diff options
Diffstat (limited to 'libcxx/include/__tuple')
| -rw-r--r-- | libcxx/include/__tuple | 550 |
1 files changed, 0 insertions, 550 deletions
diff --git a/libcxx/include/__tuple b/libcxx/include/__tuple deleted file mode 100644 index f85036e7af1d..000000000000 --- a/libcxx/include/__tuple +++ /dev/null @@ -1,550 +0,0 @@ -// -*- C++ -*- -//===----------------------------------------------------------------------===// -// -// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. -// See https://llvm.org/LICENSE.txt for license information. -// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception -// -//===----------------------------------------------------------------------===// - -#ifndef _LIBCPP___TUPLE -#define _LIBCPP___TUPLE - -#include <__config> -#include <cstddef> -#include <type_traits> - -#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) -# pragma GCC system_header -#endif - - -_LIBCPP_BEGIN_NAMESPACE_STD - -template <class _Tp> struct _LIBCPP_TEMPLATE_VIS tuple_size; - -#if !defined(_LIBCPP_CXX03_LANG) -template <class _Tp, class...> -using __enable_if_tuple_size_imp = _Tp; - -template <class _Tp> -struct _LIBCPP_TEMPLATE_VIS tuple_size<__enable_if_tuple_size_imp< - const _Tp, - __enable_if_t<!is_volatile<_Tp>::value>, - integral_constant<size_t, sizeof(tuple_size<_Tp>)>>> - : public integral_constant<size_t, tuple_size<_Tp>::value> {}; - -template <class _Tp> -struct _LIBCPP_TEMPLATE_VIS tuple_size<__enable_if_tuple_size_imp< - volatile _Tp, - __enable_if_t<!is_const<_Tp>::value>, - integral_constant<size_t, sizeof(tuple_size<_Tp>)>>> - : public integral_constant<size_t, tuple_size<_Tp>::value> {}; - -template <class _Tp> -struct _LIBCPP_TEMPLATE_VIS tuple_size<__enable_if_tuple_size_imp< - const volatile _Tp, - integral_constant<size_t, sizeof(tuple_size<_Tp>)>>> - : public integral_constant<size_t, tuple_size<_Tp>::value> {}; - -#else -template <class _Tp> struct _LIBCPP_TEMPLATE_VIS tuple_size<const _Tp> : public tuple_size<_Tp> {}; -template <class _Tp> struct _LIBCPP_TEMPLATE_VIS tuple_size<volatile _Tp> : public tuple_size<_Tp> {}; -template <class _Tp> struct _LIBCPP_TEMPLATE_VIS tuple_size<const volatile _Tp> : public tuple_size<_Tp> {}; -#endif - -template <size_t _Ip, class _Tp> struct _LIBCPP_TEMPLATE_VIS tuple_element; - -template <size_t _Ip, class _Tp> -struct _LIBCPP_TEMPLATE_VIS tuple_element<_Ip, const _Tp> -{ - typedef _LIBCPP_NODEBUG typename add_const<typename tuple_element<_Ip, _Tp>::type>::type type; -}; - -template <size_t _Ip, class _Tp> -struct _LIBCPP_TEMPLATE_VIS tuple_element<_Ip, volatile _Tp> -{ - typedef _LIBCPP_NODEBUG typename add_volatile<typename tuple_element<_Ip, _Tp>::type>::type type; -}; - -template <size_t _Ip, class _Tp> -struct _LIBCPP_TEMPLATE_VIS tuple_element<_Ip, const volatile _Tp> -{ - typedef _LIBCPP_NODEBUG typename add_cv<typename tuple_element<_Ip, _Tp>::type>::type type; -}; - -template <class _Tp> struct __tuple_like : false_type {}; - -template <class _Tp> struct __tuple_like<const _Tp> : public __tuple_like<_Tp> {}; -template <class _Tp> struct __tuple_like<volatile _Tp> : public __tuple_like<_Tp> {}; -template <class _Tp> struct __tuple_like<const volatile _Tp> : public __tuple_like<_Tp> {}; - -// tuple specializations - -#ifndef _LIBCPP_CXX03_LANG - -template <size_t...> struct __tuple_indices {}; - -template <class _IdxType, _IdxType... _Values> -struct __integer_sequence { - template <template <class _OIdxType, _OIdxType...