diff options
Diffstat (limited to 'r21/sources/cxx-stl/llvm-libc++/include/tuple')
| -rw-r--r-- | r21/sources/cxx-stl/llvm-libc++/include/tuple | 1428 |
1 files changed, 0 insertions, 1428 deletions
diff --git a/r21/sources/cxx-stl/llvm-libc++/include/tuple b/r21/sources/cxx-stl/llvm-libc++/include/tuple deleted file mode 100644 index 32bc86913..000000000 --- a/r21/sources/cxx-stl/llvm-libc++/include/tuple +++ /dev/null @@ -1,1428 +0,0 @@ -// -*- C++ -*- -//===--------------------------- tuple ------------------------------------===// -// -// 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 - -/* - tuple synopsis - -namespace std -{ - -template <class... T> -class tuple { -public: - constexpr tuple(); - explicit(see-below) tuple(const T&...); // constexpr in C++14 - template <class... U> - explicit(see-below) tuple(U&&...); // constexpr in C++14 - tuple(const tuple&) = default; - tuple(tuple&&) = default; - template <class... U> - explicit(see-below) tuple(const tuple<U...>&); // constexpr in C++14 - template <class... U> - explicit(see-below) tuple(tuple<U...>&&); // constexpr in C++14 - template <class U1, class U2> - explicit(see-below) tuple(const pair<U1, U2>&); // iff sizeof...(T) == 2 // constexpr in C++14 - template <class U1, class U2> - explicit(see-below) tuple(pair<U1, U2>&&); // iff sizeof...(T) == 2 // constexpr in C++14 - - // allocator-extended constructors - template <class Alloc> - tuple(allocator_arg_t, const Alloc& a); - template <class Alloc> - explicit(see-below) tuple(allocator_arg_t, const Alloc& a, const T&...); - template <class Alloc, class... U> - explicit(see-below) tuple(allocator_arg_t, const Alloc& a, U&&...); - template <class Alloc> - tuple(allocator_arg_t, const Alloc& a, const tuple&); - template <class Alloc> - tuple(allocator_arg_t, const Alloc& a, tuple&&); - template <class Alloc, class... U> - explicit(see-below) tuple(allocator_arg_t, const Alloc& a, const tuple<U...>&); - template <class Alloc, class... U> - explicit(see-below) tuple(allocator_arg_t, const Alloc& a, tuple<U...>&&); - template <class Alloc, class U1, class U2> - explicit(see-below) tuple(allocator_arg_t, const Alloc& a, const pair<U1, U2>&); - template <class Alloc, class U1, class U2> - explicit(see-below) tuple(allocator_arg_t, const Alloc& a, pair<U1, U2>&&); - - tuple& operator=(const tuple&); - tuple& - operator=(tuple&&) noexcept(AND(is_nothrow_move_assignable<T>::value ...)); - template <class... U> - tuple& operator=(const tuple<U...>&); - template <class... U> - tuple& operator=(tuple<U...>&&); - template <class U1, class U2> - tuple& operator=(const pair<U1, U2>&); // iff sizeof...(T) == 2 - template <class U1, class U2> - tuple& operator=(pair<U1, U2>&&); // iff sizeof...(T) == 2 - - void swap(tuple&) noexcept(AND(swap(declval<T&>(), declval<T&>())...)); -}; - -template <class ...T> -tuple(T...) -> tuple<T...>; // since C++17 -template <class T1, class T2> -tuple(pair<T1, T2>) -> tuple<T1, T2>; // since C++17 -template <class Alloc, class ...T> -tuple(allocator_arg_t, Alloc, T...) -> tuple<T...>; // since C++17 -template <class Alloc, class T1, class T2> -tuple(allocator_arg_t, Alloc, pair<T1, T2>) -> tuple<T1, T2>; // since C++17 -template <class Alloc, class ...T> -tuple(allocator_arg_t, Alloc, tuple<T...>) -> tuple<T...>; // since C++17 - -inline constexpr unspecified ignore; - -template <class... T> tuple<V...> make_tuple(T&&...); // constexpr in C++14 -template <class... T> tuple<ATypes...