Chris@16: #ifndef BOOST_BIND_ARG_HPP_INCLUDED
Chris@16: #define BOOST_BIND_ARG_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: //  bind/arg.hpp
Chris@16: //
Chris@16: //  Copyright (c) 2002 Peter Dimov and Multi Media Ltd.
Chris@16: //
Chris@16: // Distributed under the Boost Software License, Version 1.0. (See
Chris@16: // accompanying file LICENSE_1_0.txt or copy at
Chris@16: // http://www.boost.org/LICENSE_1_0.txt)
Chris@16: //
Chris@16: //  See http://www.boost.org/libs/bind/bind.html for documentation.
Chris@16: //
Chris@16: 
Chris@16: #include <boost/config.hpp>
Chris@16: #include <boost/is_placeholder.hpp>
Chris@101: #include <boost/static_assert.hpp>
Chris@16: 
Chris@16: namespace boost
Chris@16: {
Chris@16: 
Chris@16: template< int I > struct arg
Chris@16: {
Chris@16:     arg()
Chris@16:     {
Chris@16:     }
Chris@16: 
Chris@16:     template< class T > arg( T const & /* t */ )
Chris@16:     {
Chris@101:         BOOST_STATIC_ASSERT( I == is_placeholder<T>::value );
Chris@16:     }
Chris@16: };
Chris@16: 
Chris@16: template< int I > bool operator==( arg<I> const &, arg<I> const & )
Chris@16: {
Chris@16:     return true;
Chris@16: }
Chris@16: 
Chris@16: #if !defined( BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION )
Chris@16: 
Chris@16: template< int I > struct is_placeholder< arg<I> >
Chris@16: {
Chris@16:     enum _vt { value = I };
Chris@16: };
Chris@16: 
Chris@16: template< int I > struct is_placeholder< arg<I> (*) () >
Chris@16: {
Chris@16:     enum _vt { value = I };
Chris@16: };
Chris@16: 
Chris@16: #endif
Chris@16: 
Chris@16: } // namespace boost
Chris@16: 
Chris@16: #endif // #ifndef BOOST_BIND_ARG_HPP_INCLUDED