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Contents
//
// redirect_error.hpp
// ~~~~~~~~~~~~~~~~~~
//
// 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)
//
#ifndef BOOST_ASIO_REDIRECT_ERROR_HPP
#define BOOST_ASIO_REDIRECT_ERROR_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/system/error_code.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
/// A @ref completion_token adapter used to specify that an error produced by an
/// asynchronous operation is captured to an error_code variable.
/**
* The redirect_error_t class is used to indicate that any error_code produced
* by an asynchronous operation is captured to a specified variable.
*/
template <typename CompletionToken>
class redirect_error_t
{
public:
/// Constructor.
template <typename T>
redirect_error_t(BOOST_ASIO_MOVE_ARG(T) completion_token,
boost::system::error_code& ec)
: token_(BOOST_ASIO_MOVE_CAST(T)(completion_token)),
ec_(ec)
{
}
//private:
CompletionToken token_;
boost::system::error_code& ec_;
};
/// Adapt a @ref completion_token to capture error_code values to a variable.
template <typename CompletionToken>
inline redirect_error_t<typename decay<CompletionToken>::type> redirect_error(
BOOST_ASIO_MOVE_ARG(CompletionToken) completion_token,
boost::system::error_code& ec)
{
return redirect_error_t<typename decay<CompletionToken>::type>(
BOOST_ASIO_MOVE_CAST(CompletionToken)(completion_token), ec);
}
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#include <boost/asio/impl/redirect_error.hpp>
#endif // BOOST_ASIO_REDIRECT_ERROR_HPP
Version data entries
5 entries across 5 versions & 1 rubygems