FM / variadic

/usr/include/boost/hana/detail/variadic/

/usr/include/boost/hana/detail/variadic

Name	Size	Mode	Actions
reverse_apply/	-	0755	rm
at.hpp	1075	0644	edit dl rm
drop_into.hpp	1326	0644	edit dl rm
foldl1.hpp	11450	0644	edit dl rm
foldr1.hpp	11419	0644	edit dl rm
reverse_apply.hpp	889	0644	edit dl rm
split_at.hpp	5643	0644	edit dl rm
take.hpp	1473	0644	edit dl rm

Edit: /usr/include/boost/hana/detail/variadic/at.hpp (1075B)

/*!
@file
Defines `boost::hana::detail::variadic::at`.

@copyright Louis Dionne 2013-2017
Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
 */

#ifndef BOOST_HANA_DETAIL_VARIADIC_AT_HPP
#define BOOST_HANA_DETAIL_VARIADIC_AT_HPP

#include <boost/hana/config.hpp>

#include <cstddef>
#include <utility>

BOOST_HANA_NAMESPACE_BEGIN namespace detail { namespace variadic {
    template <std::size_t n, typename = std::make_index_sequence<n>>
    struct at_type;

template <std::size_t n, std::size_t ...ignore>
    struct at_type<n, std::index_sequence<ignore...>> {
    private:
        template <typename Nth>
        static constexpr auto go(decltype(ignore, (void*)0)..., Nth nth, ...)
        { return nth; }

public:
        template <typename ...Xs>
        constexpr auto operator()(Xs ...xs) const
        { return *go(&xs...); }
    };

template <std::size_t n>
    constexpr at_type<n> at{};
}} BOOST_HANA_NAMESPACE_END

#endif // !BOOST_HANA_DETAIL_VARIADIC_AT_HPP

/*! @file Defines `boost::hana::detail::variadic::at`. @copyright Louis Dionne 2013-2017 Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt) */ #ifndef BOOST_HANA_DETAIL_VARIADIC_AT_HPP #define BOOST_HANA_DETAIL_VARIADIC_AT_HPP #include #include #include BOOST_HANA_NAMESPACE_BEGIN namespace detail { namespace variadic { template > struct at_type; template struct at_type> { private: template static constexpr auto go(decltype(ignore, (void*)0)..., Nth nth, ...) { return nth; } public: template constexpr auto operator()(Xs ...xs) const { return *go(&xs...); } }; template constexpr at_type at{}; }} BOOST_HANA_NAMESPACE_END #endif // !BOOST_HANA_DETAIL_VARIADIC_AT_HPP