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Diffstat (limited to 'boost/asio/handler_type.hpp')
-rw-r--r-- | boost/asio/handler_type.hpp | 52 |
1 files changed, 0 insertions, 52 deletions
diff --git a/boost/asio/handler_type.hpp b/boost/asio/handler_type.hpp deleted file mode 100644 index 0c43189338..0000000000 --- a/boost/asio/handler_type.hpp +++ /dev/null @@ -1,52 +0,0 @@ -// -// handler_type.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 BOOST_ASIO_HANDLER_TYPE_HPP -#define BOOST_ASIO_HANDLER_TYPE_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> - -#include <boost/asio/detail/push_options.hpp> - -namespace boost { -namespace asio { - -/// (Deprecated: Use two-parameter version of async_result.) Default handler -/// type traits provided for all completion token types. -/** - * The handler_type traits class is used for determining the concrete handler - * type to be used for an asynchronous operation. It allows the handler type to - * be determined at the point where the specific completion handler signature - * is known. - * - * This template may be specialised for user-defined completion token types. - */ -template <typename CompletionToken, typename Signature, typename = void> -struct handler_type -{ - /// The handler type for the specific signature. - typedef typename conditional< - is_same<CompletionToken, typename decay<CompletionToken>::type>::value, - decay<CompletionToken>, - handler_type<typename decay<CompletionToken>::type, Signature> - >::type::type type; -}; - -} // namespace asio -} // namespace boost - -#include <boost/asio/detail/pop_options.hpp> - -#endif // BOOST_ASIO_HANDLER_TYPE_HPP |