Server : Apache/2.4.41 (Ubuntu) System : Linux absol.cf 5.4.0-198-generic #218-Ubuntu SMP Fri Sep 27 20:18:53 UTC 2024 x86_64 User : www-data ( 33) PHP Version : 7.4.33 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare, Directory :  /usr/include/boost/fusion/sequence/intrinsic/

Upload File : current_dir [ Writeable ] document_root [ Writeable ]

/*=============================================================================
    Copyright (c) 2006 Eric Niebler

    Distributed under 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)
==============================================================================*/
#if !defined(BOOST_FUSION_SEGMENTS_04052005_1141)
#define BOOST_FUSION_SEGMENTS_04052005_1141

#include <boost/fusion/support/config.hpp>
#include <boost/type_traits/is_const.hpp>
#include <boost/utility/enable_if.hpp>
#include <boost/fusion/sequence/intrinsic_fwd.hpp>
#include <boost/fusion/support/tag_of.hpp>

namespace boost { namespace fusion
{
    // Special tags:
    struct sequence_facade_tag;
    struct iterator_range_tag;

    // segments: returns a sequence of sequences
    namespace extension
    {
        template <typename Tag>
        struct segments_impl
        {
            template <typename Sequence>
            struct apply {};
        };

        template <>
        struct segments_impl<sequence_facade_tag>
        {
            template <typename Sequence>
            struct apply : Sequence::template segments<Sequence> {};
        }; 

        template <>
        struct segments_impl<iterator_range_tag>;
    }

    namespace result_of
    {
        template <typename Sequence>
        struct segments
        {
            typedef typename traits::tag_of<Sequence>::type tag_type;

            typedef typename
                extension::segments_impl<tag_type>::template apply<Sequence>::type
            type;
        };
    }

    template <typename Sequence>
    BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
    inline typename
        lazy_disable_if<
            is_const<Sequence>
          , result_of::segments<Sequence>
        >::type
    segments(Sequence& seq)
    {
        typedef typename traits::tag_of<Sequence>::type tag_type;
        return extension::segments_impl<tag_type>::template apply<Sequence>::call(seq);
    }

    template <typename Sequence>
    BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
    inline typename result_of::segments<Sequence const>::type
    segments(Sequence const& seq)
    {
        typedef typename traits::tag_of<Sequence const>::type tag_type;
        return extension::segments_impl<tag_type>::template apply<Sequence const>::call(seq);
    }
}}

#endif