#ifndef BOOST_MPL_VECTOR_AUX_ITEM_HPP_INCLUDED | |
#define BOOST_MPL_VECTOR_AUX_ITEM_HPP_INCLUDED | |
// Copyright Aleksey Gurtovoy 2000-2004 | |
// | |
// 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) | |
// | |
// See http://www.boost.org/libs/mpl for documentation. | |
// $Id: item.hpp 49267 2008-10-11 06:19:02Z agurtovoy $ | |
// $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $ | |
// $Revision: 49267 $ | |
#include <boost/mpl/long.hpp> | |
#include <boost/mpl/void.hpp> | |
#include <boost/mpl/next_prior.hpp> | |
#include <boost/mpl/aux_/type_wrapper.hpp> | |
#include <boost/mpl/aux_/config/typeof.hpp> | |
#include <boost/mpl/aux_/config/ctps.hpp> | |
namespace boost { namespace mpl { | |
#if defined(BOOST_MPL_CFG_TYPEOF_BASED_SEQUENCES) | |
template< | |
typename T | |
, typename Base | |
, int at_front = 0 | |
> | |
struct v_item | |
: Base | |
{ | |
typedef typename Base::upper_bound_ index_; | |
typedef typename next<index_>::type upper_bound_; | |
typedef typename next<typename Base::size>::type size; | |
typedef Base base; | |
typedef v_item type; | |
// agurt 10/sep/04: MWCW <= 9.3 workaround here and below; the compiler | |
// breaks if using declaration comes _before_ the new overload | |
static aux::type_wrapper<T> item_(index_); | |
using Base::item_; | |
}; | |
template< | |
typename T | |
, typename Base | |
> | |
struct v_item<T,Base,1> | |
: Base | |
{ | |
typedef typename prior<typename Base::lower_bound_>::type index_; | |
typedef index_ lower_bound_; | |
typedef typename next<typename Base::size>::type size; | |
typedef Base base; | |
typedef v_item type; | |
static aux::type_wrapper<T> item_(index_); | |
using Base::item_; | |
}; | |
// "erasure" item | |
template< | |
typename Base | |
, int at_front | |
> | |
struct v_mask | |
: Base | |
{ | |
typedef typename prior<typename Base::upper_bound_>::type index_; | |
typedef index_ upper_bound_; | |
typedef typename prior<typename Base::size>::type size; | |
typedef Base base; | |
typedef v_mask type; | |
static aux::type_wrapper<void_> item_(index_); | |
using Base::item_; | |
}; | |
template< | |
typename Base | |
> | |
struct v_mask<Base,1> | |
: Base | |
{ | |
typedef typename Base::lower_bound_ index_; | |
typedef typename next<index_>::type lower_bound_; | |
typedef typename prior<typename Base::size>::type size; | |
typedef Base base; | |
typedef v_mask type; | |
static aux::type_wrapper<void_> item_(index_); | |
using Base::item_; | |
}; | |
#endif // BOOST_MPL_CFG_TYPEOF_BASED_SEQUENCES | |
}} | |
#endif // BOOST_MPL_VECTOR_AUX_ITEM_HPP_INCLUDED |