1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/epoc32/include/stdapis/boost/numeric/conversion/detail/udt_builtin_mixture.hpp	Tue Mar 16 16:12:26 2010 +0000
     1.3 @@ -0,0 +1,69 @@
     1.4 +//  © Copyright Fernando Luis Cacciola Carballal 2000-2004
     1.5 +//  Use, modification, and distribution is subject to the Boost Software
     1.6 +//  License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
     1.7 +//  http://www.boost.org/LICENSE_1_0.txt)
     1.8 +
     1.9 +//  See library home page at http://www.boost.org/libs/numeric/conversion
    1.10 +//
    1.11 +// Contact the author at: fernando_cacciola@hotmail.com
    1.12 +// 
    1.13 +#ifndef BOOST_NUMERIC_CONVERSION_DETAIL_UDT_BUILTIN_MIXTURE_FLC_12NOV2002_HPP
    1.14 +#define BOOST_NUMERIC_CONVERSION_DETAIL_UDT_BUILTIN_MIXTURE_FLC_12NOV2002_HPP
    1.15 +
    1.16 +#include "boost/type_traits/is_arithmetic.hpp"
    1.17 +
    1.18 +#include "boost/numeric/conversion/udt_builtin_mixture_enum.hpp"
    1.19 +#include "boost/numeric/conversion/detail/meta.hpp"
    1.20 +
    1.21 +#include "boost/mpl/integral_c.hpp"
    1.22 +
    1.23 +namespace boost { namespace numeric { namespace convdetail
    1.24 +{
    1.25 +  // Integral Constants for 'UdtMixture'
    1.26 +  typedef mpl::integral_c<udt_builtin_mixture_enum, builtin_to_builtin> builtin2builtin_c ;
    1.27 +  typedef mpl::integral_c<udt_builtin_mixture_enum, builtin_to_udt>     builtin2udt_c ;
    1.28 +  typedef mpl::integral_c<udt_builtin_mixture_enum, udt_to_builtin>     udt2builtin_c ;
    1.29 +  typedef mpl::integral_c<udt_builtin_mixture_enum, udt_to_udt>         udt2udt_c ;
    1.30 +
    1.31 +  // Metafunction:
    1.32 +  //
    1.33 +  //   for_udt_mixture<UdtMixture,BuiltIn2BuiltIn,BuiltIn2Udt,Udt2BuiltIn,Udt2Udt>::type
    1.34 +  //
    1.35 +  // {UdtMixture} is one of the Integral Constants for UdMixture, declared above.
    1.36 +  // {BuiltIn2BuiltIn,BuiltIn2Udt,Udt2BuiltIn,Udt2Udt} are aribtrary types. (not metafunctions)
    1.37 +  //
    1.38 +  // According to the value of 'UdtMixture', selects the corresponding type.
    1.39 +  //
    1.40 +  template<class UdtMixture, class BuiltIn2BuiltIn, class BuiltIn2Udt, class Udt2BuiltIn, class Udt2Udt>
    1.41 +  struct for_udt_builtin_mixture
    1.42 +  {
    1.43 +    typedef typename
    1.44 +      ct_switch4<UdtMixture
    1.45 +                 , builtin2builtin_c, builtin2udt_c, udt2builtin_c // default
    1.46 +                 , BuiltIn2BuiltIn  , BuiltIn2Udt  , Udt2BuiltIn  , Udt2Udt
    1.47 +                >::type
    1.48 +        type ;
    1.49 +  } ;
    1.50 +
    1.51 +  // Metafunction:
    1.52 +  //
    1.53 +  //   get_udt_mixture<T,S>::type
    1.54 +  //
    1.55 +  // Selects the appropriate UdtMixture Integral Constant for the combination T,S.
    1.56 +  //
    1.57 +  template<class T,class S>
    1.58 +  struct get_udt_builtin_mixture
    1.59 +  {
    1.60 +    typedef is_arithmetic<S> S_builtin ;
    1.61 +    typedef is_arithmetic<T> T_builtin ;
    1.62 +
    1.63 +    typedef typename
    1.64 +      for_both<S_builtin, T_builtin, builtin2builtin_c, builtin2udt_c, udt2builtin_c, udt2udt_c>::type
    1.65 +        type ;
    1.66 +  } ;
    1.67 +
    1.68 +} } } // namespace boost::numeric::convdetail
    1.69 +
    1.70 +#endif
    1.71 +
    1.72 +