0b6a182c
 Hu Chunming
添加无鉴权注册和注销
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// Copyright (c) 2016-2022 Antony Polukhin
//
// 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)
#ifndef BOOST_PFR_DETAIL_STDTUPLE_HPP
#define BOOST_PFR_DETAIL_STDTUPLE_HPP
#pragma once
#include <boost/pfr/detail/config.hpp>
#include <utility> // metaprogramming stuff
#include <tuple>
#include <boost/pfr/detail/sequence_tuple.hpp>
namespace boost { namespace pfr { namespace detail {
template <class T, std::size_t... I>
constexpr auto make_stdtuple_from_tietuple(const T& t, std::index_sequence<I...>) noexcept {
return std::make_tuple(
boost::pfr::detail::sequence_tuple::get<I>(t)...
);
}
template <class T, std::size_t... I>
constexpr auto make_stdtiedtuple_from_tietuple(const T& t, std::index_sequence<I...>) noexcept {
return std::tie(
boost::pfr::detail::sequence_tuple::get<I>(t)...
);
}
template <class T, std::size_t... I>
constexpr auto make_conststdtiedtuple_from_tietuple(const T& t, std::index_sequence<I...>) noexcept {
return std::tuple<
std::add_lvalue_reference_t<std::add_const_t<
std::remove_reference_t<decltype(boost::pfr::detail::sequence_tuple::get<I>(t))>
>>...
>(
boost::pfr::detail::sequence_tuple::get<I>(t)...
);
}
}}} // namespace boost::pfr::detail
#endif // BOOST_PFR_DETAIL_STDTUPLE_HPP
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