> class _ToIndexSeq, class _ToIndexType> - using __convert = _ToIndexSeq<_ToIndexType, _Values...>; - - template <size_t _Sp> - using __to_tuple_indices = __tuple_indices<(_Values + _Sp)...>; -}; - -#if !__has_builtin(__make_integer_seq) || defined(_LIBCPP_TESTING_FALLBACK_MAKE_INTEGER_SEQUENCE) -namespace __detail { - -template<typename _Tp, size_t ..._Extra> struct __repeat; -template<typename _Tp, _Tp ..._Np, size_t ..._Extra> struct __repeat<__integer_sequence<_Tp, _Np...>, _Extra...> { - typedef _LIBCPP_NODEBUG __integer_sequence<_Tp, - _Np..., - sizeof...(_Np) + _Np..., - 2 * sizeof...(_Np) + _Np..., - 3 * sizeof...(_Np) + _Np..., - 4 * sizeof...(_Np) + _Np..., - 5 * sizeof...(_Np) + _Np..., - 6 * sizeof...(_Np) + _Np..., - 7 * sizeof...(_Np) + _Np..., - _Extra...> type; -}; - -template<size_t _Np> struct __parity; -template<size_t _Np> struct __make : __parity<_Np % 8>::template __pmake<_Np> {}; - -template<> struct __make<0> { typedef __integer_sequence<size_t> type; }; -template<> struct __make<1> { typedef __integer_sequence<size_t, 0> type; }; -template<> struct __make<2> { typedef __integer_sequence<size_t, 0, 1> type; }; -template<> struct __make<3> { typedef __integer_sequence<size_t, 0, 1, 2> type; }; -template<> struct __make<4> { typedef __integer_sequence<size_t, 0, 1, 2, 3> type; }; -template<> struct __make<5> { typedef __integer_sequence<size_t, 0, 1, 2, 3, 4> type; }; -template<> struct __make<6> { typedef __integer_sequence<size_t, 0, 1, 2, 3, 4, 5> type; }; -template<> struct __make<7> { typedef __integer_sequence<size_t, 0, 1, 2, 3, 4, 5, 6> type; }; - -template<> struct __parity<0> { template<size_t _Np> struct __pmake : __repeat<typename __make<_Np / 8>::type> {}; }; -template<> struct __parity<1> { template<size_t _Np> struct __pmake : __repeat<typename __make<_Np / 8>::type, _Np - 1> {}; }; -template<> struct __parity<2> { template<size_t _Np> struct __pmake : __repeat<typename __make<_Np / 8>::type, _Np - 2, _Np - 1> {}; }; -template<> struct __parity<3> { template<size_t _Np> struct __pmake : __repeat<typename __make<_Np / 8>::type, _Np - 3, _Np - 2, _Np - 1> {}; }; -template<> struct __parity<4> { template<size_t _Np> struct __pmake : __repeat<typename __make<_Np / 8>::type, _Np - 4, _Np - 3, _Np - 2, _Np - 1> {}; }; -template<> struct __parity<5> { template<size_t _Np> struct __pmake : __repeat<typename __make<_Np / 8>::type, _Np - 5, _Np - 4, _Np - 3, _Np - 2, _Np - 1> {}; }; -template<> struct __parity<6> { template<size_t _Np> struct __pmake : __repeat<typename __make<_Np / 8>::type, _Np - 6, _Np - 5, _Np - 4, _Np - 3, _Np - 2, _Np - 1> {}; }; -template<> struct __parity<7> { template<size_t _Np> struct __pmake : __repeat<typename __make<_Np / 8>::type, _Np - 7, _Np - 6, _Np - 5, _Np - 4, _Np - 3, _Np - 2, _Np - 1> {}; }; - -} // namespace detail - -#endif // !__has_builtin(__make_integer_seq) || defined(_LIBCPP_TESTING_FALLBACK_MAKE_INTEGER_SEQUENCE) - -#if __has_builtin(__make_integer_seq) -template <size_t _Ep, size_t _Sp> -using __make_indices_imp = - typename __make_integer_seq<__integer_sequence, size_t, _Ep - _Sp>::template - __to_tuple_indices<_Sp>; -#else -template <size_t _Ep, size_t _Sp> -using __make_indices_imp = - typename __detail::__make<_Ep - _Sp>::type::template __to_tuple_indices<_Sp>; - -#endif - -template <size_t _Ep, size_t _Sp = 0> -struct __make_tuple_indices -{ - static_assert(_Sp <= _Ep, "__make_tuple_indices input error"); - typedef __make_indices_imp<_Ep, _Sp> type; -}; - - -template <class ..._Tp> class _LIBCPP_TEMPLATE_VIS tuple; - -template <class... _Tp> struct __tuple_like<tuple<_Tp...