| /* |
| * 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) |
| * |
| * Copyright (c) 2020 Andrey Semashev |
| */ |
| /*! |
| * \file atomic/detail/classify.hpp |
| * |
| * This header contains type traits for type classification. |
| */ |
| |
| #ifndef BOOST_ATOMIC_DETAIL_CLASSIFY_HPP_INCLUDED_ |
| #define BOOST_ATOMIC_DETAIL_CLASSIFY_HPP_INCLUDED_ |
| |
| #include <boost/atomic/detail/config.hpp> |
| #include <boost/atomic/detail/type_traits/is_integral.hpp> |
| #include <boost/atomic/detail/type_traits/is_function.hpp> |
| #include <boost/atomic/detail/type_traits/is_floating_point.hpp> |
| #include <boost/atomic/detail/header.hpp> |
| |
| #ifdef BOOST_HAS_PRAGMA_ONCE |
| #pragma once |
| #endif |
| |
| namespace boost { |
| namespace atomics { |
| namespace detail { |
| |
| template< typename T, bool IsFunction = atomics::detail::is_function< T >::value > |
| struct classify_pointer |
| { |
| typedef void* type; |
| }; |
| |
| template< typename T > |
| struct classify_pointer< T, true > |
| { |
| typedef void type; |
| }; |
| |
| template< typename T, bool IsInt = atomics::detail::is_integral< T >::value, bool IsFloat = atomics::detail::is_floating_point< T >::value > |
| struct classify |
| { |
| typedef void type; |
| }; |
| |
| template< typename T > |
| struct classify< T, true, false > { typedef int type; }; |
| |
| #if !defined(BOOST_ATOMIC_NO_FLOATING_POINT) |
| template< typename T > |
| struct classify< T, false, true > { typedef float type; }; |
| #endif |
| |
| template< typename T > |
| struct classify< T*, false, false > { typedef typename classify_pointer< T >::type type; }; |
| |
| template< > |
| struct classify< void*, false, false > { typedef void type; }; |
| |
| template< > |
| struct classify< const void*, false, false > { typedef void type; }; |
| |
| template< > |
| struct classify< volatile void*, false, false > { typedef void type; }; |
| |
| template< > |
| struct classify< const volatile void*, false, false > { typedef void type; }; |
| |
| template< typename T, typename U > |
| struct classify< T U::*, false, false > { typedef void type; }; |
| |
| } // namespace detail |
| } // namespace atomics |
| } // namespace boost |
| |
| #include <boost/atomic/detail/footer.hpp> |
| |
| #endif // BOOST_ATOMIC_DETAIL_CLASSIFY_HPP_INCLUDED_ |