epoc32/include/stdapis/boost/mpl/aux_/na.hpp
branchSymbian2
changeset 2 2fe1408b6811
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/epoc32/include/stdapis/boost/mpl/aux_/na.hpp	Tue Mar 16 16:12:26 2010 +0000
     1.3 @@ -0,0 +1,95 @@
     1.4 +
     1.5 +#ifndef BOOST_MPL_AUX_NA_HPP_INCLUDED
     1.6 +#define BOOST_MPL_AUX_NA_HPP_INCLUDED
     1.7 +
     1.8 +// Copyright Aleksey Gurtovoy 2001-2004
     1.9 +//
    1.10 +// Distributed under the Boost Software License, Version 1.0. 
    1.11 +// (See accompanying file LICENSE_1_0.txt or copy at 
    1.12 +// http://www.boost.org/LICENSE_1_0.txt)
    1.13 +//
    1.14 +// See http://www.boost.org/libs/mpl for documentation.
    1.15 +
    1.16 +// $Source: /cvsroot/boost/boost/boost/mpl/aux_/na.hpp,v $
    1.17 +// $Date: 2004/11/28 01:37:30 $
    1.18 +// $Revision: 1.6 $
    1.19 +
    1.20 +#include <boost/mpl/bool.hpp>
    1.21 +#include <boost/mpl/aux_/na_fwd.hpp>
    1.22 +#include <boost/mpl/aux_/config/msvc.hpp>
    1.23 +#include <boost/mpl/aux_/config/ctps.hpp>
    1.24 +
    1.25 +namespace boost { namespace mpl {
    1.26 +
    1.27 +template< typename T >
    1.28 +struct is_na
    1.29 +    : false_
    1.30 +{
    1.31 +#if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
    1.32 +    using false_::value;
    1.33 +#endif
    1.34 +};
    1.35 +
    1.36 +template<>
    1.37 +struct is_na<na>
    1.38 +    : true_
    1.39 +{
    1.40 +#if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
    1.41 +    using true_::value;
    1.42 +#endif
    1.43 +};
    1.44 +
    1.45 +template< typename T >
    1.46 +struct is_not_na
    1.47 +    : true_
    1.48 +{
    1.49 +#if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
    1.50 +    using true_::value;
    1.51 +#endif
    1.52 +};
    1.53 +
    1.54 +template<>
    1.55 +struct is_not_na<na>
    1.56 +    : false_
    1.57 +{
    1.58 +#if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
    1.59 +    using false_::value;
    1.60 +#endif
    1.61 +};
    1.62 +
    1.63 +#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
    1.64 +template< typename T, typename U > struct if_na
    1.65 +{
    1.66 +    typedef T type;
    1.67 +};
    1.68 +
    1.69 +template< typename U > struct if_na<na,U>
    1.70 +{
    1.71 +    typedef U type;
    1.72 +};
    1.73 +#else
    1.74 +template< typename T > struct if_na_impl
    1.75 +{
    1.76 +    template< typename U > struct apply
    1.77 +    {
    1.78 +        typedef T type;
    1.79 +    };
    1.80 +};
    1.81 +
    1.82 +template<> struct if_na_impl<na>
    1.83 +{
    1.84 +    template< typename U > struct apply
    1.85 +    {
    1.86 +        typedef U type;
    1.87 +    };
    1.88 +};
    1.89 +
    1.90 +template< typename T, typename U > struct if_na
    1.91 +    : if_na_impl<T>::template apply<U>
    1.92 +{
    1.93 +};
    1.94 +#endif
    1.95 +
    1.96 +}}
    1.97 +
    1.98 +#endif // BOOST_MPL_AUX_NA_HPP_INCLUDED