> > : true_type {}; - -template <class ..._Tp> -struct _LIBCPP_TEMPLATE_VIS tuple_size<tuple<_Tp...> > - : public integral_constant<size_t, sizeof...(_Tp)> -{ -}; - -template <size_t _Ip, class ..._Tp> -_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 -typename tuple_element<_Ip, tuple<_Tp...> >::type& -get(tuple<_Tp...>&) _NOEXCEPT; - -template <size_t _Ip, class ..._Tp> -_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 -const typename tuple_element<_Ip, tuple<_Tp...> >::type& -get(const tuple<_Tp...>&) _NOEXCEPT; - -template <size_t _Ip, class ..._Tp> -_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 -typename tuple_element<_Ip, tuple<_Tp...> >::type&& -get(tuple<_Tp...>&&) _NOEXCEPT; - -template <size_t _Ip, class ..._Tp> -_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 -const typename tuple_element<_Ip, tuple<_Tp...> >::type&& -get(const tuple<_Tp...>&&) _NOEXCEPT; - -#endif // !defined(_LIBCPP_CXX03_LANG) - -// pair specializations - -template <class _T1, class _T2> struct __tuple_like<pair<_T1, _T2> > : true_type {}; - -template <size_t _Ip, class _T1, class _T2> -_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 -typename tuple_element<_Ip, pair<_T1, _T2> >::type& -get(pair<_T1, _T2>&) _NOEXCEPT; - -template <size_t _Ip, class _T1, class _T2> -_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 -const typename tuple_element<_Ip, pair<_T1, _T2> >::type& -get(const pair<_T1, _T2>&) _NOEXCEPT; - -#ifndef _LIBCPP_CXX03_LANG -template <size_t _Ip, class _T1, class _T2> -_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 -typename tuple_element<_Ip, pair<_T1, _T2> >::type&& -get(pair<_T1, _T2>&&) _NOEXCEPT; - -template <size_t _Ip, class _T1, class _T2> -_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 -const typename tuple_element<_Ip, pair<_T1, _T2> >::type&& -get(const pair<_T1, _T2>&&) _NOEXCEPT; -#endif - -// array specializations - -template <class _Tp, size_t _Size> struct _LIBCPP_TEMPLATE_VIS array; - -template <class _Tp, size_t _Size> struct __tuple_like<array<_Tp, _Size> > : true_type {}; - -template <size_t _Ip, class _Tp, size_t _Size> -_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 -_Tp& -get(array<_Tp, _Size>&) _NOEXCEPT; - -template <size_t _Ip, class _Tp, size_t _Size> -_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 -const _Tp& -get(const array<_Tp, _Size>&) _NOEXCEPT; - -#ifndef _LIBCPP_CXX03_LANG -template <size_t _Ip, class _Tp, size_t _Size> -_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 -_Tp&& -get(array<_Tp, _Size>&&) _NOEXCEPT; - -template <size_t _Ip, class _Tp, size_t _Size> -_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 -const _Tp&& -get(const array<_Tp, _Size>&&) _NOEXCEPT; -#endif - -#ifndef _LIBCPP_CXX03_LANG - -// __tuple_types - -template <class ..._Tp> struct __tuple_types {}; - -#if !__has_builtin(__type_pack_element) - -namespace __indexer_detail { - -template <size_t _Idx, class _Tp> -struct __indexed { using type _LIBCPP_NODEBUG = _Tp; }; - -template <class _Types, class _Indexes> struct __indexer; - -template <class ..._Types, size_t ..._Idx> -struct __indexer<__tuple_types<_Types...>, __tuple_indices<_Idx...