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diff --git a/boost/geometry/core/coordinate_type.hpp b/boost/geometry/core/coordinate_type.hpp
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+// Boost.Geometry (aka GGL, Generic Geometry Library)
+
+// Copyright (c) 2008-2012 Bruno Lalande, Paris, France.
+// Copyright (c) 2008-2012 Barend Gehrels, Amsterdam, the Netherlands.
+// Copyright (c) 2009-2012 Mateusz Loskot, London, UK.
+
+// Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
+// (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands.
+
+// 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_CORE_COORDINATE_TYPE_HPP
+#define BOOST_GEOMETRY_CORE_COORDINATE_TYPE_HPP
+
+
+#include <boost/mpl/assert.hpp>
+#include <boost/type_traits/remove_const.hpp>
+
+#include <boost/geometry/core/point_type.hpp>
+#include <boost/geometry/util/promote_floating_point.hpp>
+
+
+namespace boost { namespace geometry
+{
+
+namespace traits
+{
+
+/*!
+\brief Traits class which indicate the coordinate type (double,float,...) of a point
+\ingroup traits
+\par Geometries:
+    - point
+\par Specializations should provide:
+    - typedef T type; (double,float,int,etc)
+*/
+template <typename Point, typename Enable = void>
+struct coordinate_type
+{
+    BOOST_MPL_ASSERT_MSG
+        (
+            false, NOT_IMPLEMENTED_FOR_THIS_POINT_TYPE, (types<Point>)
+        );
+};
+
+} // namespace traits
+
+#ifndef DOXYGEN_NO_DISPATCH
+namespace core_dispatch
+{
+
+template <typename GeometryTag, typename Geometry>
+struct coordinate_type
+{
+    typedef typename point_type<GeometryTag, Geometry>::type point_type;
+
+    // Call its own specialization on point-tag
+    typedef typename coordinate_type<point_tag, point_type>::type type;
+};
+
+template <typename Point>
+struct coordinate_type<point_tag, Point>
+{
+    typedef typename traits::coordinate_type<Point>::type type;
+};
+
+} // namespace core_dispatch
+#endif // DOXYGEN_NO_DISPATCH
+
+/*!
+\brief \brief_meta{type, coordinate type (int\, float\, double\, etc), \meta_point_type}
+\tparam Geometry \tparam_geometry
+\ingroup core
+
+\qbk{[include reference/core/coordinate_type.qbk]}
+*/
+template <typename Geometry>
+struct coordinate_type
+{
+    typedef typename core_dispatch::coordinate_type
+        <
+            typename tag<Geometry>::type,
+            typename boost::remove_const<Geometry>::type
+        >::type type;
+};
+
+template <typename Geometry>
+struct fp_coordinate_type
+{
+    typedef typename promote_floating_point
+        <
+            typename coordinate_type<Geometry>::type
+        >::type type;
+};
+
+
+}} // namespace boost::geometry
+
+
+#endif // BOOST_GEOMETRY_CORE_COORDINATE_TYPE_HPP