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Diffstat (limited to '3rdParty/Boost/src/boost/fusion/support/tag_of.hpp')
-rw-r--r-- | 3rdParty/Boost/src/boost/fusion/support/tag_of.hpp | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/fusion/support/tag_of.hpp b/3rdParty/Boost/src/boost/fusion/support/tag_of.hpp new file mode 100644 index 0000000..a3fef3b --- /dev/null +++ b/3rdParty/Boost/src/boost/fusion/support/tag_of.hpp @@ -0,0 +1,82 @@ +/*============================================================================= + Copyright (c) 2001-2011 Joel de Guzman + + 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(FUSION_TAG_OF_09232005_0845) +#define FUSION_TAG_OF_09232005_0845 + +#include <boost/utility/enable_if.hpp> +#include <boost/type_traits/remove_const.hpp> +#include <boost/fusion/support/tag_of_fwd.hpp> +#include <boost/fusion/support/detail/is_mpl_sequence.hpp> +#include <boost/mpl/has_xxx.hpp> +#include <boost/mpl/identity.hpp> +#include <boost/mpl/assert.hpp> +#include <boost/mpl/bool.hpp> +#include <boost/mpl/if.hpp> +#include <boost/config/no_tr1/utility.hpp> + +namespace boost +{ + template <typename T, std::size_t N> + class array; // forward + + namespace tuples + { + struct null_type; + + template < + class T0, class T1, class T2, class T3, class T4, + class T5, class T6, class T7, class T8, class T9 + > + class tuple; + + template <class Head, class Tail> + struct cons; + } +} + +namespace boost { namespace fusion +{ + struct non_fusion_tag; + struct mpl_sequence_tag; + + namespace detail + { + BOOST_MPL_HAS_XXX_TRAIT_DEF(fusion_tag) + + template <typename Sequence, typename Active> + struct tag_of_impl + : mpl::if_<fusion::detail::is_mpl_sequence<Sequence>, + mpl::identity<mpl_sequence_tag>, + mpl::identity<non_fusion_tag> >::type + {}; + + template <typename Sequence> + struct tag_of_impl< + Sequence + , typename boost::enable_if<detail::has_fusion_tag<Sequence> >::type> + { + typedef typename Sequence::fusion_tag type; + }; + } + + namespace traits + { + template <typename Sequence, typename Active> + struct tag_of + : boost::fusion::detail::tag_of_impl<Sequence, Active> + {}; + } + + namespace detail + { + template<typename T> + struct tag_of + : traits::tag_of<typename remove_const<T>::type> + {}; + } +}} +#endif |