> forward_as_tuple(T&&...) noexcept; // constexpr in C++14 -template <class... T> tuple<T&...> tie(T&...) noexcept; // constexpr in C++14 -template <class... Tuples> tuple<CTypes...> tuple_cat(Tuples&&... tpls); // constexpr in C++14 - -// [tuple.apply], calling a function with a tuple of arguments: -template <class F, class Tuple> - constexpr decltype(auto) apply(F&& f, Tuple&& t); // C++17 -template <class T, class Tuple> - constexpr T make_from_tuple(Tuple&& t); // C++17 - -// 20.4.1.4, tuple helper classes: -template <class T> struct tuple_size; // undefined -template <class... T> struct tuple_size<tuple<T...>>; -template <class T> - inline constexpr size_t tuple_size_v = tuple_size<T>::value; // C++17 -template <size_t I, class T> struct tuple_element; // undefined -template <size_t I, class... T> struct tuple_element<I, tuple<T...>>; -template <size_t I, class T> - using tuple_element_t = typename tuple_element <I, T>::type; // C++14 - -// 20.4.1.5, element access: -template <size_t I, class... T> - typename tuple_element<I, tuple<T...>>::type& - get(tuple<T...>&) noexcept; // constexpr in C++14 -template <size_t I, class... T> - const typename tuple_element<I, tuple<T...>>::type& - get(const tuple<T...>&) noexcept; // constexpr in C++14 -template <size_t I, class... T> - typename tuple_element<I, tuple<T...>>::type&& - get(tuple<T...>&&) noexcept; // constexpr in C++14 -template <size_t I, class... T> - const typename tuple_element<I, tuple<T...>>::type&& - get(const tuple<T...>&&) noexcept; // constexpr in C++14 - -template <class T1, class... T> - constexpr T1& get(tuple<T...>&) noexcept; // C++14 -template <class T1, class... T> - constexpr const T1& get(const tuple<T...>&) noexcept; // C++14 -template <class T1, class... T> - constexpr T1&& get(tuple<T...>&&) noexcept; // C++14 -template <class T1, class... T> - constexpr const T1&& get(const tuple<T...>&&) noexcept; // C++14 - -// 20.4.1.6, relational operators: -template<class... T, class... U> bool operator==(const tuple<T...>&, const tuple<U...>&); // constexpr in C++14 -template<class... T, class... U> bool operator<(const tuple<T...>&, const tuple<U...>&); // constexpr in C++14 -template<class... T, class... U> bool operator!=(const tuple<T...>&, const tuple<U...>&); // constexpr in C++14 -template<class... T, class... U> bool operator>(const tuple<T...>&, const tuple<U...>&); // constexpr in C++14 -template<class... T, class... U> bool operator<=(const tuple<T...>&, const tuple<U...>&); // constexpr in C++14 -template<class... T, class... U> bool operator>=(const tuple<T...>&, const tuple<U...>&); // constexpr in C++14 - -template <class... Types, class Alloc> - struct uses_allocator<tuple<Types...>, Alloc>; - -template <class... Types> - void - swap(tuple<Types...>& x, tuple<Types...>& y) noexcept(noexcept(x.swap(y))); - -} // std - -*/ - -#include <__config> -#include <__tuple> -#include <cstddef> -#include <type_traits> -#include <__functional_base> -#include <utility> -#include <version> - -#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) -#pragma GCC system_header -#endif - -_LIBCPP_BEGIN_NAMESPACE_STD - -#ifndef _LIBCPP_CXX03_LANG - - -// __tuple_leaf - -template <size_t _Ip, class _Hp, - bool=is_empty<_Hp>::value && !__libcpp_is_final<_Hp>::value - > -class __tuple_leaf; - -template <size_t _Ip, class _Hp, bool _Ep> -inline _LIBCPP_INLINE_VISIBILITY -void swap(__tuple_leaf<_Ip, _Hp, _Ep>& __x, __tuple_leaf<_Ip, _Hp, _Ep>& __y) - _NOEXCEPT_(__is_nothrow_swappable<_Hp>::value) -{ - swap(__x.get(), __y.get()); -} - -template <size_t _Ip, class _Hp, bool> -class __tuple_leaf -{ - _Hp __value_; - - template <class _Tp> - static constexpr bool __can_bind_reference() { -#if __has_keyword(__reference_binds_to_temporary) - return !