diff options
| -rw-r--r-- | libcxx/include/type_traits | 46 |
1 files changed, 1 insertions, 45 deletions
diff --git a/libcxx/include/type_traits b/libcxx/include/type_traits index be893b0dd51..58d160ee676 100644 --- a/libcxx/include/type_traits +++ b/libcxx/include/type_traits @@ -733,51 +733,7 @@ struct _LIBCPP_VISIBLE is_base_of #else // __has_feature(is_base_of) -// (C) Copyright Rani Sharoni 2003. -// Use, modification and distribution are subject to 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). -// -// See http://www.boost.org/libs/type_traits for most recent version including documentation. - -template <class _Bp, class _Dp> -struct __is_base_of_tests -{ - template <class _Tp> - static char __test(const volatile _Dp*, _Tp); - static __two __test(const volatile _Bp*, int); -}; - -template <class _Bp, class _Dp> -struct __is_base_of_imp -{ - struct __host - { - operator const volatile _Bp*() const; - operator const volatile _Dp*(); - }; - - static const size_t __complete_check = sizeof(_Dp); - static const bool value = sizeof(__is_base_of_tests<_Bp, _Dp>::__test(__host(), 0)) == 1; -}; - -template <class _Bp, class _Dp, bool = is_class<_Bp>::value, - bool = is_class<_Dp>::value, - bool = is_same<_Bp, _Dp>::value> -struct __libcpp_base_of : public false_type {}; - -template <class _Bp, class _Dp> -struct __libcpp_base_of<_Bp, _Dp, true, true, true> : public true_type {}; - -template <class _Bp, class _Dp> -struct __libcpp_base_of<_Bp, _Dp, true, true, false> - : public integral_constant<bool, __is_base_of_imp<_Bp, _Dp>::value> {}; - -template <class _Bp, class _Dp> -struct _LIBCPP_VISIBLE is_base_of - : public __libcpp_base_of<typename remove_cv<_Bp>::type, typename remove_cv<_Dp>::type> -{ -}; +#error is_base_of not implemented. #endif // __has_feature(is_base_of) |
