| // Copyright David Abrahams 2002. |
| // 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 POINTER_TYPE_ID_DWA2002222_HPP |
| # define POINTER_TYPE_ID_DWA2002222_HPP |
| |
| # include <boost/python/type_id.hpp> |
| # include <boost/type_traits/composite_traits.hpp> |
| |
| namespace boost { namespace python { namespace converter { |
| |
| namespace detail |
| { |
| template <bool is_ref = false> |
| struct pointer_typeid_select |
| { |
| template <class T> |
| static inline type_info execute(T*(*)() = 0) |
| { |
| return type_id<T>(); |
| } |
| }; |
| |
| template <> |
| struct pointer_typeid_select<true> |
| { |
| template <class T> |
| static inline type_info execute(T* const volatile&(*)() = 0) |
| { |
| return type_id<T>(); |
| } |
| |
| template <class T> |
| static inline type_info execute(T*volatile&(*)() = 0) |
| { |
| return type_id<T>(); |
| } |
| |
| template <class T> |
| static inline type_info execute(T*const&(*)() = 0) |
| { |
| return type_id<T>(); |
| } |
| |
| template <class T> |
| static inline type_info execute(T*&(*)() = 0) |
| { |
| return type_id<T>(); |
| } |
| }; |
| } |
| |
| // Usage: pointer_type_id<T>() |
| // |
| // Returns a type_info associated with the type pointed |
| // to by T, which may be a pointer or a reference to a pointer. |
| template <class T> |
| type_info pointer_type_id(T(*)() = 0) |
| { |
| return detail::pointer_typeid_select< |
| is_reference<T>::value |
| >::execute((T(*)())0); |
| } |
| |
| }}} // namespace boost::python::converter |
| |
| #endif // POINTER_TYPE_ID_DWA2002222_HPP |