49 lines
1.7 KiB
C++
49 lines
1.7 KiB
C++
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// (C) Copyright Rani Sharoni 2003-2005.
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// Use, modification and distribution are subject to the Boost Software License,
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// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt).
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//
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// See http://www.boost.org/libs/type_traits for most recent version including documentation.
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#ifndef BOOST_TT_IS_BASE_OF_TR1_HPP_INCLUDED
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#define BOOST_TT_IS_BASE_OF_TR1_HPP_INCLUDED
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#include <boost/type_traits/is_base_and_derived.hpp>
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#include <boost/type_traits/is_same.hpp>
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#include <boost/type_traits/is_class.hpp>
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#include <boost/type_traits/detail/ice_or.hpp>
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// should be the last #include
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#include <boost/type_traits/detail/bool_trait_def.hpp>
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namespace boost { namespace tr1{
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namespace detail{
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template <class B, class D>
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struct is_base_of_imp
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{
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typedef typename remove_cv<B>::type ncvB;
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typedef typename remove_cv<D>::type ncvD;
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BOOST_STATIC_CONSTANT(bool, value = (::boost::type_traits::ice_or<
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(::boost::detail::is_base_and_derived_impl<ncvB,ncvD>::value),
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(::boost::is_same<ncvB,ncvD>::value)>::value));
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};
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}
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BOOST_TT_AUX_BOOL_TRAIT_DEF2(
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is_base_of
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, Base
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, Derived
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, (::boost::tr1::detail::is_base_of_imp<Base, Derived>::value))
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BOOST_TT_AUX_BOOL_TRAIT_PARTIAL_SPEC2_2(typename Base,typename Derived,is_base_of,Base&,Derived,false)
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BOOST_TT_AUX_BOOL_TRAIT_PARTIAL_SPEC2_2(typename Base,typename Derived,is_base_of,Base,Derived&,false)
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BOOST_TT_AUX_BOOL_TRAIT_PARTIAL_SPEC2_2(typename Base,typename Derived,is_base_of,Base&,Derived&,false)
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} } // namespace boost
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#include <boost/type_traits/detail/bool_trait_undef.hpp>
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#endif // BOOST_TT_IS_BASE_OF_TR1_HPP_INCLUDED
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