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1 | // Copyright David Abrahams 2002. | |
2 | // Distributed under the Boost Software License, Version 1.0. (See | |
3 | // accompanying file LICENSE_1_0.txt or copy at | |
4 | // http://www.boost.org/LICENSE_1_0.txt) | |
5 | #ifndef COPY_CONST_REFERENCE_DWA2002131_HPP | |
6 | # define COPY_CONST_REFERENCE_DWA2002131_HPP | |
7 | ||
8 | # include <boost/python/detail/prefix.hpp> | |
9 | # include <boost/python/detail/indirect_traits.hpp> | |
10 | # include <boost/mpl/if.hpp> | |
11 | # include <boost/python/to_python_value.hpp> | |
12 | ||
13 | namespace boost { namespace python { | |
14 | ||
15 | namespace detail | |
16 | { | |
17 | template <class R> | |
18 | struct copy_const_reference_expects_a_const_reference_return_type | |
19 | # if defined(__GNUC__) || defined(__EDG__) | |
20 | {} | |
21 | # endif | |
22 | ; | |
23 | } | |
24 | ||
25 | template <class T> struct to_python_value; | |
26 | ||
27 | struct copy_const_reference | |
28 | { | |
29 | template <class T> | |
30 | struct apply | |
31 | { | |
32 | typedef typename mpl::if_c< | |
33 | indirect_traits::is_reference_to_const<T>::value | |
34 | , to_python_value<T> | |
35 | , detail::copy_const_reference_expects_a_const_reference_return_type<T> | |
36 | >::type type; | |
37 | }; | |
38 | }; | |
39 | ||
40 | ||
41 | }} // namespace boost::python | |
42 | ||
43 | #endif // COPY_CONST_REFERENCE_DWA2002131_HPP |