>> - : __indexed<_Idx, _Types>... -{}; - -template <size_t _Idx, class _Tp> -__indexed<_Idx, _Tp> __at_index(__indexed<_Idx, _Tp> const&); - -} // namespace __indexer_detail - -template <size_t _Idx, class ..._Types> -using __type_pack_element _LIBCPP_NODEBUG = typename decltype( - __indexer_detail::__at_index<_Idx>( - __indexer_detail::__indexer< - __tuple_types<_Types...>, - typename __make_tuple_indices<sizeof...(_Types)>::type - >{}) - )::type; -#endif - -template <size_t _Ip, class ..._Types> -struct _LIBCPP_TEMPLATE_VIS tuple_element<_Ip, __tuple_types<_Types...> > -{ - static_assert(_Ip < sizeof...(_Types), "tuple_element index out of range"); - typedef _LIBCPP_NODEBUG __type_pack_element<_Ip, _Types...> type; -}; - - -template <class ..._Tp> -struct _LIBCPP_TEMPLATE_VIS tuple_size<__tuple_types<_Tp...> > - : public integral_constant<size_t, sizeof...(_Tp)> -{ -}; - -template <class... _Tp> struct __tuple_like<__tuple_types<_Tp...> > : true_type {}; - -template <bool _ApplyLV, bool _ApplyConst, bool _ApplyVolatile> -struct __apply_cv_mf; -template <> -struct __apply_cv_mf<false, false, false> { - template <class _Tp> using __apply = _Tp; -}; -template <> -struct __apply_cv_mf<false, true, false> { - template <class _Tp> using __apply _LIBCPP_NODEBUG = const _Tp; -}; -template <> -struct __apply_cv_mf<false, false, true> { - template <class _Tp> using __apply _LIBCPP_NODEBUG = volatile _Tp; -}; -template <> -struct __apply_cv_mf<false, true, true> { - template <class _Tp> using __apply _LIBCPP_NODEBUG = const volatile _Tp; -}; -template <> -struct __apply_cv_mf<true, false, false> { - template <class _Tp> using __apply _LIBCPP_NODEBUG = _Tp&; -}; -template <> -struct __apply_cv_mf<true, true, false> { - template <class _Tp> using __apply _LIBCPP_NODEBUG = const _Tp&; -}; -template <> -struct __apply_cv_mf<true, false, true> { - template <class _Tp> using __apply _LIBCPP_NODEBUG = volatile _Tp&; -}; -template <> -struct __apply_cv_mf<true, true, true> { - template <class _Tp> using __apply _LIBCPP_NODEBUG = const volatile _Tp&; -}; -template <class _Tp, class _RawTp = typename remove_reference<_Tp>::type> -using __apply_cv_t _LIBCPP_NODEBUG = __apply_cv_mf< - is_lvalue_reference<_Tp>::value, - is_const<_RawTp>::value, - is_volatile<_RawTp>::value>; - -// __make_tuple_types - -// __make_tuple_types<_Tuple<_Types...>, _Ep, _Sp>::type is a -// __tuple_types<_Types...> using only those _Types in the range [_Sp, _Ep). -// _Sp defaults to 0 and _Ep defaults to tuple_size<_Tuple>. If _Tuple is a -// lvalue_reference type, then __tuple_types<_Types&...> is the result. - -template <class _TupleTypes, class _TupleIndices> -struct __make_tuple_types_flat; - -template <template <class...> class _Tuple, class ..._Types, size_t ..._Idx> -struct __make_tuple_types_flat<_Tuple<_Types...>, __tuple_indices<_Idx...>> { - // Specialization for pair, tuple, and __tuple_types - template <class _Tp, class _ApplyFn = __apply_cv_t<_Tp>> - using __apply_quals _LIBCPP_NODEBUG = __tuple_types< - typename _ApplyFn::template __apply<__type_pack_element<_Idx, _Types...>>... - >; -}; - -template <class _Vt, size_t _Np, size_t ..._Idx> -struct __make_tuple_types_flat<array<_Vt, _Np>, __tuple_indices<_Idx...