boost/mpl/vector/aux_/iterator.hpp
#ifndef BOOST_MPL_AUX_VECTOR_ITERATOR_HPP_INCLUDED
#define BOOST_MPL_AUX_VECTOR_ITERATOR_HPP_INCLUDED
// + file: boost/mpl/aux_/vector/iterator.hpp
// + last modified: 30/may/03
// Copyright (c) 2000-03
// Aleksey Gurtovoy
//
// Permission to use, copy, modify, distribute and sell this software
// and its documentation for any purpose is hereby granted without fee,
// provided that the above copyright notice appears in all copies and
// that both the copyright notice and this permission notice appear in
// supporting documentation. No representations are made about the
// suitability of this software for any purpose. It is provided "as is"
// without express or implied warranty.
//
// See http://www.boost.org/libs/mpl for documentation.
#include "boost/mpl/iterator_tag.hpp"
#include "boost/mpl/plus.hpp"
#include "boost/mpl/minus.hpp"
#include "boost/mpl/vector/aux_/item.hpp"
#include "boost/mpl/aux_/iterator_names.hpp"
#include "boost/mpl/aux_/value_wknd.hpp"
#include "boost/mpl/aux_/config/workaround.hpp"
namespace boost {
namespace mpl {
template<
typename Vector
, typename Pos
>
struct vector_iterator
{
typedef ra_iter_tag_ category;
typedef typename vector_item<
Vector
, BOOST_MPL_AUX_VALUE_WKND(Pos)::value
>::type type;
typedef Pos pos;
typedef vector_iterator<Vector,typename Pos::next> next;
typedef vector_iterator<Vector,typename Pos::prior> prior;
template< typename Distance >
struct BOOST_MPL_AUX_ITERATOR_ADVANCE
{
typedef vector_iterator<
Vector
, typename plus<Pos,Distance>::type
> type;
};
template< typename Other >
struct BOOST_MPL_AUX_ITERATOR_DISTANCE
#if !BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564))
: minus<typename Other::pos,Pos>
{
#else
{
typedef typename minus<typename Other::pos,Pos>::type type;
BOOST_STATIC_CONSTANT(typename Pos::value_type
, value = (minus<typename Other::pos,Pos>::value));
#endif
};
};
} // namespace mpl
} // namespace boost
#endif // BOOST_MPL_AUX_VECTOR_ITERATOR_HPP_INCLUDED