} "
+                  << geometry::dsv(tit->point)
+                  << "]";
+    }
+    std::cout << std::endl << std::endl;
+}
+#else
+template <typename TurnIterator>
+inline void debug_print_turns(TurnIterator, TurnIterator)
+{}
+#endif // BOOST_GEOMETRY_TEST_DEBUG
+
+}} // namespace detail::is_valid
+
+}} // namespace boost::geometry
+
+#endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_IS_VALID_DEBUG_PRINT_TURNS_HPP