>> { - template <size_t> - using __value_type = _Vt; - template <class _Tp, class _ApplyFn = __apply_cv_t<_Tp>> - using __apply_quals = __tuple_types< - typename _ApplyFn::template __apply<__value_type<_Idx>>... - >; -}; - -template <class _Tp, size_t _Ep = tuple_size<typename remove_reference<_Tp>::type>::value, - size_t _Sp = 0, - bool _SameSize = (_Ep == tuple_size<typename remove_reference<_Tp>::type>::value)> -struct __make_tuple_types -{ - static_assert(_Sp <= _Ep, "__make_tuple_types input error"); - using _RawTp = typename remove_cv<typename remove_reference<_Tp>::type>::type; - using _Maker = __make_tuple_types_flat<_RawTp, typename __make_tuple_indices<_Ep, _Sp>::type>; - using type = typename _Maker::template __apply_quals<_Tp>; -}; - -template <class ..._Types, size_t _Ep> -struct __make_tuple_types<tuple<_Types...>, _Ep, 0, true> { - typedef _LIBCPP_NODEBUG __tuple_types<_Types...> type; -}; - -template <class ..._Types, size_t _Ep> -struct __make_tuple_types<__tuple_types<_Types...>, _Ep, 0, true> { - typedef _LIBCPP_NODEBUG __tuple_types<_Types...> type; -}; - -template <bool ..._Preds> -struct __all_dummy; - -template <bool ..._Pred> -struct __all : _IsSame<__all_dummy<_Pred...>, __all_dummy<((void)_Pred, true)...>> {}; - -struct __tuple_sfinae_base { - template <template <class, class...> class _Trait, - class ..._LArgs, class ..._RArgs> - static auto __do_test(__tuple_types<_LArgs...>, __tuple_types<_RArgs...>) - -> __all<__enable_if_t<_Trait<_LArgs, _RArgs>::value, bool>{true}...>; - template <template <class...> class> - static auto __do_test(...) -> false_type; - - template <class _FromArgs, class _ToArgs> - using __constructible = decltype(__do_test<is_constructible>(_ToArgs{}, _FromArgs{})); - template <class _FromArgs, class _ToArgs> - using __convertible = decltype(__do_test<is_convertible>(_FromArgs{}, _ToArgs{})); - template <class _FromArgs, class _ToArgs> - using __assignable = decltype(__do_test<is_assignable>(_ToArgs{}, _FromArgs{})); -}; - -// __tuple_convertible - -template <class _Tp, class _Up, bool = __tuple_like<typename remove_reference<_Tp>::type>::value, - bool = __tuple_like<_Up>::value> -struct __tuple_convertible - : public false_type {}; - -template <class _Tp, class _Up> -struct __tuple_convertible<_Tp, _Up, true, true> - : public __tuple_sfinae_base::__convertible< - typename __make_tuple_types<_Tp>::type - , typename __make_tuple_types<_Up>::type - > -{}; - -// __tuple_constructible - -template <class _Tp, class _Up, bool = __tuple_like<typename remove_reference<_Tp>::type>::value, - bool = __tuple_like<_Up>::value> -struct __tuple_constructible - : public false_type {}; - -template <class _Tp, class _Up> -struct __tuple_constructible<_Tp, _Up, true, true> - : public __tuple_sfinae_base::__constructible< - typename __make_tuple_types<_Tp>::type - , typename __make_tuple_types<_Up>::type - > -{}; - -// __tuple_assignable - -template <class _Tp, class _Up, bool = __tuple_like<typename remove_reference<_Tp>::type>::value, - bool = __tuple_like<_Up>::value> -struct __tuple_assignable - : public false_type {}; - -template <class _Tp, class _Up> -struct __tuple_assignable<_Tp, _Up, true, true> - : public __tuple_sfinae_base::__assignable< - typename __make_tuple_types<_Tp>::type - , typename __make_tuple_types<_Up&>::type - > -{}; - - -template <size_t _Ip, class ..._Tp> -struct _LIBCPP_TEMPLATE_VIS tuple_element<_Ip, tuple<_Tp...> > -{ - typedef _LIBCPP_NODEBUG typename tuple_element<_Ip, __tuple_types<_Tp...> >::type type; -}; - -#if _LIBCPP_STD_VER > 11 -template <size_t _Ip, class ..._Tp> -using tuple_element_t _LIBCPP_NODEBUG = typename tuple_element <_Ip, _Tp...