69 lines
1.7 KiB
Plaintext
69 lines
1.7 KiB
Plaintext
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// Copyright David Abrahams 2002.
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// Distributed under the Boost Software License, Version 1.0. (See
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// accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#ifndef POINTER_TYPE_ID_DWA2002222_HPP
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# define POINTER_TYPE_ID_DWA2002222_HPP
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# include <boost/python/type_id.hpp>
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# include <boost/type_traits/composite_traits.hpp>
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namespace boost { namespace python { namespace converter {
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namespace detail
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{
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template <bool is_ref = false>
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struct pointer_typeid_select
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{
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template <class T>
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static inline type_info execute(T*(*)() = 0)
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{
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return type_id<T>();
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}
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};
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template <>
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struct pointer_typeid_select<true>
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{
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template <class T>
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static inline type_info execute(T* const volatile&(*)() = 0)
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{
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return type_id<T>();
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}
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template <class T>
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static inline type_info execute(T*volatile&(*)() = 0)
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{
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return type_id<T>();
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}
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template <class T>
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static inline type_info execute(T*const&(*)() = 0)
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{
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return type_id<T>();
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}
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template <class T>
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static inline type_info execute(T*&(*)() = 0)
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{
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return type_id<T>();
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}
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};
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}
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// Usage: pointer_type_id<T>()
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//
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// Returns a type_info associated with the type pointed
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// to by T, which may be a pointer or a reference to a pointer.
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template <class T>
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type_info pointer_type_id(T(*)() = 0)
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{
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return detail::pointer_typeid_select<
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is_reference<T>::value
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>::execute((T(*)())0);
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}
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}}} // namespace boost::python::converter
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#endif // POINTER_TYPE_ID_DWA2002222_HPP
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