diff options
Diffstat (limited to 'src/third_party/boost-1.60.0/boost/fusion/container/vector/detail/value_at_impl.hpp')
-rw-r--r-- | src/third_party/boost-1.60.0/boost/fusion/container/vector/detail/value_at_impl.hpp | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/src/third_party/boost-1.60.0/boost/fusion/container/vector/detail/value_at_impl.hpp b/src/third_party/boost-1.60.0/boost/fusion/container/vector/detail/value_at_impl.hpp new file mode 100644 index 00000000000..6c8c41fb273 --- /dev/null +++ b/src/third_party/boost-1.60.0/boost/fusion/container/vector/detail/value_at_impl.hpp @@ -0,0 +1,58 @@ +/*============================================================================= + Copyright (c) 2014 Kohei Takahashi + + 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) +==============================================================================*/ +#ifndef FUSION_VALUE_AT_IMPL_16122014_1641 +#define FUSION_VALUE_AT_IMPL_16122014_1641 + +#include <boost/config.hpp> +#include <boost/fusion/support/config.hpp> +#include <boost/fusion/container/vector/detail/config.hpp> + +/////////////////////////////////////////////////////////////////////////////// +// Without variadics, we will use the PP version +/////////////////////////////////////////////////////////////////////////////// +#if !defined(BOOST_FUSION_HAS_VARIADIC_VECTOR) +# include <boost/fusion/container/vector/detail/cpp03/value_at_impl.hpp> +#else + +/////////////////////////////////////////////////////////////////////////////// +// C++11 interface +/////////////////////////////////////////////////////////////////////////////// +#include <boost/fusion/container/vector/vector_fwd.hpp> +#include <boost/type_traits/declval.hpp> +#include <boost/type_traits/remove_cv.hpp> + +namespace boost { namespace fusion +{ + struct vector_tag; + + namespace vector_detail + { + template <typename I, typename ...T> + struct vector_data; + } + + namespace extension + { + template <typename Tag> + struct value_at_impl; + + template <> + struct value_at_impl<vector_tag> + { + template <typename Sequence, typename N> + struct apply + { + typedef typename boost::remove_cv<Sequence>::type seq; + typedef typename mpl::identity<decltype(seq::template value_at_impl<N::value>(boost::declval<seq*>()))>::type::type type; + }; + }; + } +}} + +#endif +#endif + |