77 lines
2.1 KiB
C++
77 lines
2.1 KiB
C++
|
|
||
|
#ifndef BOOST_MPL_AUX_ORDER_IMPL_HPP_INCLUDED
|
||
|
#define BOOST_MPL_AUX_ORDER_IMPL_HPP_INCLUDED
|
||
|
|
||
|
// Copyright Aleksey Gurtovoy 2003-2004
|
||
|
// 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: order_impl.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/order_fwd.hpp>
|
||
|
#include <boost/mpl/if.hpp>
|
||
|
#include <boost/mpl/long.hpp>
|
||
|
#include <boost/mpl/has_key.hpp>
|
||
|
#include <boost/mpl/aux_/overload_names.hpp>
|
||
|
#include <boost/mpl/aux_/static_cast.hpp>
|
||
|
#include <boost/mpl/aux_/type_wrapper.hpp>
|
||
|
#include <boost/mpl/aux_/traits_lambda_spec.hpp>
|
||
|
#include <boost/mpl/aux_/config/msvc.hpp>
|
||
|
#include <boost/mpl/aux_/config/static_constant.hpp>
|
||
|
#include <boost/mpl/aux_/config/workaround.hpp>
|
||
|
|
||
|
namespace boost { namespace mpl {
|
||
|
|
||
|
// default implementation; requires 'Seq' to provide corresponding overloads
|
||
|
// of BOOST_MPL_AUX_OVERLOAD_ORDER_BY_KEY
|
||
|
|
||
|
template< typename Seq, typename Key > struct x_order_impl
|
||
|
#if BOOST_WORKAROUND(BOOST_MSVC, BOOST_TESTED_AT(1400)) \
|
||
|
|| BOOST_WORKAROUND(__EDG_VERSION__, <= 245)
|
||
|
{
|
||
|
BOOST_STATIC_CONSTANT(long, value =
|
||
|
sizeof( BOOST_MPL_AUX_OVERLOAD_CALL_ORDER_BY_KEY(
|
||
|
Seq
|
||
|
, BOOST_MPL_AUX_STATIC_CAST(aux::type_wrapper<Key>*, 0)
|
||
|
) )
|
||
|
);
|
||
|
|
||
|
typedef long_<value> type;
|
||
|
|
||
|
#else // ISO98 C++
|
||
|
: long_<
|
||
|
sizeof( BOOST_MPL_AUX_OVERLOAD_CALL_ORDER_BY_KEY(
|
||
|
Seq
|
||
|
, BOOST_MPL_AUX_STATIC_CAST(aux::type_wrapper<Key>*, 0)
|
||
|
) )
|
||
|
>
|
||
|
{
|
||
|
#endif
|
||
|
};
|
||
|
|
||
|
template< typename Tag >
|
||
|
struct order_impl
|
||
|
{
|
||
|
template< typename Seq, typename Key > struct apply
|
||
|
: if_<
|
||
|
typename has_key_impl<Tag>::template apply<Seq,Key>
|
||
|
, x_order_impl<Seq,Key>
|
||
|
, void_
|
||
|
>::type
|
||
|
{
|
||
|
};
|
||
|
};
|
||
|
|
||
|
BOOST_MPL_ALGORITM_TRAITS_LAMBDA_SPEC(2,order_impl)
|
||
|
|
||
|
}}
|
||
|
|
||
|
#endif // BOOST_MPL_AUX_ORDER_IMPL_HPP_INCLUDED
|