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diff --git a/3rdparty/asio/include/asio/traits/set_value_member.hpp b/3rdparty/asio/include/asio/traits/set_value_member.hpp
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+//
+// traits/set_value_member.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2021 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// 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 ASIO_TRAITS_SET_VALUE_MEMBER_HPP
+#define ASIO_TRAITS_SET_VALUE_MEMBER_HPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1200)
+# pragma once
+#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
+
+#include "asio/detail/config.hpp"
+#include "asio/detail/type_traits.hpp"
+#include "asio/detail/variadic_templates.hpp"
+
+#if defined(ASIO_HAS_DECLTYPE) \
+ && defined(ASIO_HAS_NOEXCEPT) \
+ && defined(ASIO_HAS_WORKING_EXPRESSION_SFINAE)
+# define ASIO_HAS_DEDUCED_SET_VALUE_MEMBER_TRAIT 1
+#endif // defined(ASIO_HAS_DECLTYPE)
+ // && defined(ASIO_HAS_NOEXCEPT)
+ // && defined(ASIO_HAS_WORKING_EXPRESSION_SFINAE)
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace traits {
+
+template <typename T, typename Vs, typename = void>
+struct set_value_member_default;
+
+template <typename T, typename Vs, typename = void>
+struct set_value_member;
+
+} // namespace traits
+namespace detail {
+
+struct no_set_value_member
+{
+ ASIO_STATIC_CONSTEXPR(bool, is_valid = false);
+ ASIO_STATIC_CONSTEXPR(bool, is_noexcept = false);
+};
+
+#if defined(ASIO_HAS_DEDUCED_SET_VALUE_MEMBER_TRAIT)
+
+template <typename T, typename Vs, typename = void>
+struct set_value_member_trait : no_set_value_member
+{
+};
+
+#if defined(ASIO_HAS_VARIADIC_TEMPLATES)
+
+template <typename T, typename... Vs>
+struct set_value_member_trait<T, void(Vs...),
+ typename void_type<
+ decltype(declval<T>().set_value(declval<Vs>()...))
+ >::type>
+{
+ ASIO_STATIC_CONSTEXPR(bool, is_valid = true);
+
+ using result_type = decltype(
+ declval<T>().set_value(declval<Vs>()...));
+
+ ASIO_STATIC_CONSTEXPR(bool, is_noexcept = noexcept(
+ declval<T>().set_value(declval<Vs>()...)));
+};
+
+#else // defined(ASIO_HAS_VARIADIC_TEMPLATES)
+
+template <typename T>
+struct set_value_member_trait<T, void(),
+ typename void_type<
+ decltype(declval<T>().set_value())
+ >::type>
+{
+ ASIO_STATIC_CONSTEXPR(bool, is_valid = true);
+
+ using result_type = decltype(declval<T>().set_value());
+
+ ASIO_STATIC_CONSTEXPR(bool,
+ is_noexcept = noexcept(declval<T>().set_value()));
+};
+
+#define ASIO_PRIVATE_SET_VALUE_MEMBER_TRAIT_DEF(n) \
+ template <typename T, ASIO_VARIADIC_TPARAMS(n)> \
+ struct set_value_member_trait<T, void(ASIO_VARIADIC_TARGS(n)), \
+ typename void_type< \
+ decltype(declval<T>().set_value(ASIO_VARIADIC_DECLVAL(n))) \
+ >::type> \
+ { \
+ ASIO_STATIC_CONSTEXPR(bool, is_valid = true); \
+ \
+ using result_type = decltype( \
+ declval<T>().set_value(ASIO_VARIADIC_DECLVAL(n))); \
+ \
+ ASIO_STATIC_CONSTEXPR(bool, is_noexcept = noexcept( \
+ declval<T>().set_value(ASIO_VARIADIC_DECLVAL(n)))); \
+ }; \
+ /**/
+ASIO_VARIADIC_GENERATE(ASIO_PRIVATE_SET_VALUE_MEMBER_TRAIT_DEF)
+#undef ASIO_PRIVATE_SET_VALUE_MEMBER_TRAIT_DEF
+
+#endif // defined(ASIO_HAS_VARIADIC_TEMPLATES)
+
+#else // defined(ASIO_HAS_DEDUCED_SET_VALUE_MEMBER_TRAIT)
+
+template <typename T, typename Vs, typename = void>
+struct set_value_member_trait;
+
+#if defined(ASIO_HAS_VARIADIC_TEMPLATES)
+
+template <typename T, typename... Vs>
+struct set_value_member_trait<T, void(Vs...)> :
+ conditional<
+ is_same<T, typename remove_reference<T>::type>::value
+ && conjunction<is_same<Vs, typename decay<Vs>::type>...>::value,
+ typename conditional<
+ is_same<T, typename add_const<T>::type>::value,
+ no_set_value_member,
+ traits::set_value_member<typename add_const<T>::type, void(Vs...)>
+ >::type,
+ traits::set_value_member<
+ typename remove_reference<T>::type,
