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calculation_type.hpp
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closure_as_bool.hpp
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combine_if.hpp
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condition.hpp
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coordinate_cast.hpp
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is_inverse_spheroidal_coordinates.hpp
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math.hpp
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normalize_spheroidal_box_coordinates.hpp
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normalize_spheroidal_coordinates.hpp
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order_as_direction.hpp
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range.hpp
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rational.hpp
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select_calculation_type.hpp
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select_coordinate_type.hpp
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select_sequence_element.hpp
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series_expansion.hpp
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transform_variant.hpp
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tuples.hpp
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/usr/include/boost/geometry/util/transform_variant.hpp
(2735B)
// 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 <boost/mpl/transform.hpp> #include <boost/variant/variant_fwd.hpp> 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<int, float, long> types; typedef transform_variant<types, add_pointer<_> > transformed; typedef variant<int*, float*, long*> result; BOOST_MPL_ASSERT(( equal<result, transformed> )); \endcode */ template <typename Sequence, typename Op, typename In = boost::mpl::na> 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<int, float, long> variant_type; typedef transform_variant<variant_type, add_pointer<_> > transformed; typedef variant<int*, float*, long*> result; BOOST_MPL_ASSERT(( equal<result, transformed> )); \endcode */ template <BOOST_VARIANT_ENUM_PARAMS(typename T), typename Op> struct transform_variant<variant<BOOST_VARIANT_ENUM_PARAMS(T)>, Op, boost::mpl::na> : make_variant_over< typename boost::mpl::transform< typename variant<BOOST_VARIANT_ENUM_PARAMS(T)>::types, Op >::type > {}; }} // namespace boost::geometry #endif // BOOST_GEOMETRY_UTIL_TRANSFORM_VARIANT_HPP
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