Boost C++ Libraries

boost/python/converter/shared_ptr_to_python.hpp

// Copyright David Abrahams 2003.
// Copyright Stefan Seefeld 2016.
// 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 boost_python_converter_shared_ptr_to_python_hpp_
#define boost_python_converter_shared_ptr_to_python_hpp_

#include <boost/python/refcount.hpp>
#include <boost/python/converter/shared_ptr_deleter.hpp>
#include <boost/shared_ptr.hpp>
#include <boost/get_pointer.hpp>

namespace boost { namespace python { namespace converter { 

template <class T>
PyObject* shared_ptr_to_python(shared_ptr<T> const& x)
{
    if (!x)
        return python::detail::none();
    else if (shared_ptr_deleter* d = boost::get_deleter<shared_ptr_deleter>(x))
        return incref( get_pointer( d->owner ) );
    else
        return converter::registered<shared_ptr<T> const&>::converters.to_python(&x);
}

#if !defined(BOOST_NO_CXX11_SMART_PTR)
template <class T>
PyObject* shared_ptr_to_python(std::shared_ptr<T> const& x)
{
  if (!x)
    return python::detail::none();
  else if (shared_ptr_deleter* d = std::get_deleter<shared_ptr_deleter>(x))
    return incref(get_pointer(d->owner));
  else
    return converter::registered<std::shared_ptr<T> const&>::converters.to_python(&x);
}
#endif

}}} // namespace boost::python::converter

#endif