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1 | // Copyright 2005 Alexander Nasonov. |
2 | // Distributed under the Boost Software License, Version 1.0. (See | |
3 | // accompanying file LICENSE_1_0.txt or copy at | |
4 | // http://www.boost.org/LICENSE_1_0.txt) | |
5 | ||
6 | #ifndef FILE_boost_type_traits_floating_point_promotion_hpp_INCLUDED | |
7 | #define FILE_boost_type_traits_floating_point_promotion_hpp_INCLUDED | |
8 | ||
11fdf7f2 TL |
9 | #include <boost/config.hpp> |
10 | ||
7c673cae FG |
11 | namespace boost { |
12 | ||
13 | template<class T> struct floating_point_promotion { typedef T type; }; | |
14 | template<> struct floating_point_promotion<float> { typedef double type; }; | |
15 | template<> struct floating_point_promotion<float const> { typedef double const type; }; | |
16 | template<> struct floating_point_promotion<float volatile>{ typedef double volatile type; }; | |
17 | template<> struct floating_point_promotion<float const volatile> { typedef double const volatile type; }; | |
18 | ||
b32b8144 FG |
19 | #if !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES) |
20 | ||
21 | template <class T> using floating_point_promotion_t = typename floating_point_promotion<T>::type; | |
22 | ||
23 | #endif | |
24 | ||
7c673cae FG |
25 | } |
26 | ||
27 | #endif // #ifndef FILE_boost_type_traits_floating_point_promotion_hpp_INCLUDED | |
28 |