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Add __float128 support.

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jzmaddock
2015-09-03 18:43:05 +01:00
parent e4ec61699a
commit c2b706da15
1 changed files with 14 additions and 7 deletions
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21
include/boost/math/tools/promotion.hpp
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@@ -86,13 +86,20 @@ namespace boost
typedef typename mpl::if_<
typename mpl::and_<is_floating_point<T1P>, is_floating_point<T2P> >::type, // both T1P and T2P are floating-point?
typename mpl::if_< typename mpl::or_<is_same<long double, T1P>, is_same<long double, T2P> >::type, // either long double?
long double, // then result type is long double.
typename mpl::if_< typename mpl::or_<is_same<double, T1P>, is_same<double, T2P> >::type, // either double?
double, // result type is double.
float // else result type is float.
>::type
>::type,
#ifdef BOOST_MATH_USE_FLOAT128
typename mpl::if_< typename mpl::or_<is_same<__float128, T1P>, is_same<__float128, T2P> >::type, // either long double?
__float128,
#endif
typename mpl::if_< typename mpl::or_<is_same<long double, T1P>, is_same<long double, T2P> >::type, // either long double?
long double, // then result type is long double.
typename mpl::if_< typename mpl::or_<is_same<double, T1P>, is_same<double, T2P> >::type, // either double?
double, // result type is double.
float // else result type is float.
>::type
#ifdef BOOST_MATH_USE_FLOAT128
>::type
#endif
>::type,
// else one or the other is a user-defined type:
typename mpl::if_< typename mpl::and_<mpl::not_<is_floating_point<T2P> >, ::boost::is_convertible<T1P, T2P> >, T2P, T1P>::type>::type type;
}; // promote_arg2