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 VOID_RETURN_DWA200274_HPP
6 # define VOID_RETURN_DWA200274_HPP
7 
8 # include <boost/config.hpp>
9 
10 namespace boost { namespace python { namespace detail {
11 
12 struct void_return
13 {
void_returnboost::python::detail::void_return14     void_return() {}
15  private:
16     void operator=(void_return const&);
17 };
18 
19 template <class T>
20 struct returnable
21 {
22     typedef T type;
23 };
24 
25 # ifdef BOOST_NO_VOID_RETURNS
26 template <>
27 struct returnable<void>
28 {
29     typedef void_return type;
30 };
31 
32 #  ifndef BOOST_NO_CV_VOID_SPECIALIZATIONS
33 template <> struct returnable<const void> : returnable<void> {};
34 template <> struct returnable<volatile void> : returnable<void> {};
35 template <> struct returnable<const volatile void> : returnable<void> {};
36 #  endif
37 
38 # endif // BOOST_NO_VOID_RETURNS
39 
40 }}} // namespace boost::python::detail
41 
42 #endif // VOID_RETURN_DWA200274_HPP
43