__reference_binds_to_temporary(_Hp, _Tp); -#else - return true; -#endif - } - - __tuple_leaf& operator=(const __tuple_leaf&); -public: - _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR __tuple_leaf() - _NOEXCEPT_(is_nothrow_default_constructible<_Hp>::value) : __value_() - {static_assert(!is_reference<_Hp>::value, - "Attempted to default construct a reference element in a tuple");} - - template <class _Alloc> - _LIBCPP_INLINE_VISIBILITY - __tuple_leaf(integral_constant<int, 0>, const _Alloc&) - : __value_() - {static_assert(!is_reference<_Hp>::value, - "Attempted to default construct a reference element in a tuple");} - - template <class _Alloc> - _LIBCPP_INLINE_VISIBILITY - __tuple_leaf(integral_constant<int, 1>, const _Alloc& __a) - : __value_(allocator_arg_t(), __a) - {static_assert(!is_reference<_Hp>::value, - "Attempted to default construct a reference element in a tuple");} - - template <class _Alloc> - _LIBCPP_INLINE_VISIBILITY - __tuple_leaf(integral_constant<int, 2>, const _Alloc& __a) - : __value_(__a) - {static_assert(!is_reference<_Hp>::value, - "Attempted to default construct a reference element in a tuple");} - - template <class _Tp, - class = _EnableIf< - _And< - _IsNotSame<__uncvref_t<_Tp>, __tuple_leaf>, - is_constructible<_Hp, _Tp> - >::value - > - > - _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 - explicit __tuple_leaf(_Tp&& __t) _NOEXCEPT_((is_nothrow_constructible<_Hp, _Tp>::value)) - : __value_(_VSTD::forward<_Tp>(__t)) - {static_assert(__can_bind_reference<_Tp&&>(), - "Attempted construction of reference element binds to a temporary whose lifetime has ended");} - - template <class _Tp, class _Alloc> - _LIBCPP_INLINE_VISIBILITY - explicit __tuple_leaf(integral_constant<int, 0>, const _Alloc&, _Tp&& __t) - : __value_(_VSTD::forward<_Tp>(__t)) - {static_assert(__can_bind_reference<_Tp&&>(), - "Attempted construction of reference element binds to a temporary whose lifetime has ended");} - - template <class _Tp, class _Alloc> - _LIBCPP_INLINE_VISIBILITY - explicit __tuple_leaf(integral_constant<int, 1>, const _Alloc& __a, _Tp&& __t) - : __value_(allocator_arg_t(), __a, _VSTD::forward<_Tp>(__t)) - {static_assert(!is_reference<_Hp>::value, - "Attempted to uses-allocator construct a reference element in a tuple");} - - template <class _Tp, class _Alloc> - _LIBCPP_INLINE_VISIBILITY - explicit __tuple_leaf(integral_constant<int, 2>, const _Alloc& __a, _Tp&& __t) - : __value_(_VSTD::forward<_Tp>(__t), __a) - {static_assert(!is_reference<_Hp>::value, - "Attempted to uses-allocator construct a reference element in a tuple");} - - __tuple_leaf(const __tuple_leaf& __t) = default; - __tuple_leaf(__tuple_leaf&& __t) = default; - - template <class _Tp> - _LIBCPP_INLINE_VISIBILITY - __tuple_leaf& - operator=(_Tp&& __t) _NOEXCEPT_((is_nothrow_assignable<_Hp&, _Tp>::value)) - { - __value_ = _VSTD::forward<_Tp>(__t); - return *this; - } - - _LIBCPP_INLINE_VISIBILITY - int swap(__tuple_leaf& __t) _NOEXCEPT_(__is_nothrow_swappable<__tuple_leaf>::value) - { - _VSTD::swap(*this, __t); - return 0; - } - - _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 _Hp& get() _NOEXCEPT {return __value_;} - _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 const _Hp& get() const _NOEXCEPT {return __value_;} -}; - -template <size_t _Ip, class _Hp> -class __tuple_leaf<_Ip, _Hp, true> - : private _Hp -{ - - __tuple_leaf& operator=(const __tuple_leaf&); -public: - _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR __tuple_leaf() - _NOEXCEPT_(is_nothrow_default_constructible<_Hp>::value) {} - - template <class _Alloc> - _LIBCPP_INLINE_VISIBILITY - __tuple_leaf(integral_constant<int, 0>, const _Alloc&) {} - - template <class _Alloc> - _LIBCPP_INLINE_VISIBILITY - __tuple_leaf(integral_constant<int, 1>, const _Alloc& __a) - : _Hp(allocator_arg_t(), __a) {} - - template <class _Alloc> - _LIBCPP_INLINE_VISIBILITY - __tuple_leaf(integral_constant<int, 2>, const _Alloc& __a) - : _Hp(__a) {} - - template <class _Tp, - class = _EnableIf< - _And< - _IsNotSame<__uncvref_t<_Tp>, __tuple_leaf>, - is_constructible<_Hp, _Tp> - >::value - > - > - _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 - explicit __tuple_leaf(_Tp&& __t) _NOEXCEPT_((is_nothrow_constructible<_Hp, _Tp>::value)) - : _Hp(_VSTD::forward<_Tp>(__t)) {} - - template <class _Tp, class _Alloc> - _LIBCPP_INLINE_VISIBILITY - explicit __tuple_leaf(integral_constant<int, 0>, const _Alloc&, _Tp&& __t) - : _Hp(_VSTD::forward<_Tp>(__t)) {} - - template <class _Tp, class _Alloc> - _LIBCPP_INLINE_VISIBILITY - explicit __tuple_leaf(integral_constant<int, 1>, const _Alloc& __a, _Tp&& __t) - : _Hp(allocator_arg_t(), __a, _VSTD::forward<_Tp>(__t)) {} - - template <class _Tp, class _Alloc> - _LIBCPP_INLINE_VISIBILITY - explicit __tuple_leaf(integral_constant<int, 2>, const _Alloc& __a, _Tp&& __t) - : _Hp(_VSTD::forward<_Tp>(__t), __a) {} - - __tuple_leaf(__tuple_leaf const &) = default; - __tuple_leaf(__tuple_leaf &&) = default; - - template <class _Tp> - _LIBCPP_INLINE_VISIBILITY - __tuple_leaf& - operator=(_Tp&& __t) _NOEXCEPT_((is_nothrow_assignable<_Hp&, _Tp>::value)) - { - _Hp::operator=(_VSTD::forward<_Tp>(__t)); - return *this; - } - - _LIBCPP_INLINE_VISIBILITY - int - swap(__tuple_leaf& __t) _NOEXCEPT_(__is_nothrow_swappable<__tuple_leaf>::value) - { - _VSTD::swap(*this, __t); - return 0; - } - - _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 _Hp& get() _NOEXCEPT {return static_cast<_Hp&>(*this);} - _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 const _Hp& get() const _NOEXCEPT {return static_cast<const _Hp&>(*this);} -}; - -template <class ..._Tp> -_LIBCPP_INLINE_VISIBILITY -void __swallow(_Tp&&...) _NOEXCEPT {} - -template <class _Tp> -struct __all_default_constructible; - -template <class ..._Tp> -struct __all_default_constructible<__tuple_types<_Tp...>> - : __all<is_default_constructible<_Tp>::value...> -{ }; - -// __tuple_impl - -template<class _Indx, class ..._Tp> struct __tuple_impl; - -template<size_t ..._Indx, class ..._Tp> -struct _LIBCPP_DECLSPEC_EMPTY_BASES __tuple_impl<__tuple_indices<_Indx...>, _Tp...> - : public __tuple_leaf<_Indx, _Tp>... -{ - _LIBCPP_INLINE_VISIBILITY - _LIBCPP_CONSTEXPR __tuple_impl() - _NOEXCEPT_(__all<is_nothrow_default_constructible<_Tp>::value...>::value) {} - - template <size_t ..._Uf, class ..._Tf, - size_t ..._Ul, class ..._Tl, class ..._Up> - _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 - explicit - __tuple_impl(__tuple_indices<_Uf...>, __tuple_types<_Tf...>, - __tuple_indices<_Ul...>, __tuple_types<_Tl...>, - _Up&&... __u) - _NOEXCEPT_((__all<is_nothrow_constructible<_Tf, _Up>::value...>::value && - __all<is_nothrow_default_constructible<_Tl>::value...