//  © Copyright Fernando Luis Cacciola Carballal 2000-2004

 //  Use, modification, and distribution is subject to 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 library home page at http://www.boost.org/libs/numeric/conversion

 //

 // Contact the author at: fernando_cacciola@hotmail.com

 // 

 #ifndef BOOST_NUMERIC_CONVERSION_DETAIL_INT_FLOAT_MIXTURE_FLC_12NOV2002_HPP

 #define BOOST_NUMERIC_CONVERSION_DETAIL_INT_FLOAT_MIXTURE_FLC_12NOV2002_HPP

 #include "boost/config.hpp"

 #include "boost/limits.hpp"

 #include "boost/numeric/conversion/int_float_mixture_enum.hpp"

 #include "boost/numeric/conversion/detail/meta.hpp"

 #include "boost/mpl/integral_c.hpp"

 namespace boost { namespace numeric { namespace convdetail

 {

   // Integral Constants for 'IntFloatMixture'

   typedef mpl::integral_c<int_float_mixture_enum, integral_to_integral> int2int_c ;

   typedef mpl::integral_c<int_float_mixture_enum, integral_to_float>    int2float_c ;

   typedef mpl::integral_c<int_float_mixture_enum, float_to_integral>    float2int_c ;

   typedef mpl::integral_c<int_float_mixture_enum, float_to_float>       float2float_c ;

   // Metafunction:

   //

   //   get_int_float_mixture<T,S>::type

   //

   // Selects the appropriate Int-Float Mixture Integral Constant for the combination T,S.

   //

   template<class T,class S>

   struct get_int_float_mixture

   {

     typedef mpl::bool_< ::std::numeric_limits<S>::is_integer > S_int ;

     typedef mpl::bool_< ::std::numeric_limits<T>::is_integer > T_int ;

     typedef typename

       for_both<S_int, T_int, int2int_c, int2float_c, float2int_c, float2float_c>::type

         type ;

   } ;

   // Metafunction:

   //

   //   for_int_float_mixture<Mixture,int_int,int_float,float_int,float_float>::type

   //

   // {Mixture} is one of the Integral Constants for Mixture, declared above.

   // {int_int,int_float,float_int,float_float} are aribtrary types. (not metafunctions)

   //

   // According to the value of 'IntFloatMixture', selects the corresponding type.

   //

   template<class IntFloatMixture, class Int2Int, class Int2Float, class Float2Int, class Float2Float>

   struct for_int_float_mixture

   {

     typedef typename

       ct_switch4<IntFloatMixture

                  ,int2int_c, int2float_c, float2int_c  // default

                  ,Int2Int  , Int2Float  , Float2Int  , Float2Float

                 >::type

         type ;

   } ;

 } } } // namespace boost::numeric::convdetail

 #endif

 //

 ///////////////////////////////////////////////////////////////////////////////////////////////