text: // Copyright David Abrahams 2002.
  // 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 INDIRECT_TRAITS_DWA2002131_HPP
  # define INDIRECT_TRAITS_DWA2002131_HPP
  # include <boost/type_traits/is_function.hpp>
  # include <boost/type_traits/is_reference.hpp>
  # include <boost/type_traits/is_pointer.hpp>
  # include <boost/type_traits/is_class.hpp>
  # include <boost/type_traits/is_const.hpp>
  # include <boost/type_traits/is_volatile.hpp>
  # include <boost/type_traits/is_member_function_pointer.hpp>
  # include <boost/type_traits/is_member_pointer.hpp>
  # include <boost/type_traits/remove_cv.hpp>
  # include <boost/type_traits/remove_reference.hpp>
  # include <boost/type_traits/remove_pointer.hpp>
  
  # include <boost/detail/workaround.hpp>
  
  # include <boost/mpl/eval_if.hpp>
  # include <boost/mpl/if.hpp>
  # include <boost/mpl/bool.hpp>
  # include <boost/mpl/and.hpp>
  # include <boost/mpl/not.hpp>
  # include <boost/mpl/aux_/lambda_support.hpp>
  
  
  namespace network_boost { namespace detail {
  
  namespace indirect_traits {
  
  template <class T>
  struct is_reference_to_const : mpl::false_
  {
  };
  
  template <class T>
  struct is_reference_to_const<T const&> : mpl::true_
  {
  };
  
  #   if defined(BOOST_MSVC) && _MSC_FULL_VER <= 13102140 // vc7.01 alpha workaround
  template<class T>
  struct is_reference_to_const<T const volatile&> : mpl::true_
  {
  };
  #   endif 
  
  template <class T>
  struct is_reference_to_function : mpl::false_
  {
  };
  
  template <class T>
  struct is_reference_to_function<T&> : is_function<T>
  {
  };
  
  template <class T>
  struct is_pointer_to_function : mpl::false_
  {
  };
  
  // There's no such thing as a pointer-to-cv-function, so we don't need
  // specializations for those
  template <class T>
  struct is_pointer_to_function<T*> : is_function<T>
  {
  };
  
  template <class T>
  struct is_reference_to_member_function_pointer_impl : mpl::false_
  {
  };
  
  template <class T>
  struct is_reference_to_member_function_pointer_impl<T&>
      : is_member_function_pointer<typename remove_cv<T>::type>
  {
  };
  
  
  template <class T>
  struct is_reference_to_member_function_pointer
      : is_reference_to_member_function_pointer_impl<T>
  {
      BOOST_MPL_AUX_LAMBDA_SUPPORT(1,is_reference_to_member_function_pointer,(T))
  };
  
  template <class T>
  struct is_reference_to_function_pointer_aux
      : mpl::and_<
            is_reference<T>
          , is_pointer_to_function<
                typename remove_cv<
                    typename remove_reference<T>::type
                >::type
            >
        >
  {
      // There's no such thing as a pointer-to-cv-function, so we don't need specializations for those
  };
  
  template <class T>
  struct is_reference_to_function_pointer
      : mpl::if_<
            is_reference_to_function<T>
          , mpl::false_
          , is_reference_to_function_pointer_aux<T>
       >::type
  {
  };
  
  template <class T>
  struct is_reference_to_non_const
      : mpl::and_<
            is_reference<T>
          , mpl::not_<
               is_reference_to_const<T>
            >
        >
  {
  };
  
  template <class T>
  struct is_reference_to_volatile : mpl::false_
  {
  };
  
  template <class T>
  struct is_reference_to_volatile<T volatile&> : mpl::true_
  {
  };
  
  #   if defined(BOOST_MSVC) && _MSC_FULL_VER <= 13102140 // vc7.01 alpha workaround
  template <class T>
  struct is_reference_to_volatile<T const volatile&> : mpl::true_
  {
  };
  #   endif 
  
  
  template <class T>
  struct is_reference_to_pointer : mpl::false_
  {
  };
  
  template <class T>
  struct is_reference_to_pointer<T*&> : mpl::true_
  {
  };
  
  template <class T>
  struct is_reference_to_pointer<T* const&> : mpl::true_
  {
  };
  
  template <class T>
  struct is_reference_to_pointer<T* volatile&> : mpl::true_
  {
  };
  
  template <class T>
  struct is_reference_to_pointer<T* const volatile&> : mpl::true_
  {
  };
  
  template <class T>
  struct is_reference_to_class
      : mpl::and_<
            is_reference<T>
          , is_class<
                typename remove_cv<
                    typename remove_reference<T>::type
                >::type
            >
        >
  {
      BOOST_MPL_AUX_LAMBDA_SUPPORT(1,is_reference_to_class,(T))
  };
  
  template <class T>
  struct is_pointer_to_class
      : mpl::and_<
            is_pointer<T>
          , is_class<
                typename remove_cv<
                    typename remove_pointer<T>::type
                >::type
            >
        >
  {
      BOOST_MPL_AUX_LAMBDA_SUPPORT(1,is_pointer_to_class,(T))
  };
  
  
  }
  
  using namespace indirect_traits;
  
  }} // namespace network_boost::python::detail
  
  #endif // INDIRECT_TRAITS_DWA2002131_HPP
  