129 lines
3.6 KiB
Plaintext
129 lines
3.6 KiB
Plaintext
|
/*=============================================================================
|
||
|
|
Copyright (c) 2001-2011 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/config.hpp>
|
||
|
|
#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;
|
||
|
|
|
||
|
|
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
|
||
|
|
static type
|
||
|
|
call(Iterator)
|
||
|
|
{
|
||
|
|
return type();
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
template <typename Iterator>
|
||
|
|
struct next
|
||
|
|
{
|
||
|
|
typedef mpl_iterator<
|
||
|
|
typename mpl::next<typename Iterator::iterator_type>::type>
|
||
|
|
type;
|
||
|
|
|
||
|
|
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
|
||
|
|
static type
|
||
|
|
call(Iterator)
|
||
|
|
{
|
||
|
|
return type();
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
template <typename Iterator>
|
||
|
|
struct prior
|
||
|
|
{
|
||
|
|
typedef mpl_iterator<
|
||
|
|
typename mpl::prior<typename Iterator::iterator_type>::type>
|
||
|
|
type;
|
||
|
|
|
||
|
|
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
|
||
|
|
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;
|
||
|
|
|
||
|
|
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
|
||
|
|
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;
|
||
|
|
|
||
|
|
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
|
||
|
|
static type
|
||
|
|
call(I1 const&, I2 const&)
|
||
|
|
{
|
||
|
|
return type();
|
||
|
|
}
|
||
|
|
};
|
||
|
|
};
|
||
|
|
}}
|
||
|
|
|
||
|
|
#ifdef BOOST_FUSION_WORKAROUND_FOR_LWG_2408
|
||
|
|
namespace std
|
||
|
|
{
|
||
|
|
template <typename Iterator>
|
||
|
|
struct iterator_traits< ::boost::fusion::mpl_iterator<Iterator> >
|
||
|
|
{ };
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|