FM / hana

/usr/include/boost/hana

Name	Size	Mode	Actions
concept/	-	0755	rm
core/	-	0755	rm
detail/	-	0755	rm
experimental/	-	0755	rm
ext/	-	0755	rm
functional/	-	0755	rm
fwd/	-	0755	rm
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zip_shortest.hpp	1604	0644	edit dl rm
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zip_with.hpp	2292	0644	edit dl rm

Edit: /usr/include/boost/hana/remove_range.hpp (3885B)

/*!
@file
Defines `boost::hana::remove_range` and `boost::hana::remove_range_c`.

@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_REMOVE_RANGE_HPP
#define BOOST_HANA_REMOVE_RANGE_HPP

#include <boost/hana/fwd/remove_range.hpp>

#include <boost/hana/at.hpp>
#include <boost/hana/concept/integral_constant.hpp>
#include <boost/hana/concept/sequence.hpp>
#include <boost/hana/config.hpp>
#include <boost/hana/core/dispatch.hpp>
#include <boost/hana/core/make.hpp>
#include <boost/hana/integral_constant.hpp>
#include <boost/hana/length.hpp>

#include <cstddef>
#include <utility>

BOOST_HANA_NAMESPACE_BEGIN
    //! @cond
    template <typename Xs, typename From, typename To>
    constexpr auto remove_range_t::operator()(Xs&& xs, From const& from, To const& to) const {
        using S = typename hana::tag_of<Xs>::type;
        using RemoveRange = BOOST_HANA_DISPATCH_IF(remove_range_impl<S>,
            hana::Sequence<S>::value &&
            hana::IntegralConstant<From>::value &&
            hana::IntegralConstant<To>::value
        );

#ifndef BOOST_HANA_CONFIG_DISABLE_CONCEPT_CHECKS
        static_assert(hana::Sequence<S>::value,
        "hana::remove_range(xs, from, to) requires 'xs' to be a Sequence");

static_assert(hana::IntegralConstant<From>::value,
        "hana::remove_range(xs, from, to) requires 'from' to be an IntegralConstant");

static_assert(hana::IntegralConstant<To>::value,
        "hana::remove_range(xs, from, to) requires 'to' to be an IntegralConstant");
    #endif

return RemoveRange::apply(static_cast<Xs&&>(xs), from, to);
    }
    //! @endcond

template <typename S, bool condition>
    struct remove_range_impl<S, when<condition>> : default_ {
        template <std::size_t offset, typename Xs, std::size_t ...before, std::size_t ...after>
        static constexpr auto
        remove_range_helper(Xs&& xs, std::index_sequence<before...>,
                                     std::index_sequence<after...>)
        {
            return hana::make<S>(
                hana::at_c<before>(static_cast<Xs&&>(xs))...,
                hana::at_c<offset + after>(static_cast<Xs&&>(xs))...
            );
        }

template <typename Xs, typename From, typename To>
        static constexpr auto apply(Xs&& xs, From const&, To const&) {
            constexpr std::size_t from = From::value;
            constexpr std::size_t to = To::value;
            constexpr std::size_t len = decltype(hana::length(xs))::value;
            constexpr std::size_t before = from == to ? len : from;
            constexpr std::size_t after = from == to ? 0 : len - to;

static_assert(from <= to,
            "hana::remove_range(xs, from, to) requires '[from, to)' to be a "
            "valid interval, meaning that 'from <= to'");
            static_assert(from == to || from >= 0,
            "hana::remove_range(xs, from, to) requires 'from' to be non-negative");
            static_assert(from == to || to <= len,
            "hana::remove_range(xs, from, to) requires 'to <= length(xs)'");

return remove_range_helper<to>(static_cast<Xs&&>(xs),
                                           std::make_index_sequence<before>{},
                                           std::make_index_sequence<after>{});
        }
    };

template <std::size_t from, std::size_t to>
    struct remove_range_c_t {
        template <typename Xs>
        constexpr decltype(auto) operator()(Xs&& xs) const {
            return hana::remove_range(static_cast<Xs&&>(xs),
                                      hana::size_c<from>,
                                      hana::size_c<to>);
        }
    };
BOOST_HANA_NAMESPACE_END

#endif // !BOOST_HANA_REMOVE_RANGE_HPP

/*! @file Defines `boost::hana::remove_range` and `boost::hana::remove_range_c`. @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_REMOVE_RANGE_HPP #define BOOST_HANA_REMOVE_RANGE_HPP #include #include #include #include #include #include #include #include #include #include #include BOOST_HANA_NAMESPACE_BEGIN //! @cond template constexpr auto remove_range_t::operator()(Xs&& xs, From const& from, To const& to) const { using S = typename hana::tag_of::type; using RemoveRange = BOOST_HANA_DISPATCH_IF(remove_range_impl, hana::Sequence::value && hana::IntegralConstant::value && hana::IntegralConstant::value ); #ifndef BOOST_HANA_CONFIG_DISABLE_CONCEPT_CHECKS static_assert(hana::Sequence::value, "hana::remove_range(xs, from, to) requires 'xs' to be a Sequence"); static_assert(hana::IntegralConstant::value, "hana::remove_range(xs, from, to) requires 'from' to be an IntegralConstant"); static_assert(hana::IntegralConstant::value, "hana::remove_range(xs, from, to) requires 'to' to be an IntegralConstant"); #endif return RemoveRange::apply(static_cast(xs), from, to); } //! @endcond template struct remove_range_impl> : default_ { template static constexpr auto remove_range_helper(Xs&& xs, std::index_sequence, std::index_sequence) { return hana::make( hana::at_c(static_cast(xs))..., hana::at_c(static_cast(xs))... ); } template static constexpr auto apply(Xs&& xs, From const&, To const&) { constexpr std::size_t from = From::value; constexpr std::size_t to = To::value; constexpr std::size_t len = decltype(hana::length(xs))::value; constexpr std::size_t before = from == to ? len : from; constexpr std::size_t after = from == to ? 0 : len - to; static_assert(from <= to, "hana::remove_range(xs, from, to) requires '[from, to)' to be a " "valid interval, meaning that 'from <= to'"); static_assert(from == to || from >= 0, "hana::remove_range(xs, from, to) requires 'from' to be non-negative"); static_assert(from == to || to <= len, "hana::remove_range(xs, from, to) requires 'to <= length(xs)'"); return remove_range_helper(static_cast(xs), std::make_index_sequence{}, std::make_index_sequence{}); } }; template struct remove_range_c_t { template constexpr decltype(auto) operator()(Xs&& xs) const { return hana::remove_range(static_cast(xs), hana::size_c, hana::size_c); } }; BOOST_HANA_NAMESPACE_END #endif // !BOOST_HANA_REMOVE_RANGE_HPP