>::value)) : - __tuple_leaf<_Uf, _Tf>(_VSTD::forward<_Up>(__u))..., - __tuple_leaf<_Ul, _Tl>()... - {} - - template <class _Alloc, size_t ..._Uf, class ..._Tf, - size_t ..._Ul, class ..._Tl, class ..._Up> - _LIBCPP_INLINE_VISIBILITY - explicit - __tuple_impl(allocator_arg_t, const _Alloc& __a, - __tuple_indices<_Uf...>, __tuple_types<_Tf...>, - __tuple_indices<_Ul...>, __tuple_types<_Tl...>, - _Up&&... __u) : - __tuple_leaf<_Uf, _Tf>(__uses_alloc_ctor<_Tf, _Alloc, _Up>(), __a, - _VSTD::forward<_Up>(__u))..., - __tuple_leaf<_Ul, _Tl>(__uses_alloc_ctor<_Tl, _Alloc>(), __a)... - {} - - template <class _Tuple, - class = typename enable_if - < - __tuple_constructible<_Tuple, tuple<_Tp...> >::value - >::type - > - _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 - __tuple_impl(_Tuple&& __t) _NOEXCEPT_((__all<is_nothrow_constructible<_Tp, typename tuple_element<_Indx, - typename __make_tuple_types<_Tuple>::type>::type>::value...>::value)) - : __tuple_leaf<_Indx, _Tp>(_VSTD::forward<typename tuple_element<_Indx, - typename __make_tuple_types<_Tuple>::type>::type>(_VSTD::get<_Indx>(__t)))... - {} - - template <class _Alloc, class _Tuple, - class = typename enable_if - < - __tuple_constructible<_Tuple, tuple<_Tp...> >::value - >::type - > - _LIBCPP_INLINE_VISIBILITY - __tuple_impl(allocator_arg_t, const _Alloc& __a, _Tuple&& __t) - : __tuple_leaf<_Indx, _Tp>(__uses_alloc_ctor<_Tp, _Alloc, typename tuple_element<_Indx, - typename __make_tuple_types<_Tuple>::type>::type>(), __a, - _VSTD::forward<typename tuple_element<_Indx, - typename __make_tuple_types<_Tuple>::type>::type>(_VSTD::get<_Indx>(__t)))... - {} - - template <class _Tuple> - _LIBCPP_INLINE_VISIBILITY - typename enable_if - < - __tuple_assignable<_Tuple, tuple<_Tp...> >::value, - __tuple_impl& - >::type - operator=(_Tuple&& __t) _NOEXCEPT_((__all<is_nothrow_assignable<_Tp&, typename tuple_element<_Indx, - typename __make_tuple_types<_Tuple>::type>::type>::value...>::value)) - { - __swallow(__tuple_leaf<_Indx, _Tp>::operator=(_VSTD::forward<typename tuple_element<_Indx, - typename __make_tuple_types<_Tuple>::type>::type>(_VSTD::get<_Indx>(__t)))...); - return *this; - } - - __tuple_impl(const __tuple_impl&) = default; - __tuple_impl(__tuple_impl&&) = default; - - _LIBCPP_INLINE_VISIBILITY - __tuple_impl& - operator=(const __tuple_impl& __t) _NOEXCEPT_((__all<is_nothrow_copy_assignable<_Tp>::value...>::value)) - { - __swallow(__tuple_leaf<_Indx, _Tp>::operator=(static_cast<const __tuple_leaf<_Indx, _Tp>&>(__t).get())...); - return *this; - } - - _LIBCPP_INLINE_VISIBILITY - __tuple_impl& - operator=(__tuple_impl&& __t) _NOEXCEPT_((__all<is_nothrow_move_assignable<_Tp>::value...>::value)) - { - __swallow(__tuple_leaf<_Indx, _Tp>::operator=(_VSTD::forward<_Tp>(static_cast<__tuple_leaf<_Indx, _Tp>&>(__t).get()))...); - return *this; - } - - _LIBCPP_INLINE_VISIBILITY - void swap(__tuple_impl& __t) - _NOEXCEPT_(__all<__is_nothrow_swappable<_Tp>::value...>::value) - { - __swallow(__tuple_leaf<_Indx, _Tp>::swap(static_cast<__tuple_leaf<_Indx, _Tp>&>(__t))...); - } -}; - - - -template <class ..._Tp> -class _LIBCPP_TEMPLATE_VIS tuple -{ - typedef __tuple_impl<typename __make_tuple_indices<sizeof...(_Tp)>::type, _Tp...> _BaseT; - - _BaseT __base_; - -#if defined(_LIBCPP_ENABLE_TUPLE_IMPLICIT_REDUCED_ARITY_EXTENSION) - static constexpr bool _EnableImplicitReducedArityExtension = true; -#else - static constexpr bool _EnableImplicitReducedArityExtension = false; -#endif - - template <class ..._Args> - struct _PackExpandsToThisTuple : false_type {}; - - template <class _Arg> - struct _PackExpandsToThisTuple<_Arg> - : is_same<typename __uncvref<_Arg>::type, tuple> {}; - - template <bool _MaybeEnable, class _Dummy = void> - struct _CheckArgsConstructor : __check_tuple_constructor_fail {}; - - template <class _Dummy> - struct _CheckArgsConstructor<true, _Dummy> - { - template <class ..._Args> - static constexpr bool __enable_default() { - return __all<is_default_constructible<_Args>::value...