48 lines
1.4 KiB
Plaintext
48 lines
1.4 KiB
Plaintext
/*=============================================================================
|
|
Copyright (c) 2001-2011 Joel de Guzman
|
|
Copyright (c) 2005-2006 Dan Marsden
|
|
|
|
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(BOOST_FUSION_BEGIN_IMPL_31122005_1209)
|
|
#define BOOST_FUSION_BEGIN_IMPL_31122005_1209
|
|
|
|
#include <boost/fusion/support/config.hpp>
|
|
#include <boost/fusion/adapted/mpl/mpl_iterator.hpp>
|
|
#include <boost/mpl/begin.hpp>
|
|
#include <boost/type_traits/remove_const.hpp>
|
|
|
|
namespace boost { namespace fusion {
|
|
|
|
struct mpl_sequence_tag;
|
|
|
|
namespace extension
|
|
{
|
|
template <typename Tag>
|
|
struct begin_impl;
|
|
|
|
template <>
|
|
struct begin_impl<mpl_sequence_tag>
|
|
{
|
|
template <typename Sequence>
|
|
struct apply
|
|
{
|
|
typedef typename mpl::begin<
|
|
typename remove_const<Sequence>::type
|
|
>::type iterator;
|
|
typedef mpl_iterator<iterator> type;
|
|
|
|
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
|
|
static type
|
|
call(Sequence)
|
|
{
|
|
return type();
|
|
}
|
|
};
|
|
};
|
|
}
|
|
}}
|
|
|
|
#endif
|