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associative iterators & views

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[SVN r57156]
This commit is contained in:
Christopher Schmidt
2009-10-25 22:59:54 +00:00
parent 35e469e2d5
commit 9b26b4a0f7
69 changed files with 1331 additions and 942 deletions
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69
include/boost/fusion/container/map/detail/begin_impl.hpp
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@ -1,56 +1,43 @@
/*=============================================================================
Copyright (c) 2001-2006 Joel de Guzman
Copyright (c) 2009 Christopher Schmidt
Distributed under the Boost Software License, Version 1.0. (See accompanying
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(FUSION_BEGIN_IMPL_05222005_1108)
#define FUSION_BEGIN_IMPL_05222005_1108
#include <boost/fusion/sequence/intrinsic/begin.hpp>
#include <boost/type_traits/is_const.hpp>
#include <boost/mpl/eval_if.hpp>
#include <boost/mpl/identity.hpp>
#ifndef BOOST_FUSION_CONTAINER_MAP_DETAIL_BEGIN_IMPL_HPP
#define BOOST_FUSION_CONTAINER_MAP_DETAIL_BEGIN_IMPL_HPP
namespace boost { namespace fusion
#include <boost/fusion/iterator/basic_iterator.hpp>
namespace boost { namespace fusion { namespace extension
{
struct map_tag;
template <typename>
struct begin_impl;
namespace extension
template <>
struct begin_impl<map_tag>
{
template <typename Tag>
struct begin_impl;
template <>
struct begin_impl<map_tag>
template <typename Seq>
struct apply
{
template <typename Sequence>
struct apply
typedef
basic_iterator<
map_iterator_tag
, typename Seq::category
, Seq
, 0
>
type;
static type
call(Seq& seq)
{
typedef typename
result_of::begin<typename Sequence::storage_type>::type
iterator_type;
typedef typename
result_of::begin<typename Sequence::storage_type const>::type
const_iterator_type;
typedef typename
mpl::eval_if<
is_const<Sequence>
, mpl::identity<const_iterator_type>
, mpl::identity<iterator_type>
>::type
type;
static type
call(Sequence& m)
{
return fusion::begin(m.get_data());
}
};
return type(seq,0);
}
};
}
}}
};
}}}
#endif