>::type; -#endif - -template <bool _IsTuple, class _SizeTrait, size_t _Expected> -struct __tuple_like_with_size_imp : false_type {}; - -template <class _SizeTrait, size_t _Expected> -struct __tuple_like_with_size_imp<true, _SizeTrait, _Expected> - : integral_constant<bool, _SizeTrait::value == _Expected> {}; - -template <class _Tuple, size_t _ExpectedSize, class _RawTuple = __uncvref_t<_Tuple> > -using __tuple_like_with_size _LIBCPP_NODEBUG = __tuple_like_with_size_imp< - __tuple_like<_RawTuple>::value, - tuple_size<_RawTuple>, _ExpectedSize - >; - -struct _LIBCPP_TYPE_VIS __check_tuple_constructor_fail { - - static constexpr bool __enable_explicit_default() { return false; } - static constexpr bool __enable_implicit_default() { return false; } - template <class ...> - static constexpr bool __enable_explicit() { return false; } - template <class ...> - static constexpr bool __enable_implicit() { return false; } - template <class ...> - static constexpr bool __enable_assign() { return false; } -}; -#endif // !defined(_LIBCPP_CXX03_LANG) - -#if _LIBCPP_STD_VER > 14 - -template <bool _CanCopy, bool _CanMove> -struct __sfinae_ctor_base {}; -template <> -struct __sfinae_ctor_base<false, false> { - __sfinae_ctor_base() = default; - __sfinae_ctor_base(__sfinae_ctor_base const&) = delete; - __sfinae_ctor_base(__sfinae_ctor_base &&) = delete; - __sfinae_ctor_base& operator=(__sfinae_ctor_base const&) = default; - __sfinae_ctor_base& operator=(__sfinae_ctor_base&&) = default; -}; -template <> -struct __sfinae_ctor_base<true, false> { - __sfinae_ctor_base() = default; - __sfinae_ctor_base(__sfinae_ctor_base const&) = default; - __sfinae_ctor_base(__sfinae_ctor_base &&) = delete; - __sfinae_ctor_base& operator=(__sfinae_ctor_base const&) = default; - __sfinae_ctor_base& operator=(__sfinae_ctor_base&&) = default; -}; -template <> -struct __sfinae_ctor_base<false, true> { - __sfinae_ctor_base() = default; - __sfinae_ctor_base(__sfinae_ctor_base const&) = delete; - __sfinae_ctor_base(__sfinae_ctor_base &&) = default; - __sfinae_ctor_base& operator=(__sfinae_ctor_base const&) = default; - __sfinae_ctor_base& operator=(__sfinae_ctor_base&&) = default; -}; - -template <bool _CanCopy, bool _CanMove> -struct __sfinae_assign_base {}; -template <> -struct __sfinae_assign_base<false, false> { - __sfinae_assign_base() = default; - __sfinae_assign_base(__sfinae_assign_base const&) = default; - __sfinae_assign_base(__sfinae_assign_base &&) = default; - __sfinae_assign_base& operator=(__sfinae_assign_base const&) = delete; - __sfinae_assign_base& operator=(__sfinae_assign_base&&) = delete; -}; -template <> -struct __sfinae_assign_base<true, false> { - __sfinae_assign_base() = default; - __sfinae_assign_base(__sfinae_assign_base const&) = default; - __sfinae_assign_base(__sfinae_assign_base &&) = default; - __sfinae_assign_base& operator=(__sfinae_assign_base const&) = default; - __sfinae_assign_base& operator=(__sfinae_assign_base&&) = delete; -}; -template <> -struct __sfinae_assign_base<false, true> { - __sfinae_assign_base() = default; - __sfinae_assign_base(__sfinae_assign_base const&) = default; - __sfinae_assign_base(__sfinae_assign_base &&) = default; - __sfinae_assign_base& operator=(__sfinae_assign_base const&) = delete; - __sfinae_assign_base& operator=(__sfinae_assign_base&&) = default; -}; -#endif // _LIBCPP_STD_VER > 14 - -_LIBCPP_END_NAMESPACE_STD - -#endif // _LIBCPP___TUPLE |