MySources/boost_graph/boost/python/ptr.hpp

66 lines
1.2 KiB
C++

#ifndef BOOST_PYTHON_PTR_HPP
# define BOOST_PYTHON_PTR_HPP
# include <boost/python/detail/prefix.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)
//
// Based on boost/ref.hpp, thus:
// Copyright (C) 1999, 2000 Jaakko Jarvi (jaakko.jarvi@cs.utu.fi)
// Copyright (C) 2001 Peter Dimov
# include <boost/config.hpp>
# include <boost/mpl/bool.hpp>
namespace boost { namespace python {
template<class Ptr> class pointer_wrapper
{
public:
typedef Ptr type;
explicit pointer_wrapper(Ptr x): p_(x) {}
operator Ptr() const { return p_; }
Ptr get() const { return p_; }
private:
Ptr p_;
};
template<class T>
inline pointer_wrapper<T> ptr(T t)
{
return pointer_wrapper<T>(t);
}
template<typename T>
class is_pointer_wrapper
: public mpl::false_
{
};
template<typename T>
class is_pointer_wrapper<pointer_wrapper<T> >
: public mpl::true_
{
};
template<typename T>
class unwrap_pointer
{
public:
typedef T type;
};
template<typename T>
class unwrap_pointer<pointer_wrapper<T> >
{
public:
typedef T type;
};
}} // namespace boost::python
#endif