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refactored to deICE Clang<=3.8 and for clarity

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This commit is contained in:
joaquintides
2023-04-14 10:48:26 +02:00
parent 6bf0e93a41
commit 1723358298
1 changed files with 16 additions and 15 deletions
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31
include/boost/unordered/detail/foa/tuple_rotate_right.hpp
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@ -9,6 +9,7 @@
#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>
@ -18,28 +19,28 @@ 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>
auto tuple_rotate_right_aux(mp11::index_sequence<Is...>,Tuple&& x)
->std::tuple<decltype(
std::get<(Is+sizeof...(Is)-1)%sizeof...(Is)>(std::forward<Tuple>(x)))...
>
tuple_rotate_right_return_type<Tuple>
tuple_rotate_right_aux(mp11::index_sequence<Is...>,Tuple&& x)
{
return std::tuple<decltype(
std::get<(Is+sizeof...(Is)-1)%sizeof...(Is)>(std::forward<Tuple>(x)))...
>
{
std::get<(Is+sizeof...(Is)-1)%sizeof...(Is)>(std::forward<Tuple>(x))...
};
return tuple_rotate_right_return_type<Tuple>{
std::get<(Is+sizeof...(Is)-1)%sizeof...(Is)>(std::forward<Tuple>(x))...};
}
template<typename Tuple>
auto tuple_rotate_right(Tuple&& x)
->decltype(tuple_rotate_right_aux(
mp11::make_index_sequence<std::tuple_size<Tuple>::value>{},
std::forward<Tuple>(x)))
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<Tuple>::value>{},
mp11::make_index_sequence<std::tuple_size<RawTuple>::value>{},
std::forward<Tuple>(x));
}