projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
1 | /*============================================================================= |
| 2 | Copyright (c) 2001-2011 Joel de Guzman | |
| 3 | Copyright (c) 2005-2006 Dan Marsden | |
| 4 | ||
| 5 | Distributed under the Boost Software License, Version 1.0. (See accompanying | |
| 6 | file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
| 7 | ==============================================================================*/ | |
| 8 | #if !defined(BOOST_FUSION_STD_ARRAY_AT_IMPL_01062013_1700) | |
| 9 | #define BOOST_FUSION_STD_ARRAY_AT_IMPL_01062013_1700 | |
| 10 | ||
| 11 | #include <boost/type_traits/is_const.hpp> | |
| 12 | ||
| 13 | #include <boost/mpl/if.hpp> | |
| 14 | ||
| 15 | namespace boost { namespace fusion { | |
| 16 | ||
| 17 | struct std_array_tag; | |
| 18 | ||
| 19 | namespace extension | |
| 20 | { | |
| 21 | template<typename T> | |
| 22 | struct at_impl; | |
| 23 | ||
| 24 | template<> | |
| 25 | struct at_impl<std_array_tag> | |
| 26 | { | |
| 27 | template<typename Sequence, typename N> | |
| 28 | struct apply | |
| 29 | { | |
| 30 | typedef typename mpl::if_< | |
| 31 | is_const<Sequence>, | |
| 32 | typename Sequence::const_reference, | |
| 33 | typename Sequence::reference>::type type; | |
| 34 | ||
| 35 | static type | |
| 36 | call(Sequence& seq) | |
| 37 | { | |
| 38 | return seq[N::value]; | |
| 39 | } | |
| 40 | }; | |
| 41 | }; | |
| 42 | } | |
| 43 | }} | |
| 44 | ||
| 45 | #endif |