boost/mpl/not.hpp

0001
0002 #ifndef BOOST_MPL_NOT_HPP_INCLUDED
0003 #define BOOST_MPL_NOT_HPP_INCLUDED
0004
0005 // Copyright Aleksey Gurtovoy 2000-2004
0006 //
0007 // Distributed under the Boost Software License, Version 1.0.
0008 // (See accompanying file LICENSE_1_0.txt or copy at
0009 // http://www.boost.org/LICENSE_1_0.txt)
0010 //
0011 // See http://www.boost.org/libs/mpl for documentation.
0012
0013 // $Id$
0014 // $Date$
0015 // $Revision$
0016
0017 #include <boost/mpl/bool.hpp>
0018 #include <boost/mpl/aux_/nttp_decl.hpp>
0019 #include <boost/mpl/aux_/nested_type_wknd.hpp>
0020 #include <boost/mpl/aux_/na_spec.hpp>
0021 #include <boost/mpl/aux_/lambda_support.hpp>
0022
0023 namespace boost { namespace mpl {
0024
0025 namespace aux {
0026
0027 template< BOOST_MPL_AUX_NTTP_DECL(long, C_) > // 'long' is intentional here
0028 struct not_impl
0029     : bool_<!C_>
0030 {
0031 };
0032
0033 } // namespace aux
0034
0035
0036 template<
0037       typename BOOST_MPL_AUX_NA_PARAM(T)
0038     >
0039 struct not_
0040     : aux::not_impl<
0041           BOOST_MPL_AUX_NESTED_TYPE_WKND(T)::value
0042         >
0043 {
0044     BOOST_MPL_AUX_LAMBDA_SUPPORT(1,not_,(T))
0045 };
0046
0047 BOOST_MPL_AUX_NA_SPEC(1,not_)
0048
0049 }}
0050
0051 #endif // BOOST_MPL_NOT_HPP_INCLUDED