/usr/include/boost/fusion/adapted/std_tuple/detail/at_impl.hpp is in libboost1.55-dev 1.55.0+dfsg-3.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 | /*=============================================================================
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(BOOST_FUSION_AT_IMPL_09242011_1744)
#define BOOST_FUSION_AT_IMPL_09242011_1744
#include <tuple>
#include <utility>
#include <boost/mpl/if.hpp>
#include <boost/fusion/support/detail/access.hpp>
#include <boost/type_traits/remove_const.hpp>
namespace boost { namespace fusion
{
struct std_tuple_tag;
namespace extension
{
template<typename T>
struct at_impl;
template <>
struct at_impl<std_tuple_tag>
{
template <typename Sequence, typename N>
struct apply
{
typedef typename remove_const<Sequence>::type seq_type;
typedef typename std::tuple_element<N::value, seq_type>::type element;
typedef typename
mpl::if_<
is_const<Sequence>
, typename fusion::detail::cref_result<element>::type
, typename fusion::detail::ref_result<element>::type
>::type
type;
static type
call(Sequence& seq)
{
return std::get<N::value>(seq);
}
};
};
}
}}
#endif
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