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diff --git a/lib/asio/detail/winrt_socket_connect_op.hpp b/lib/asio/detail/winrt_socket_connect_op.hpp
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+//
+// detail/winrt_socket_connect_op.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2018 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_DETAIL_WINRT_SOCKET_CONNECT_OP_HPP
+#define ASIO_DETAIL_WINRT_SOCKET_CONNECT_OP_HPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1200)
+# pragma once
+#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
+
+#include "asio/detail/config.hpp"
+
+#if defined(ASIO_WINDOWS_RUNTIME)
+
+#include "asio/detail/bind_handler.hpp"
+#include "asio/detail/buffer_sequence_adapter.hpp"
+#include "asio/detail/fenced_block.hpp"
+#include "asio/detail/handler_alloc_helpers.hpp"
+#include "asio/detail/handler_invoke_helpers.hpp"
+#include "asio/detail/memory.hpp"
+#include "asio/detail/winrt_async_op.hpp"
+#include "asio/error.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+template <typename Handler>
+class winrt_socket_connect_op :
+ public winrt_async_op<void>
+{
+public:
+ ASIO_DEFINE_HANDLER_PTR(winrt_socket_connect_op);
+
+ winrt_socket_connect_op(Handler& handler)
+ : winrt_async_op<void>(&winrt_socket_connect_op::do_complete),
+ handler_(ASIO_MOVE_CAST(Handler)(handler))
+ {
+ handler_work<Handler>::start(handler_);
+ }
+
+ static void do_complete(void* owner, operation* base,
+ const asio::error_code&, std::size_t)
+ {
+ // Take ownership of the operation object.
+ winrt_socket_connect_op* o(static_cast<winrt_socket_connect_op*>(base));
+ ptr p = { asio::detail::addressof(o->handler_), o, o };
+ handler_work<Handler> w(o->handler_);
+
+ ASIO_HANDLER_COMPLETION((*o));
+
+ // Make a copy of the handler so that the memory can be deallocated before
+ // the upcall is made. Even if we're not about to make an upcall, a
+ // sub-object of the handler may be the true owner of the memory associated
+ // with the handler. Consequently, a local copy of the handler is required
+ // to ensure that any owning sub-object remains valid until after we have
+ // deallocated the memory here.
+ detail::binder1<Handler, asio::error_code>
+ handler(o->handler_, o->ec_);
+ p.h = asio::detail::addressof(handler.handler_);
+ p.reset();
+
+ // Make the upcall if required.
+ if (owner)
+ {
+ fenced_block b(fenced_block::half);
+ ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_));
+ w.complete(handler, handler.handler_);
+ ASIO_HANDLER_INVOCATION_END;
+ }
+ }
+
+private:
+ Handler handler_;
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // defined(ASIO_WINDOWS_RUNTIME)
+
+#endif // ASIO_DETAIL_WINRT_SOCKET_CONNECT_OP_HPP