+ void(typename decay<Vs>::type...)>
+ >::type
+{
+};
+
+#else // defined(ASIO_HAS_VARIADIC_TEMPLATES)
+
+template <typename T>
+struct set_value_member_trait<T, void()> :
+ conditional<
+ is_same<T, typename remove_reference<T>::type>::value,
+ typename conditional<
+ is_same<T, typename add_const<T>::type>::value,
+ no_set_value_member,
+ traits::set_value_member<typename add_const<T>::type, void()>
+ >::type,
+ traits::set_value_member<typename remove_reference<T>::type, void()>
+ >::type
+{
+};
+
+#define ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME(n) \
+ ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_##n
+
+#define ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_1 \
+ && is_same<T1, typename decay<T1>::type>::value
+#define ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_2 \
+ ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_1 \
+ && is_same<T2, typename decay<T2>::type>::value
+#define ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_3 \
+ ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_2 \
+ && is_same<T3, typename decay<T3>::type>::value
+#define ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_4 \
+ ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_3 \
+ && is_same<T4, typename decay<T4>::type>::value
+#define ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_5 \
+ ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_4 \
+ && is_same<T5, typename decay<T5>::type>::value
+#define ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_6 \
+ ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_5 \
+ && is_same<T6, typename decay<T6>::type>::value
+#define ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_7 \
+ ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_6 \
+ && is_same<T7, typename decay<T7>::type>::value
+#define ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_8 \
+ ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_7 \
+ && is_same<T8, typename decay<T8>::type>::value
+
+#define ASIO_PRIVATE_SET_VALUE_MEMBER_TRAIT_DEF(n) \
+ template <typename T, ASIO_VARIADIC_TPARAMS(n)> \
+ struct set_value_member_trait<T, void(ASIO_VARIADIC_TARGS(n))> : \
+ conditional< \
+ is_same<T, typename remove_reference<T>::type>::value \
+ ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME(n), \
+ typename conditional< \
+ is_same<T, typename add_const<T>::type>::value, \
+ no_set_value_member, \
+ traits::set_value_member< \
+ typename add_const<T>::type, \
+ void(ASIO_VARIADIC_TARGS(n))> \
+ >::type, \
+ traits::set_value_member< \
+ typename remove_reference<T>::type, \
+ void(ASIO_VARIADIC_DECAY(n))> \
+ >::type \
+ { \
+ }; \
+ /**/
+ASIO_VARIADIC_GENERATE(ASIO_PRIVATE_SET_VALUE_MEMBER_TRAIT_DEF)
+#undef ASIO_PRIVATE_SET_VALUE_MEMBER_TRAIT_DEF
+#undef ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME
+#undef ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_1
+#undef ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_2
+#undef ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_3
+#undef ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_4
+#undef ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_5
+#undef ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_6
+#undef ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_7
+#undef ASIO_PRIVATE_SET_VALUE_MEMBER_IS_SAME_8
+
+#endif // defined(ASIO_HAS_VARIADIC_TEMPLATES)
+
+#endif // defined(ASIO_HAS_DEDUCED_SET_VALUE_MEMBER_TRAIT)
+
+} // namespace detail
+namespace traits {
+
+template <typename T, typename Vs, typename>
+struct set_value_member_default :
+ detail::set_value_member_trait<T, Vs>
+{
+};
+
+template <typename T, typename Vs, typename>
+struct set_value_member :
+ set_value_member_default<T, Vs>
+{
+};
+
+} // namespace traits
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_TRAITS_SET_VALUE_MEMBER_HPP