prepend.hpp in passenger-6.0.15

- old
+ new

@@ -1,10 +1,10 @@
 //
 // experimental/prepend.hpp
 // ~~~~~~~~~~~~~~~~~~~~~~~~
 //
-// Copyright (c) 2003-2021 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+// Copyright (c) 2003-2022 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)
 //
 
@@ -14,60 +14,25 @@
 #if defined(_MSC_VER) && (_MSC_VER >= 1200)
 # pragma once
 #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
 
 #include <boost/asio/detail/config.hpp>
-#include <tuple>
-#include <boost/asio/detail/type_traits.hpp>
+#include <boost/asio/prepend.hpp>
 
 #include <boost/asio/detail/push_options.hpp>
 
 namespace boost {
 namespace asio {
 namespace experimental {
 
-/// Completion token type used to specify that the completion handler
-/// arguments should be passed additional values before the results of the
-/// operation.
-template <typename CompletionToken, typename... Values>
-class prepend_t
-{
-public:
-  /// Constructor.
-  template <typename T, typename... V>
-  BOOST_ASIO_CONSTEXPR explicit prepend_t(
-      BOOST_ASIO_MOVE_ARG(T) completion_token,
-      BOOST_ASIO_MOVE_ARG(V)... values)
-    : token_(BOOST_ASIO_MOVE_CAST(T)(completion_token)),
-      values_(BOOST_ASIO_MOVE_CAST(V)(values)...)
-  {
-  }
+#if !defined(BOOST_ASIO_NO_DEPRECATED)
+using boost::asio::prepend_t;
+using boost::asio::prepend;
+#endif // !defined(BOOST_ASIO_NO_DEPRECATED)
 
-//private:
-  CompletionToken token_;
-  std::tuple<Values...> values_;
-};
-
-/// Completion token type used to specify that the completion handler
-/// arguments should be passed additional values before the results of the
-/// operation.
-template <typename CompletionToken, typename... Values>
-inline BOOST_ASIO_CONSTEXPR prepend_t<
-  typename decay<CompletionToken>::type, typename decay<Values>::type...>
-prepend(BOOST_ASIO_MOVE_ARG(CompletionToken) completion_token,
-    BOOST_ASIO_MOVE_ARG(Values)... values)
-{
-  return prepend_t<
-    typename decay<CompletionToken>::type, typename decay<Values>::type...>(
-      BOOST_ASIO_MOVE_CAST(CompletionToken)(completion_token),
-      BOOST_ASIO_MOVE_CAST(Values)(values)...);
-}
-
 } // namespace experimental
 } // namespace asio
 } // namespace boost
 
 #include <boost/asio/detail/pop_options.hpp>
-
-#include <boost/asio/experimental/impl/prepend.hpp>
 
 #endif // BOOST_ASIO_EXPERIMENTAL_PREPEND_HPP