>::value; - } - - template <class ..._Args> - static constexpr bool __enable_explicit() { - return - __tuple_constructible< - tuple<_Args...>, - typename __make_tuple_types<tuple, - sizeof...(_Args) < sizeof...(_Tp) ? - sizeof...(_Args) : - sizeof...(_Tp)>::type - >::value && - !__tuple_convertible< - tuple<_Args...>, - typename __make_tuple_types<tuple, - sizeof...(_Args) < sizeof...(_Tp) ? - sizeof...(_Args) : - sizeof...(_Tp)>::type - >::value && - __all_default_constructible< - typename __make_tuple_types<tuple, sizeof...(_Tp), - sizeof...(_Args) < sizeof...(_Tp) ? - sizeof...(_Args) : - sizeof...(_Tp)>::type - >::value; - } - - template <class ..._Args> - static constexpr bool __enable_implicit() { - return - __tuple_constructible< - tuple<_Args...>, - typename __make_tuple_types<tuple, - sizeof...(_Args) < sizeof...(_Tp) ? - sizeof...(_Args) : - sizeof...(_Tp)>::type - >::value && - __tuple_convertible< - tuple<_Args...>, - typename __make_tuple_types<tuple, - sizeof...(_Args) < sizeof...(_Tp) ? - sizeof...(_Args) : - sizeof...(_Tp)>::type - >::value && - __all_default_constructible< - typename __make_tuple_types<tuple, sizeof...(_Tp), - sizeof...(_Args) < sizeof...(_Tp) ? - sizeof...(_Args) : - sizeof...(_Tp)>::type - >::value; - } - }; - - template <bool _MaybeEnable, - bool = sizeof...(_Tp) == 1, - class _Dummy = void> - struct _CheckTupleLikeConstructor : __check_tuple_constructor_fail {}; - - template <class _Dummy> - struct _CheckTupleLikeConstructor<true, false, _Dummy> - { - template <class _Tuple> - static constexpr bool __enable_implicit() { - return __tuple_constructible<_Tuple, tuple>::value - && __tuple_convertible<_Tuple, tuple>::value; - } - - template <class _Tuple> - static constexpr bool __enable_explicit() { - return __tuple_constructible<_Tuple, tuple>::value - && !__tuple_convertible<_Tuple, tuple>::value; - } - }; - - template <class _Dummy> - struct _CheckTupleLikeConstructor<true, true, _Dummy> - { - // This trait is used to disable the tuple-like constructor when - // the UTypes... constructor should be selected instead. - // See LWG issue #2549. - template <class _Tuple> - using _PreferTupleLikeConstructor = _Or< - // Don't attempt the two checks below if the tuple we are given - // has the same type as this tuple. - _IsSame<__uncvref_t<_Tuple>, tuple>, - _Lazy<_And, - _Not<is_constructible<_Tp..., _Tuple>>, - _Not<is_convertible<_Tuple, _Tp...>> - > - >; - - template <class _Tuple> - static constexpr bool __enable_implicit() { - return _And< - __tuple_constructible<_Tuple, tuple>, - __tuple_convertible<_Tuple, tuple>, - _PreferTupleLikeConstructor<_Tuple> - >::value; - } - - template <class _Tuple> - static constexpr bool __enable_explicit() { - return _And< - __tuple_constructible<_Tuple, tuple>, - _PreferTupleLikeConstructor<_Tuple>, - _Not<__tuple_convertible<_Tuple, tuple>> - >::value; - } - }; - - template <class _Tuple, bool _DisableIfLValue> - using _EnableImplicitTupleLikeConstructor = _EnableIf< - _CheckTupleLikeConstructor< - __tuple_like_with_size<_Tuple, sizeof...(_Tp)>::value - && !_PackExpandsToThisTuple<_Tuple>::value - && (!is_lvalue_reference<_Tuple>::value || !