#ifndef BOOST_BIND_ARG_HPP_INCLUDED | |
#define BOOST_BIND_ARG_HPP_INCLUDED | |
// MS compatible compilers support #pragma once | |
#if defined(_MSC_VER) && (_MSC_VER >= 1020) | |
# pragma once | |
#endif | |
// | |
// bind/arg.hpp | |
// | |
// Copyright (c) 2002 Peter Dimov and Multi Media Ltd. | |
// | |
// 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) | |
// | |
// See http://www.boost.org/libs/bind/bind.html for documentation. | |
// | |
#include <boost/config.hpp> | |
#include <boost/is_placeholder.hpp> | |
namespace boost | |
{ | |
template< int I > struct arg | |
{ | |
arg() | |
{ | |
} | |
template< class T > arg( T const & /* t */ ) | |
{ | |
// static assert I == is_placeholder<T>::value | |
typedef char T_must_be_placeholder[ I == is_placeholder<T>::value? 1: -1 ]; | |
} | |
}; | |
template< int I > bool operator==( arg<I> const &, arg<I> const & ) | |
{ | |
return true; | |
} | |
#if !defined( BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION ) | |
template< int I > struct is_placeholder< arg<I> > | |
{ | |
enum _vt { value = I }; | |
}; | |
template< int I > struct is_placeholder< arg<I> (*) () > | |
{ | |
enum _vt { value = I }; | |
}; | |
#endif | |
} // namespace boost | |
#endif // #ifndef BOOST_BIND_ARG_HPP_INCLUDED |