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author | Anas Nashif <anas.nashif@intel.com> | 2012-10-30 12:57:26 -0700 |
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committer | Anas Nashif <anas.nashif@intel.com> | 2012-10-30 12:57:26 -0700 |
commit | 1a78a62555be32868418fe52f8e330c9d0f95d5a (patch) | |
tree | d3765a80e7d3b9640ec2e930743630cd6b9fce2b /boost/fusion/container/vector/detail/at_impl.hpp | |
download | boost-1a78a62555be32868418fe52f8e330c9d0f95d5a.tar.gz boost-1a78a62555be32868418fe52f8e330c9d0f95d5a.tar.bz2 boost-1a78a62555be32868418fe52f8e330c9d0f95d5a.zip |
Imported Upstream version 1.49.0upstream/1.49.0
Diffstat (limited to 'boost/fusion/container/vector/detail/at_impl.hpp')
-rw-r--r-- | boost/fusion/container/vector/detail/at_impl.hpp | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/boost/fusion/container/vector/detail/at_impl.hpp b/boost/fusion/container/vector/detail/at_impl.hpp new file mode 100644 index 0000000000..0a006dc33d --- /dev/null +++ b/boost/fusion/container/vector/detail/at_impl.hpp @@ -0,0 +1,56 @@ +/*============================================================================= + 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_AT_IMPL_05042005_0741) +#define FUSION_AT_IMPL_05042005_0741 + +#include <boost/fusion/support/detail/access.hpp> +#include <boost/type_traits/is_const.hpp> +#include <boost/mpl/at.hpp> +#include <boost/mpl/int.hpp> + +namespace boost { namespace fusion +{ + struct vector_tag; + + namespace extension + { + template <typename Tag> + struct at_impl; + + template <> + struct at_impl<vector_tag> + { + template <typename Sequence, typename N> + struct apply + { + typedef mpl::at<typename Sequence::types, N> element; + typedef typename detail::ref_result<element>::type type; + + static type + call(Sequence& v) + { + return v.at_impl(N()); + } + }; + + template <typename Sequence, typename N> + struct apply <Sequence const, N> + { + typedef mpl::at<typename Sequence::types, N> element; + typedef typename detail::cref_result<element>::type type; + + static type + call(Sequence const& v) + { + return v.at_impl(N()); + } + }; + }; + } +}} + +#endif |