99 lines
2.3 KiB
Plaintext
99 lines
2.3 KiB
Plaintext
|
|
#ifndef BOOST_MPL_SET_AUX_ITERATOR_HPP_INCLUDED
|
|
#define BOOST_MPL_SET_AUX_ITERATOR_HPP_INCLUDED
|
|
|
|
// Copyright Aleksey Gurtovoy 2003-2007
|
|
// Copyright David Abrahams 2003-2004
|
|
//
|
|
// 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.
|
|
|
|
// $Id$
|
|
// $Date$
|
|
// $Revision$
|
|
|
|
#include <boost/mpl/set/aux_/set0.hpp>
|
|
#include <boost/mpl/has_key.hpp>
|
|
#include <boost/mpl/iterator_tags.hpp>
|
|
#include <boost/mpl/next.hpp>
|
|
#include <boost/mpl/eval_if.hpp>
|
|
#include <boost/mpl/if.hpp>
|
|
#include <boost/mpl/identity.hpp>
|
|
#include <boost/mpl/aux_/config/ctps.hpp>
|
|
|
|
namespace boost { namespace mpl {
|
|
|
|
// used by 's_iter_get'
|
|
template< typename Set, typename Tail > struct s_iter;
|
|
|
|
template< typename Set, typename Tail > struct s_iter_get
|
|
: eval_if<
|
|
has_key< Set,typename Tail::item_type_ >
|
|
, identity< s_iter<Set,Tail> >
|
|
, next< s_iter<Set,Tail> >
|
|
>
|
|
{
|
|
};
|
|
|
|
template< typename Set, typename Tail > struct s_iter_impl
|
|
{
|
|
typedef Tail tail_;
|
|
typedef forward_iterator_tag category;
|
|
typedef typename Tail::item_type_ type;
|
|
|
|
#if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
|
|
typedef typename s_iter_get< Set,typename Tail::base >::type next;
|
|
#endif
|
|
};
|
|
|
|
#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
|
|
|
|
template< typename Set, typename Tail >
|
|
struct next< s_iter<Set,Tail> >
|
|
: s_iter_get< Set,typename Tail::base >
|
|
{
|
|
};
|
|
|
|
template< typename Set >
|
|
struct next< s_iter<Set,set0<> > >
|
|
{
|
|
typedef s_iter<Set,set0<> > type;
|
|
};
|
|
|
|
template< typename Set, typename Tail > struct s_iter
|
|
: s_iter_impl<Set,Tail>
|
|
{
|
|
};
|
|
|
|
template< typename Set > struct s_iter<Set, set0<> >
|
|
{
|
|
typedef forward_iterator_tag category;
|
|
};
|
|
|
|
#else
|
|
|
|
template< typename Set >
|
|
struct s_end_iter
|
|
{
|
|
typedef forward_iterator_tag category;
|
|
typedef s_iter<Set,set0<> > next;
|
|
};
|
|
|
|
template< typename Set, typename Tail > struct s_iter
|
|
: if_<
|
|
is_same< Tail,set0<> >
|
|
, s_end_iter<Set>
|
|
, s_iter_impl<Set,Tail>
|
|
>::type
|
|
{
|
|
};
|
|
|
|
#endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
|
|
|
|
}}
|
|
|
|
#endif // BOOST_MPL_SET_AUX_ITERATOR_HPP_INCLUDED
|