82 lines
1.8 KiB
Plaintext
82 lines
1.8 KiB
Plaintext
|
#ifndef BORROWED_PTR_DWA20020601_HPP
|
||
|
|
# define BORROWED_PTR_DWA20020601_HPP
|
||
|
|
// 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)
|
||
|
|
|
||
|
|
# include <boost/config.hpp>
|
||
|
|
# include <boost/type.hpp>
|
||
|
|
# include <boost/mpl/if.hpp>
|
||
|
|
# include <boost/type_traits/object_traits.hpp>
|
||
|
|
# include <boost/type_traits/cv_traits.hpp>
|
||
|
|
# include <boost/python/tag.hpp>
|
||
|
|
|
||
|
|
namespace boost { namespace python { namespace detail {
|
||
|
|
|
||
|
|
template<class T> class borrowed
|
||
|
|
{
|
||
|
|
typedef T type;
|
||
|
|
};
|
||
|
|
|
||
|
|
template<typename T>
|
||
|
|
struct is_borrowed_ptr
|
||
|
|
{
|
||
|
|
BOOST_STATIC_CONSTANT(bool, value = false);
|
||
|
|
};
|
||
|
|
|
||
|
|
# if !defined(__MWERKS__) || __MWERKS__ > 0x3000
|
||
|
|
template<typename T>
|
||
|
|
struct is_borrowed_ptr<borrowed<T>*>
|
||
|
|
{
|
||
|
|
BOOST_STATIC_CONSTANT(bool, value = true);
|
||
|
|
};
|
||
|
|
|
||
|
|
template<typename T>
|
||
|
|
struct is_borrowed_ptr<borrowed<T> const*>
|
||
|
|
{
|
||
|
|
BOOST_STATIC_CONSTANT(bool, value = true);
|
||
|
|
};
|
||
|
|
|
||
|
|
template<typename T>
|
||
|
|
struct is_borrowed_ptr<borrowed<T> volatile*>
|
||
|
|
{
|
||
|
|
BOOST_STATIC_CONSTANT(bool, value = true);
|
||
|
|
};
|
||
|
|
|
||
|
|
template<typename T>
|
||
|
|
struct is_borrowed_ptr<borrowed<T> const volatile*>
|
||
|
|
{
|
||
|
|
BOOST_STATIC_CONSTANT(bool, value = true);
|
||
|
|
};
|
||
|
|
# else
|
||
|
|
template<typename T>
|
||
|
|
struct is_borrowed
|
||
|
|
{
|
||
|
|
BOOST_STATIC_CONSTANT(bool, value = false);
|
||
|
|
};
|
||
|
|
template<typename T>
|
||
|
|
struct is_borrowed<borrowed<T> >
|
||
|
|
{
|
||
|
|
BOOST_STATIC_CONSTANT(bool, value = true);
|
||
|
|
};
|
||
|
|
template<typename T>
|
||
|
|
struct is_borrowed_ptr<T*>
|
||
|
|
: is_borrowed<typename remove_cv<T>::type>
|
||
|
|
{
|
||
|
|
};
|
||
|
|
# endif
|
||
|
|
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline T* get_managed_object(detail::borrowed<T> const volatile* p, tag_t)
|
||
|
|
{
|
||
|
|
return (T*)p;
|
||
|
|
}
|
||
|
|
|
||
|
|
}} // namespace boost::python::detail
|
||
|
|
|
||
|
|
#endif // #ifndef BORROWED_PTR_DWA20020601_HPP
|