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48 lines
1.4 KiB
48 lines
1.4 KiB
3 years ago
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/*=============================================================================
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Copyright (c) 2001-2011 Joel de Guzman
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Copyright (c) 2005-2006 Dan Marsden
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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==============================================================================*/
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#if !defined(BOOST_FUSION_BEGIN_IMPL_31122005_1209)
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#define BOOST_FUSION_BEGIN_IMPL_31122005_1209
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#include <boost/fusion/support/config.hpp>
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#include <boost/fusion/adapted/mpl/mpl_iterator.hpp>
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#include <boost/mpl/begin.hpp>
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#include <boost/type_traits/remove_const.hpp>
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namespace boost { namespace fusion {
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struct mpl_sequence_tag;
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namespace extension
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{
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template <typename Tag>
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struct begin_impl;
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template <>
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struct begin_impl<mpl_sequence_tag>
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{
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template <typename Sequence>
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struct apply
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{
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typedef typename mpl::begin<
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typename remove_const<Sequence>::type
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>::type iterator;
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typedef mpl_iterator<iterator> type;
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BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
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static type
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call(Sequence)
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{
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return type();
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}
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};
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};
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}
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}}
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#endif
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