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_TR1_HPP_INCLUDED |
10 | #define BOOST_TT_IS_BASE_OF_TR1_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/is_class.hpp> |
15 | |
16 | namespace boost { namespace tr1{ |
17 | |
18 | namespace detail{ |
19 | template <class B, class D> |
20 | struct is_base_of_imp |
21 | { |
22 | typedef typename remove_cv<B>::type ncvB; |
23 | typedef typename remove_cv<D>::type ncvD; |
24 | BOOST_STATIC_CONSTANT(bool, value = ((::boost::detail::is_base_and_derived_impl<ncvB,ncvD>::value) || (::boost::is_same<ncvB,ncvD>::value))); |
25 | }; |
26 | } |
27 | |
28 | template <class Base, class Derived> struct is_base_of |
29 | : public integral_constant<bool, (::boost::tr1::detail::is_base_of_imp<Base, Derived>::value)>{}; |
30 | |
31 | template <class Base, class Derived> struct is_base_of<Base, Derived&> : public false_type{}; |
32 | template <class Base, class Derived> struct is_base_of<Base&, Derived&> : public false_type{}; |
33 | template <class Base, class Derived> struct is_base_of<Base&, Derived> : public false_type{}; |
34 | |
35 | } } // namespace boost |
36 | |
37 | #endif // BOOST_TT_IS_BASE_OF_TR1_HPP_INCLUDED |
38 | |