// Boost.Geometry (aka GGL, Generic Geometry Library) // Copyright (c) 2007-2015 Barend Gehrels, Amsterdam, the Netherlands. // Copyright (c) 2008-2015 Bruno Lalande, Paris, France. // Copyright (c) 2009-2015 Mateusz Loskot, London, UK. // This file was modified by Oracle on 2015. // Modifications copyright (c) 2015, Oracle and/or its affiliates. // Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle // 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_UTIL_TRANSFORM_VARIANT_HPP #define BOOST_GEOMETRY_UTIL_TRANSFORM_VARIANT_HPP #include #include namespace boost { namespace geometry { /*! \brief Meta-function that takes a Sequence type, an MPL lambda expression and an optional Inserter and returns a variant type over the same types as the initial variant type, each transformed using the lambda expression. \ingroup utility \par Example \code typedef boost::mpl::vector types; typedef transform_variant > transformed; typedef variant result; BOOST_MPL_ASSERT(( equal )); \endcode */ template struct transform_variant: make_variant_over< typename boost::mpl::transform< Sequence, Op, In >::type > {}; /*! \brief Meta-function that takes a boost::variant type and an MPL lambda expression and returns a variant type over the same types as the initial variant type, each transformed using the lambda expression. \ingroup utility \par Example \code typedef variant variant_type; typedef transform_variant > transformed; typedef variant result; BOOST_MPL_ASSERT(( equal )); \endcode */ template struct transform_variant, Op, boost::mpl::na> : make_variant_over< typename boost::mpl::transform< typename variant::types, Op >::type > {}; }} // namespace boost::geometry #endif // BOOST_GEOMETRY_UTIL_TRANSFORM_VARIANT_HPP