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Fusion: added nview and friends

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[SVN r56376]
This commit is contained in:
Hartmut Kaiser
2009-09-25 00:20:03 +00:00
parent b16d42a31b
commit 43645b3764
16 changed files with 721 additions and 0 deletions
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49
include/boost/fusion/view/nview/detail/advance_impl.hpp Normal file
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/*=============================================================================
Copyright (c) 2009 Hartmut Kaiser
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_NVIEW_ADVANCE_IMPL_SEP_24_2009_0212PM)
#define BOOST_FUSION_NVIEW_ADVANCE_IMPL_SEP_24_2009_0212PM
#include <boost/mpl/advance.hpp>
#include <boost/fusion/iterator/advance.hpp>
namespace boost { namespace fusion
{
struct nview_iterator_tag;
template <typename Sequence, typename Pos>
struct nview_iterator;
namespace extension
{
template<typename Tag>
struct advance_impl;
template<>
struct advance_impl<nview_iterator_tag>
{
template<typename Iterator, typename Dist>
struct apply
{
typedef typename Iterator::first_type::iterator_type iterator_type;
typedef typename Iterator::sequence_type sequence_type;
typedef nview_iterator<sequence_type,
typename mpl::advance<iterator_type, Dist>::type> type;
static type
call(Iterator const& i)
{
return type(i.seq);
}
};
};
}
}}
#endif