/Src/Dependencies/Boost/boost/iostreams/detail/enable_if_stream.hpp

 1// (C) Copyright 2008 CodeRage, LLC (turkanis at coderage dot com)
 2// (C) Copyright 2003-2007 Jonathan Turkanis
 3// Distributed under the Boost Software License, Version 1.0. (See accompanying
 4// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt.)
 5
 6// See http://www.boost.org/libs/iostreams for documentation.
 7
 8#ifndef BOOST_IOSTREAMS_DETAIL_ENABLE_IF_STREAM_HPP_INCLUDED
 9#define BOOST_IOSTREAMS_DETAIL_ENABLE_IF_STREAM_HPP_INCLUDED
10
11#if defined(_MSC_VER) && (_MSC_VER >= 1020)
12# pragma once
13#endif              
14
15#include <boost/config.hpp>                // BOOST_NO_SFINAE.
16#include <boost/utility/enable_if.hpp>                  
17#include <boost/iostreams/traits_fwd.hpp>  // is_std_io.
18
19#if !defined(BOOST_NO_SFINAE) && \
20    !BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x592))
21# define BOOST_IOSTREAMS_ENABLE_IF_STREAM(T) \
22    , typename boost::enable_if< boost::iostreams::is_std_io<T> >::type* = 0 \
23    /**/
24# define BOOST_IOSTREAMS_DISABLE_IF_STREAM(T) \
25    , typename boost::disable_if< boost::iostreams::is_std_io<T> >::type* = 0 \
26    /**/
27#else 
28# define BOOST_IOSTREAMS_ENABLE_IF_STREAM(T)
29# define BOOST_IOSTREAMS_DISABLE_IF_STREAM(T)
30#endif
31
32#endif // #ifndef BOOST_IOSTREAMS_DETAIL_ENABLE_IF_STREAM_HPP_INCLUDED