Index: third_party/boost/boost/type_traits/floating_point_promotion.hpp |
diff --git a/third_party/boost/boost/type_traits/floating_point_promotion.hpp b/third_party/boost/boost/type_traits/floating_point_promotion.hpp |
new file mode 100644 |
index 0000000000000000000000000000000000000000..8b6ae3a32a98c24408290789317ab3c792896dc7 |
--- /dev/null |
+++ b/third_party/boost/boost/type_traits/floating_point_promotion.hpp |
@@ -0,0 +1,91 @@ |
+// Copyright 2005 Alexander Nasonov. |
+// Distributed under 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) |
+ |
+#ifndef FILE_boost_type_traits_floating_point_promotion_hpp_INCLUDED |
+#define FILE_boost_type_traits_floating_point_promotion_hpp_INCLUDED |
+ |
+#include <boost/config.hpp> |
+ |
+#ifdef BOOST_NO_CV_SPECIALIZATIONS |
+#include <boost/mpl/at.hpp> |
+#include <boost/mpl/int.hpp> |
+#include <boost/mpl/multiplies.hpp> |
+#include <boost/mpl/plus.hpp> |
+#include <boost/mpl/vector.hpp> |
+#include <boost/type_traits/is_same.hpp> |
+#endif |
+ |
+// Should be the last #include |
+#include <boost/type_traits/detail/type_trait_def.hpp> |
+ |
+namespace boost { |
+ |
+namespace type_traits { namespace detail { |
+ |
+#ifndef BOOST_NO_CV_SPECIALIZATIONS |
+ |
+template<class T> |
+struct floating_point_promotion |
+{ |
+ typedef T type; |
+}; |
+ |
+template<> |
+struct floating_point_promotion<float> |
+{ |
+ typedef double type; |
+}; |
+ |
+template<> |
+struct floating_point_promotion<float const> |
+{ |
+ typedef double const type; |
+}; |
+ |
+template<> |
+struct floating_point_promotion<float volatile> |
+{ |
+ typedef double volatile type; |
+}; |
+ |
+template<> |
+struct floating_point_promotion<float const volatile> |
+{ |
+ typedef double const volatile type; |
+}; |
+ |
+#else |
+ |
+template<class T> |
+struct floating_point_promotion |
+ : mpl::at< |
+ mpl::vector< T, double, double const, double volatile, |
+ double const volatile > |
+ , mpl::plus< |
+ is_same<T, float> |
+ , mpl::multiplies< is_same<T, float const> , mpl::int_<2> > |
+ , mpl::multiplies< is_same<T, float volatile> , mpl::int_<3> > |
+ , mpl::multiplies< is_same<T, float const volatile>, mpl::int_<4> > |
+ > |
+ > |
+{ |
+}; |
+ |
+#endif |
+ |
+} } |
+ |
+BOOST_TT_AUX_TYPE_TRAIT_DEF1( |
+ floating_point_promotion |
+ , T |
+ , BOOST_DEDUCED_TYPENAME |
+ boost::type_traits::detail::floating_point_promotion<T>::type |
+ ) |
+} |
+ |
+#include <boost/type_traits/detail/type_trait_undef.hpp> |
+ |
+#endif // #ifndef FILE_boost_type_traits_floating_point_promotion_hpp_INCLUDED |
+ |