boost/type_traits/is_base_of.hpp

   1
   2 //  (C) Copyright Rani Sharoni 2003-2005.
   3 //  Use, modification and distribution are subject to the Boost Software License,
   4 //  Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
   5 //  http://www.boost.org/LICENSE_1_0.txt).
   6 //
   7 //  See http://www.boost.org/libs/type_traits for most recent version including documentation.
   8
   9 #ifndef BOOST_TT_IS_BASE_OF_HPP_INCLUDED
  10 #define BOOST_TT_IS_BASE_OF_HPP_INCLUDED
  11
  12 #include <boost/type_traits/is_base_and_derived.hpp>
  13 #include <boost/type_traits/is_same.hpp>
  14 #include <boost/type_traits/detail/ice_or.hpp>
  15
  16 // should be the last #include
  17 #include <boost/type_traits/detail/bool_trait_def.hpp>
  18
  19 namespace boost {
  20
  21 BOOST_TT_AUX_BOOL_TRAIT_DEF2(
  22       is_base_of
  23     , Base
  24     , Derived
  25     , (::boost::type_traits::ice_or<
  26          (::boost::detail::is_base_and_derived_impl<Base,Derived>::value),
  27          (::boost::is_same<Base,Derived>::value)>::value)
  28     )
  29
  30 #ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
  31 BOOST_TT_AUX_BOOL_TRAIT_PARTIAL_SPEC2_2(typename Base,typename Derived,is_base_of,Base&,Derived,false)
  32 BOOST_TT_AUX_BOOL_TRAIT_PARTIAL_SPEC2_2(typename Base,typename Derived,is_base_of,Base,Derived&,false)
  33 BOOST_TT_AUX_BOOL_TRAIT_PARTIAL_SPEC2_2(typename Base,typename Derived,is_base_of,Base&,Derived&,false)
  34 #endif
  35
  36 } // namespace boost
  37
  38 #include <boost/type_traits/detail/bool_trait_undef.hpp>
  39
  40 #endif // BOOST_TT_IS_BASE_AND_DERIVED_HPP_INCLUDED