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/* Copyright 2023 Joaquin M Lopez Munoz.
* 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)
*
* See https://www.boost.org/libs/unordered for library home page.
*/
#ifndef BOOST_UNORDERED_DETAIL_FOA_TUPLE_ROTATE_RIGHT_HPP
#define BOOST_UNORDERED_DETAIL_FOA_TUPLE_ROTATE_RIGHT_HPP
#include <boost/mp11/algorithm.hpp>
#include <boost/mp11/integer_sequence.hpp>
#include <tuple>
#include <utility>
namespace boost{
namespace unordered{
namespace detail{
namespace foa{
template<typename Tuple>
using tuple_rotate_right_return_type=mp11::mp_rotate_right_c<
typename std::remove_cv<typename std::remove_reference<Tuple>::type>::type,
1
>;
template<std::size_t... Is,typename Tuple>
tuple_rotate_right_return_type<Tuple>
tuple_rotate_right_aux(mp11::index_sequence<Is...>,Tuple&& x)
{
return tuple_rotate_right_return_type<Tuple>{
std::get<(Is+sizeof...(Is)-1)%sizeof...(Is)>(std::forward<Tuple>(x))...};
}
template<typename Tuple>
tuple_rotate_right_return_type<Tuple> tuple_rotate_right(Tuple&& x)
{
using RawTuple=typename std::remove_cv<
typename std::remove_reference<Tuple>::type>::type;
return tuple_rotate_right_aux(
mp11::make_index_sequence<std::tuple_size<RawTuple>::value>{},
std::forward<Tuple>(x));
}
} /* namespace foa */
} /* namespace detail */
} /* namespace unordered */
} /* namespace boost */
#endif
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