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Diffstat (limited to '3rdParty/Boost/src/boost/mpl/sequence_tag.hpp')
-rw-r--r-- | 3rdParty/Boost/src/boost/mpl/sequence_tag.hpp | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/mpl/sequence_tag.hpp b/3rdParty/Boost/src/boost/mpl/sequence_tag.hpp new file mode 100644 index 0000000..41450ed --- /dev/null +++ b/3rdParty/Boost/src/boost/mpl/sequence_tag.hpp @@ -0,0 +1,124 @@ + +#ifndef BOOST_MPL_SEQUENCE_TAG_HPP_INCLUDED +#define BOOST_MPL_SEQUENCE_TAG_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: sequence_tag.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/sequence_tag_fwd.hpp> +#include <boost/mpl/aux_/has_tag.hpp> +#include <boost/mpl/aux_/has_begin.hpp> +#include <boost/mpl/aux_/na_spec.hpp> +#include <boost/mpl/aux_/is_msvc_eti_arg.hpp> +#include <boost/mpl/aux_/config/eti.hpp> +#include <boost/mpl/aux_/yes_no.hpp> +#include <boost/mpl/aux_/config/workaround.hpp> + +namespace boost { namespace mpl { + +// agurt, 27/nov/02: have to use a simplistic 'sequence_tag' implementation +// on MSVC to avoid dreadful "internal structure overflow" error +#if BOOST_WORKAROUND(BOOST_MSVC, < 1300) \ + || defined(BOOST_MPL_CFG_NO_HAS_XXX) + +template< + typename BOOST_MPL_AUX_NA_PARAM(Sequence) + > +struct sequence_tag +{ + typedef typename Sequence::tag type; +}; + +#elif BOOST_WORKAROUND(BOOST_MSVC, == 1300) + +// agurt, 07/feb/03: workaround for what seems to be MSVC 7.0-specific ETI issue + +namespace aux { + +template< bool > +struct sequence_tag_impl +{ + template< typename Sequence > struct result_ + { + typedef typename Sequence::tag type; + }; +}; + +template<> +struct sequence_tag_impl<false> +{ + template< typename Sequence > struct result_ + { + typedef int type; + }; +}; + +} // namespace aux + +template< + typename BOOST_MPL_AUX_NA_PARAM(Sequence) + > +struct sequence_tag + : aux::sequence_tag_impl< !aux::is_msvc_eti_arg<Sequence>::value > + ::template result_<Sequence> +{ +}; + +#else + +namespace aux { + +template< bool has_tag_, bool has_begin_ > +struct sequence_tag_impl +{ + // agurt 24/nov/02: MSVC 6.5 gets confused in 'sequence_tag_impl<true>' + // specialization below, if we name it 'result_' here + template< typename Sequence > struct result2_; +}; + +# define AUX_CLASS_SEQUENCE_TAG_SPEC(has_tag, has_begin, result_type) \ +template<> struct sequence_tag_impl<has_tag,has_begin> \ +{ \ + template< typename Sequence > struct result2_ \ + { \ + typedef result_type type; \ + }; \ +}; \ +/**/ + +AUX_CLASS_SEQUENCE_TAG_SPEC(true, true, typename Sequence::tag) +AUX_CLASS_SEQUENCE_TAG_SPEC(true, false, typename Sequence::tag) +AUX_CLASS_SEQUENCE_TAG_SPEC(false, true, nested_begin_end_tag) +AUX_CLASS_SEQUENCE_TAG_SPEC(false, false, non_sequence_tag) + +# undef AUX_CLASS_SEQUENCE_TAG_SPEC + +} // namespace aux + +template< + typename BOOST_MPL_AUX_NA_PARAM(Sequence) + > +struct sequence_tag + : aux::sequence_tag_impl< + ::boost::mpl::aux::has_tag<Sequence>::value + , ::boost::mpl::aux::has_begin<Sequence>::value + >::template result2_<Sequence> +{ +}; + +#endif // BOOST_MSVC + +BOOST_MPL_AUX_NA_SPEC(1, sequence_tag) + +}} + +#endif // BOOST_MPL_SEQUENCE_TAG_HPP_INCLUDED |