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boost/mpl/not.hpp


#ifndef BOOST_MPL_NOT_HPP_INCLUDED
#define BOOST_MPL_NOT_HPP_INCLUDED

// + file: boost/mpl/not.hpp
// + last modified: 25/feb/03

// Copyright (c) 2000-03
// Aleksey Gurtovoy
//
// Permission to use, copy, modify, distribute and sell this software
// and its documentation for any purpose is hereby granted without fee, 
// provided that the above copyright notice appears in all copies and 
// that both the copyright notice and this permission notice appear in 
// supporting documentation. No representations are made about the 
// suitability of this software for any purpose. It is provided "as is" 
// without express or implied warranty.
//
// See http://www.boost.org/libs/mpl for documentation.

#include "boost/mpl/bool.hpp"
#include "boost/mpl/aux_/nested_type_wknd.hpp"
#include "boost/mpl/aux_/void_spec.hpp"
#include "boost/mpl/aux_/lambda_support.hpp"

namespace boost {
namespace mpl {

namespace aux {

template< long C_ > // 'long' is intentional here
struct not_impl
    : bool_<!C_>
{
};

} // namespace aux


template<
      typename BOOST_MPL_AUX_VOID_SPEC_PARAM(T)
    >
struct not_
    : aux::not_impl<
          BOOST_MPL_AUX_NESTED_TYPE_WKND(T)::value
        >
{
    BOOST_MPL_AUX_LAMBDA_SUPPORT(1,not_,(T))
};

BOOST_MPL_AUX_VOID_SPEC(1,not_)

} // namespace mpl
} // namespace boost

#endif // BOOST_MPL_NOT_HPP_INCLUDED