ceph/src/boost/libs/python/include/boost/python/pointee.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 POINTEE_DWA2002323_HPP
   6 # define POINTEE_DWA2002323_HPP
   7
   8 # include <boost/python/detail/prefix.hpp>
   9
  10 # include <boost/type_traits/object_traits.hpp>
  11 # include <boost/type_traits/remove_pointer.hpp>
  12
  13 namespace boost { namespace python {
  14
  15 namespace detail
  16 {
  17   template <bool is_ptr = true>
  18   struct pointee_impl
  19   {
  20       template <class T> struct apply : remove_pointer<T> {};
  21   };
  22
  23   template <>
  24   struct pointee_impl<false>
  25   {
  26       template <class T> struct apply
  27       {
  28           typedef typename T::element_type type;
  29       };
  30   };
  31 }
  32
  33 template <class T>
  34 struct pointee
  35     : detail::pointee_impl<
  36         ::boost::is_pointer<T>::value
  37       >::template apply<T>
  38 {
  39 };
  40
  41 }} // namespace boost::python::detail
  42
  43 #endif // POINTEE_DWA2002323_HPP