mirror of https://github.com/axmolengine/axmol.git
88 lines
4.4 KiB
C++
88 lines
4.4 KiB
C++
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// Range v3 library
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//
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// Copyright Eric Niebler 2014-present
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//
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// Use, modification and distribution is subject to the
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// Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//
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// Project home: https://github.com/ericniebler/range-v3
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//
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#ifndef RANGES_V3_DETAIL_SATISFY_BOOST_RANGE_HPP
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#define RANGES_V3_DETAIL_SATISFY_BOOST_RANGE_HPP
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#include <meta/meta.hpp>
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#include <range/v3/range_fwd.hpp>
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#include <range/v3/range/concepts.hpp>
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#include <range/v3/range/traits.hpp>
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#ifndef RANGES_DOXYGEN_INVOKED
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namespace boost
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{
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/// \brief Boost Range specialisation point, for making Boost ranges out of range-v3
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/// views
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template<typename T, typename U>
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struct range_mutable_iterator;
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/// \brief Boost Range specialisation point, for making Boost ranges out of range-v3
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/// views
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template<typename T, typename U>
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struct range_const_iterator;
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/// \brief Boost Range specialisation point, for making Boost ranges out of range-v3
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/// views
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template<typename T>
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struct range_value;
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/// \brief Boost Range specialisation point, for making Boost ranges out of range-v3
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/// views
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template<typename T>
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struct range_size;
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} // namespace boost
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/// \brief Macro specialising Boost Range metafunctions for the specified view
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#define RANGES_SATISFY_BOOST_RANGE(view_name) \
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namespace boost \
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{ \
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template<typename... Ts> \
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struct range_mutable_iterator< \
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view_name<Ts...>, \
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::meta::if_c<(bool)::ranges::common_range<view_name<Ts...>>>> \
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{ \
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using type = ::ranges::iterator_t<view_name<Ts...>>; \
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}; \
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template<typename... Ts> \
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struct range_const_iterator< \
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view_name<Ts...>, \
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::meta::if_c<(bool)::ranges::common_range<view_name<Ts...> const>>> \
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{ \
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using type = ::ranges::iterator_t<view_name<Ts...> const>; \
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}; \
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template<typename... Ts> \
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struct range_value<view_name<Ts...>> \
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{ \
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using type = ::ranges::range_value_t<view_name<Ts...>>; \
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}; \
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template<typename... Ts> \
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struct range_size<view_name<Ts...>> \
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: ::meta::if_c<(bool)::ranges::common_range<view_name<Ts...>>, \
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::meta::defer<::ranges::range_size_t, view_name<Ts...>>, \
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::meta::nil_> \
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{}; \
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template<typename... Ts> \
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struct range_size<view_name<Ts...> const> \
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: ::meta::if_c<(bool)::ranges::common_range<view_name<Ts...> const>, \
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::meta::defer<::ranges::range_size_t, view_name<Ts...> const>, \
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::meta::nil_> \
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{}; \
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}
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#else
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#define RANGES_SATISFY_BOOST_RANGE(view_name)
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#endif
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#endif
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