import quincy beta 17.1.0

[ceph.git] / ceph / src / boost / boost / asio / traits / connect_member.hpp

diff --git a/ceph/src/boost/boost/asio/traits/connect_member.hpp b/ceph/src/boost/boost/asio/traits/connect_member.hpp
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+++ b/ceph/src/boost/boost/asio/traits/connect_member.hpp
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+//
+// traits/connect_member.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2020 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_CONNECT_MEMBER_HPP
+#define BOOST_ASIO_TRAITS_CONNECT_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_CONNECT_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 S, typename R, typename = void>
+struct connect_member_default;
+
+template <typename S, typename R, typename = void>
+struct connect_member;
+
+} // namespace traits
+namespace detail {
+
+struct no_connect_member
+{
+  BOOST_ASIO_STATIC_CONSTEXPR(bool, is_valid = false);
+  BOOST_ASIO_STATIC_CONSTEXPR(bool, is_noexcept = false);
+};
+
+#if defined(BOOST_ASIO_HAS_DEDUCED_CONNECT_MEMBER_TRAIT)
+
+template <typename S, typename R, typename = void>
+struct connect_member_trait : no_connect_member
+{
+};
+
+template <typename S, typename R>
+struct connect_member_trait<S, R,
+  typename void_type<
+    decltype(declval<S>().connect(declval<R>()))
+  >::type>
+{
+  BOOST_ASIO_STATIC_CONSTEXPR(bool, is_valid = true);
+
+  using result_type = decltype(
+    declval<S>().connect(declval<R>()));
+
+  BOOST_ASIO_STATIC_CONSTEXPR(bool, is_noexcept = noexcept(
+    declval<S>().connect(declval<R>())));
+};
+
+#else // defined(BOOST_ASIO_HAS_DEDUCED_CONNECT_MEMBER_TRAIT)
+
+template <typename S, typename R, typename = void>
+struct connect_member_trait :
+  conditional<
+    is_same<S, typename remove_reference<S>::type>::value
+      && is_same<R, typename decay<R>::type>::value,
+    typename conditional<
+      is_same<S, typename add_const<S>::type>::value,
+      no_connect_member,
+      traits::connect_member<typename add_const<S>::type, R>
+    >::type,
+    traits::connect_member<
+      typename remove_reference<S>::type,
+      typename decay<R>::type>
+  >::type
+{
+};
+
+#endif // defined(BOOST_ASIO_HAS_DEDUCED_CONNECT_MEMBER_TRAIT)
+
+} // namespace detail
+namespace traits {
+
+template <typename S, typename R, typename>
+struct connect_member_default :
+  detail::connect_member_trait<S, R>
+{
+};
+
+template <typename S, typename R, typename>
+struct connect_member :
+  connect_member_default<S, R>
+{
+};
+
+} // namespace traits
+} // namespace asio
+} // namespace boost
+
+#include <boost/asio/detail/pop_options.hpp>
+
+#endif // BOOST_ASIO_TRAITS_CONNECT_MEMBER_HPP