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phase3: refactoring for v2.1

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[SVN r40211]
This commit is contained in:
Joel de Guzman
2007-10-20 11:50:27 +00:00
parent d0d540064d
commit 16bcb17c06
118 changed files with 199 additions and 211 deletions
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113
include/boost/fusion/adapted/mpl/mpl_iterator.hpp Normal file
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/*=============================================================================
Copyright (c) 2001-2006 Joel de Guzman
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_MPL_ITERATOR_05052005_0731)
#define FUSION_MPL_ITERATOR_05052005_0731
#include <boost/fusion/support/detail/mpl_iterator_category.hpp>
#include <boost/fusion/iterator/iterator_facade.hpp>
#include <boost/type_traits/remove_const.hpp>
#include <boost/mpl/deref.hpp>
#include <boost/mpl/next.hpp>
#include <boost/mpl/prior.hpp>
#include <boost/mpl/advance.hpp>
#include <boost/mpl/distance.hpp>
namespace boost { namespace fusion
{
template <typename Iterator_>
struct mpl_iterator
: iterator_facade<
mpl_iterator<Iterator_>
, typename detail::mpl_iterator_category<typename Iterator_::category>::type
>
{
typedef typename remove_const<Iterator_>::type iterator_type;
template <typename Iterator>
struct value_of : mpl::deref<typename Iterator::iterator_type> {};
template <typename Iterator>
struct deref
{
typedef typename mpl::deref<
typename Iterator::iterator_type>::type
type;
static type
call(Iterator)
{
return type();
}
};
template <typename Iterator>
struct next
{
typedef mpl_iterator<
typename mpl::next<typename Iterator::iterator_type>::type>
type;
static type
call(Iterator)
{
return type();
}
};
template <typename Iterator>
struct prior
{
typedef mpl_iterator<
typename mpl::prior<typename Iterator::iterator_type>::type>
type;
static type
call(Iterator)
{
return type();
}
};
template <typename Iterator, typename N>
struct advance
{
typedef mpl_iterator<
typename mpl::advance<typename Iterator::iterator_type, N>::type>
type;
static type
call(Iterator const& i)
{
return type();
}
};
template <typename I1, typename I2>
struct distance :
mpl::distance<
typename I1::iterator_type
, typename I2::iterator_type>
{
typedef typename
mpl::distance<
typename I1::iterator_type
, typename I2::iterator_type
>::type
type;
static type
call(I1 const&, I2 const&)
{
return type();
}
};
};
}}
#endif