Chris@16: #ifndef BOOST_IS_PLACEHOLDER_HPP_INCLUDED
Chris@16: #define BOOST_IS_PLACEHOLDER_HPP_INCLUDED
Chris@16: 
Chris@16: // MS compatible compilers support #pragma once
Chris@16: 
Chris@16: #if defined( _MSC_VER ) && ( _MSC_VER >= 1020 )
Chris@16: # pragma once
Chris@16: #endif
Chris@16: 
Chris@16: 
Chris@16: //  is_placeholder.hpp - TR1 is_placeholder metafunction
Chris@16: //
Chris@16: //  Copyright (c) 2006 Peter Dimov
Chris@16: //
Chris@16: //  Distributed under the Boost Software License, Version 1.0.
Chris@16: //
Chris@16: //  See accompanying file LICENSE_1_0.txt or copy at
Chris@16: //  http://www.boost.org/LICENSE_1_0.txt
Chris@16: 
Chris@16: 
Chris@16: namespace boost
Chris@16: {
Chris@16: 
Chris@16: template< class T > struct is_placeholder
Chris@16: {
Chris@16:     enum _vt { value = 0 };
Chris@16: };
Chris@16: 
Chris@16: } // namespace boost
Chris@16: 
Chris@16: #endif // #ifndef BOOST_IS_PLACEHOLDER_HPP_INCLUDED