1 files changed, 38 insertions, 0 deletions
diff --git a/boost/geometry/srs/projections/invalid_point.hpp b/boost/geometry/srs/projections/invalid_point.hpp
new file mode 100644
index 0000000000..41bc8252c5
--- /dev/null
+++ b/boost/geometry/srs/projections/invalid_point.hpp
@@ -0,0 +1,38 @@
+// Boost.Geometry
+
+// Copyright (c) 2017-2018, Oracle and/or its affiliates.
+// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
+
+// Use, modification and distribution is subject to the Boost Software License,
+// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef BOOST_GEOMETRY_PROJECTIONS_INVALID_POINT_HPP
+#define BOOST_GEOMETRY_PROJECTIONS_INVALID_POINT_HPP
+
+
+#include <cmath>
+
+#include <boost/geometry/core/access.hpp>
+
+
+namespace boost { namespace geometry { namespace projections
+{
+
+// Originally in pj_transform()
+template <typename Point>
+inline void set_invalid_point(Point & point)
+{
+    geometry::set<0>(point, HUGE_VAL);
+    geometry::set<1>(point, HUGE_VAL);
+}
+
+template <typename Point>
+inline bool is_invalid_point(Point const& point)
+{
+    return geometry::get<0>(point) == HUGE_VAL;
+}
+
+}}} // namespace boost::geometry::projections
+
+#endif // BOOST_GEOMETRY_PROJECTIONS_INVALID_POINT_HPP