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// (c) 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
//
///////////////////////////////////////////////////////////////////////////////////////////////
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