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Edit File: arg.hpp

#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<bool Eq> struct _arg_eq
{
};

template<> struct _arg_eq<true>
{
 typedef void type;
};

template< int I > struct arg
{
 BOOST_CONSTEXPR arg()
 {
 }

template< class T > BOOST_CONSTEXPR arg( T const & /* t */, typename _arg_eq::value >::type * = 0 )
 {
 }
};

template< int I > BOOST_CONSTEXPR bool operator==( arg const &, arg const & )
{
 return true;
}

#if !defined( BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION )

template< int I > struct is_placeholder< arg >
{
 enum _vt { value = I };
};

template< int I > struct is_placeholder< arg (*) () >
{
 enum _vt { value = I };
};

#endif

} // namespace boost

#endif // #ifndef BOOST_BIND_ARG_HPP_INCLUDED