update boost

linx64/include/boost/asio/traits/require_concept_member.hpp

@@ -0,0 +1,110 @@
+//
+// traits/require_concept_member.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2023 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 BOOST_ASIO_TRAITS_REQUIRE_CONCEPT_MEMBER_HPP
+#define BOOST_ASIO_TRAITS_REQUIRE_CONCEPT_MEMBER_HPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1200)
+# pragma once
+#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
+
+#include <boost/asio/detail/config.hpp>
+#include <boost/asio/detail/type_traits.hpp>
+
+#if defined(BOOST_ASIO_HAS_DECLTYPE) \
+  && defined(BOOST_ASIO_HAS_NOEXCEPT) \
+  && defined(BOOST_ASIO_HAS_WORKING_EXPRESSION_SFINAE)
+# define BOOST_ASIO_HAS_DEDUCED_REQUIRE_CONCEPT_MEMBER_TRAIT 1
+#endif // defined(BOOST_ASIO_HAS_DECLTYPE)
+       //   && defined(BOOST_ASIO_HAS_NOEXCEPT)
+       //   && defined(BOOST_ASIO_HAS_WORKING_EXPRESSION_SFINAE)
+
+#include <boost/asio/detail/push_options.hpp>
+
+namespace boost {
+namespace asio {
+namespace traits {
+
+template <typename T, typename Property, typename = void>
+struct require_concept_member_default;
+
+template <typename T, typename Property, typename = void>
+struct require_concept_member;
+
+} // namespace traits
+namespace detail {
+
+struct no_require_concept_member
+{
+  BOOST_ASIO_STATIC_CONSTEXPR(bool, is_valid = false);
+  BOOST_ASIO_STATIC_CONSTEXPR(bool, is_noexcept = false);
+};
+
+#if defined(BOOST_ASIO_HAS_DEDUCED_REQUIRE_CONCEPT_MEMBER_TRAIT)
+
+template <typename T, typename Property, typename = void>
+struct require_concept_member_trait : no_require_concept_member
+{
+};
+
+template <typename T, typename Property>
+struct require_concept_member_trait<T, Property,
+  typename void_type<
+    decltype(declval<T>().require_concept(declval<Property>()))
+  >::type>
+{
+  BOOST_ASIO_STATIC_CONSTEXPR(bool, is_valid = true);
+
+  using result_type = decltype(
+    declval<T>().require_concept(declval<Property>()));
+
+  BOOST_ASIO_STATIC_CONSTEXPR(bool, is_noexcept = noexcept(
+    declval<T>().require_concept(declval<Property>())));
+};
+
+#else // defined(BOOST_ASIO_HAS_DEDUCED_REQUIRE_CONCEPT_MEMBER_TRAIT)
+
+template <typename T, typename Property, typename = void>
+struct require_concept_member_trait :
+  conditional<
+    is_same<T, typename decay<T>::type>::value
+      && is_same<Property, typename decay<Property>::type>::value,
+    no_require_concept_member,
+    traits::require_concept_member<
+      typename decay<T>::type,
+      typename decay<Property>::type>
+  >::type
+{
+};
+
+#endif // defined(BOOST_ASIO_HAS_DEDUCED_REQUIRE_CONCEPT_MEMBER_TRAIT)
+
+} // namespace detail
+namespace traits {
+
+template <typename T, typename Property, typename>
+struct require_concept_member_default :
+  detail::require_concept_member_trait<T, Property>
+{
+};
+
+template <typename T, typename Property, typename>
+struct require_concept_member :
+  require_concept_member_default<T, Property>
+{
+};
+
+} // namespace traits
+} // namespace asio
+} // namespace boost
+
+#include <boost/asio/detail/pop_options.hpp>
+
+#endif // BOOST_ASIO_TRAITS_REQUIRE_CONCEPT_MEMBER_HPP