108 lines
2.5 KiB
C++
108 lines
2.5 KiB
C++
|
//
|
||
|
|
// placeholders.hpp
|
||
|
|
// ~~~~~~~~~~~~~~~~
|
||
|
|
//
|
||
|
|
// Copyright (c) 2003-2008 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_PLACEHOLDERS_HPP
|
||
|
|
#define ASIO_PLACEHOLDERS_HPP
|
||
|
|
|
||
|
|
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
|
||
|
|
# pragma once
|
||
|
|
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
|
||
|
|
|
||
|
|
#include "asio/detail/push_options.hpp"
|
||
|
|
|
||
|
|
#include "asio/detail/push_options.hpp"
|
||
|
|
#include <boost/bind/arg.hpp>
|
||
|
|
#include <boost/detail/workaround.hpp>
|
||
|
|
#include "asio/detail/pop_options.hpp"
|
||
|
|
|
||
|
|
namespace asio {
|
||
|
|
namespace placeholders {
|
||
|
|
|
||
|
|
#if defined(GENERATING_DOCUMENTATION)
|
||
|
|
|
||
|
|
/// An argument placeholder, for use with boost::bind(), that corresponds to
|
||
|
|
/// the error argument of a handler for any of the asynchronous functions.
|
||
|
|
unspecified error;
|
||
|
|
|
||
|
|
/// An argument placeholder, for use with boost::bind(), that corresponds to
|
||
|
|
/// the bytes_transferred argument of a handler for asynchronous functions such
|
||
|
|
/// as asio::basic_stream_socket::async_write_some or
|
||
|
|
/// asio::async_write.
|
||
|
|
unspecified bytes_transferred;
|
||
|
|
|
||
|
|
/// An argument placeholder, for use with boost::bind(), that corresponds to
|
||
|
|
/// the iterator argument of a handler for asynchronous functions such as
|
||
|
|
/// asio::basic_resolver::resolve.
|
||
|
|
unspecified iterator;
|
||
|
|
|
||
|
|
#elif defined(__BORLANDC__) || defined(__GNUC__)
|
||
|
|
|
||
|
|
inline boost::arg<1> error()
|
||
|
|
{
|
||
|
|
return boost::arg<1>();
|
||
|
|
}
|
||
|
|
|
||
|
|
inline boost::arg<2> bytes_transferred()
|
||
|
|
{
|
||
|
|
return boost::arg<2>();
|
||
|
|
}
|
||
|
|
|
||
|
|
inline boost::arg<2> iterator()
|
||
|
|
{
|
||
|
|
return boost::arg<2>();
|
||
|
|
}
|
||
|
|
|
||
|
|
#else
|
||
|
|
|
||
|
|
namespace detail
|
||
|
|
{
|
||
|
|
template <int Number>
|
||
|
|
struct placeholder
|
||
|
|
{
|
||
|
|
static boost::arg<Number>& get()
|
||
|
|
{
|
||
|
|
static boost::arg<Number> result;
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
#if BOOST_WORKAROUND(BOOST_MSVC, < 1400)
|
||
|
|
|
||
|
|
static boost::arg<1>& error
|
||
|
|
= asio::placeholders::detail::placeholder<1>::get();
|
||
|
|
static boost::arg<2>& bytes_transferred
|
||
|
|
= asio::placeholders::detail::placeholder<2>::get();
|
||
|
|
static boost::arg<2>& iterator
|
||
|
|
= asio::placeholders::detail::placeholder<2>::get();
|
||
|
|
|
||
|
|
#else
|
||
|
|
|
||
|
|
namespace
|
||
|
|
{
|
||
|
|
boost::arg<1>& error
|
||
|
|
= asio::placeholders::detail::placeholder<1>::get();
|
||
|
|
boost::arg<2>& bytes_transferred
|
||
|
|
= asio::placeholders::detail::placeholder<2>::get();
|
||
|
|
boost::arg<2>& iterator
|
||
|
|
= asio::placeholders::detail::placeholder<2>::get();
|
||
|
|
} // namespace
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
} // namespace placeholders
|
||
|
|
} // namespace asio
|
||
|
|
|
||
|
|
#include "asio/detail/pop_options.hpp"
|
||
|
|
|
||
|
|
#endif // ASIO_PLACEHOLDERS_HPP
|