1 | |
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2 | // (C) Copyright Rani Sharoni 2003-2005. |
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3 | // Use, modification and distribution are subject to the Boost Software License, |
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4 | // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
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5 | // http://www.boost.org/LICENSE_1_0.txt). |
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6 | // |
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7 | // See http://www.boost.org/libs/type_traits for most recent version including documentation. |
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8 | |
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9 | #ifndef BOOST_TT_IS_BASE_OF_HPP_INCLUDED |
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10 | #define BOOST_TT_IS_BASE_OF_HPP_INCLUDED |
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11 | |
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12 | #include <boost/type_traits/is_base_and_derived.hpp> |
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13 | #include <boost/type_traits/is_same.hpp> |
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14 | #include <boost/type_traits/is_class.hpp> |
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15 | #include <boost/type_traits/detail/ice_or.hpp> |
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16 | #include <boost/type_traits/detail/ice_and.hpp> |
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17 | |
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18 | // should be the last #include |
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19 | #include <boost/type_traits/detail/bool_trait_def.hpp> |
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20 | |
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21 | namespace boost { |
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22 | |
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23 | namespace detail{ |
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24 | template <class B, class D> |
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25 | struct is_base_of_imp |
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26 | { |
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27 | typedef typename remove_cv<B>::type ncvB; |
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28 | typedef typename remove_cv<D>::type ncvD; |
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29 | BOOST_STATIC_CONSTANT(bool, value = (::boost::type_traits::ice_or< |
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30 | (::boost::detail::is_base_and_derived_impl<ncvB,ncvD>::value), |
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31 | (::boost::type_traits::ice_and< ::boost::is_same<ncvB,ncvD>::value, ::boost::is_class<ncvB>::value>::value)>::value)); |
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32 | }; |
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33 | } |
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34 | |
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35 | BOOST_TT_AUX_BOOL_TRAIT_DEF2( |
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36 | is_base_of |
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37 | , Base |
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38 | , Derived |
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39 | , (::boost::detail::is_base_of_imp<Base, Derived>::value)) |
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40 | |
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41 | #ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION |
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42 | BOOST_TT_AUX_BOOL_TRAIT_PARTIAL_SPEC2_2(typename Base,typename Derived,is_base_of,Base&,Derived,false) |
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43 | BOOST_TT_AUX_BOOL_TRAIT_PARTIAL_SPEC2_2(typename Base,typename Derived,is_base_of,Base,Derived&,false) |
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44 | BOOST_TT_AUX_BOOL_TRAIT_PARTIAL_SPEC2_2(typename Base,typename Derived,is_base_of,Base&,Derived&,false) |
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45 | #endif |
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46 | |
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47 | } // namespace boost |
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48 | |
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49 | #include <boost/type_traits/detail/bool_trait_undef.hpp> |
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50 | |
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51 | #endif // BOOST_TT_IS_BASE_AND_DERIVED_HPP_INCLUDED |
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