1 // Boost.Geometry (aka GGL, Generic Geometry Library)
3 // Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
4 // Copyright (c) 2008-2012 Bruno Lalande, Paris, France.
5 // Copyright (c) 2009-2012 Mateusz Loskot, London, UK.
7 // Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
8 // (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands.
10 // Use, modification and distribution is subject to the Boost Software License,
11 // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
12 // http://www.boost.org/LICENSE_1_0.txt)
14 #ifndef BOOST_GEOMETRY_UTIL_PROMOTE_FLOATING_POINT_HPP
15 #define BOOST_GEOMETRY_UTIL_PROMOTE_FLOATING_POINT_HPP
18 #include <boost/mpl/if.hpp>
19 #include <boost/type_traits/is_integral.hpp>
22 namespace boost { namespace geometry
27 \brief Meta-function converting, if necessary, to "a floating point" type
29 - if input type is integer, type is double
30 - else type is input type
34 template <typename T, typename PromoteIntegerTo = double>
35 struct promote_floating_point
40 boost::is_integral<T>,
47 }} // namespace boost::geometry
50 #endif // BOOST_GEOMETRY_UTIL_PROMOTE_FLOATING_POINT_HPP