ceph/src/boost/boost/python/detail/void_return.hpp

   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 {
  14     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