_DisableIfLValue) - >::template __enable_implicit<_Tuple>(), - bool - >; - - template <class _Tuple, bool _DisableIfLValue> - using _EnableExplicitTupleLikeConstructor = _EnableIf< - _CheckTupleLikeConstructor< - __tuple_like_with_size<_Tuple, sizeof...(_Tp)>::value - && !_PackExpandsToThisTuple<_Tuple>::value - && (!is_lvalue_reference<_Tuple>::value || !_DisableIfLValue) - >::template __enable_explicit<_Tuple>(), - bool - >; - template <size_t _Jp, class ..._Up> friend _LIBCPP_CONSTEXPR_AFTER_CXX11 - typename tuple_element<_Jp, tuple<_Up...> >::type& get(tuple<_Up...>&) _NOEXCEPT; - template <size_t _Jp, class ..._Up> friend _LIBCPP_CONSTEXPR_AFTER_CXX11 - const typename tuple_element<_Jp, tuple<_Up...> >::type& get(const tuple<_Up...>&) _NOEXCEPT; - template <size_t _Jp, class ..._Up> friend _LIBCPP_CONSTEXPR_AFTER_CXX11 - typename tuple_element<_Jp, tuple<_Up...> >::type&& get(tuple<_Up...>&&) _NOEXCEPT; - template <size_t _Jp, class ..._Up> friend _LIBCPP_CONSTEXPR_AFTER_CXX11 - const typename tuple_element<_Jp, tuple<_Up...> >::type&& get(const tuple<_Up...>&&) _NOEXCEPT; -public: - - template <bool _Dummy = true, class = typename enable_if< - _CheckArgsConstructor<_Dummy>::template __enable_default<_Tp...>() - >::type> - _LIBCPP_INLINE_VISIBILITY - _LIBCPP_CONSTEXPR tuple() - _NOEXCEPT_(__all<is_nothrow_default_constructible<_Tp>::value...>::value) {} - - tuple(tuple const&) = default; - tuple(tuple&&) = default; - - template <class _AllocArgT, class _Alloc, bool _Dummy = true, class = _EnableIf< - _And< - _IsSame<allocator_arg_t, _AllocArgT>, - __dependent_type<is_default_constructible<_Tp>, _Dummy>... - >::value - > - > - _LIBCPP_INLINE_VISIBILITY - tuple(_AllocArgT, _Alloc const& __a) - : __base_(allocator_arg_t(), __a, - __tuple_indices<>(), __tuple_types<>(), - typename __make_tuple_indices<sizeof...(_Tp), 0>::type(), - __tuple_types<_Tp...>()) {} - - template <bool _Dummy = true, - typename enable_if - < - _CheckArgsConstructor< - _Dummy - >::template __enable_implicit<_Tp const&...>(), - bool - >::type = false - > - _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 - tuple(const _Tp& ... __t) _NOEXCEPT_((__all<is_nothrow_copy_constructible<_Tp>::value...>::value)) - : __base_(typename __make_tuple_indices<sizeof...(_Tp)>::type(), - typename __make_tuple_types<tuple, sizeof...(_Tp)>::type(), - typename __make_tuple_indices<0>::type(), - typename __make_tuple_types<tuple, 0>::type(), - __t... - ) {} - - template <bool _Dummy = true, - typename enable_if - < - _CheckArgsConstructor< - _Dummy - >::template __enable_explicit<_Tp const&...>(), - bool - >::type = false - > - _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 - explicit tuple(const _Tp& ... __t) _NOEXCEPT_((__all<is_nothrow_copy_constructible<_Tp>::value...>::value)) - : __base_(typename __make_tuple_indices<sizeof...(_Tp)>::type(), - typename __make_tuple_types<tuple, sizeof...(_Tp)>::type(), - typename __make_tuple_indices<0>::type(), - typename __make_tuple_types<tuple, 0>::type(), - __t... - ) {} - - template <class _Alloc, bool _Dummy = true, - typename enable_if - < - _CheckArgsConstructor< - _Dummy - >::template __enable_implicit<_Tp const&...>(), - bool - >::type = false - > - _LIBCPP_INLINE_VISIBILITY - tuple(allocator_arg_t, const _Alloc& __a, const _Tp& ... __t) - : __base_(allocator_arg_t(), __a, - typename __make_tuple_indices<sizeof...(_Tp)>::type(), - typename __make_tuple_types<tuple, sizeof...(_Tp)>::type(), - typename __make_tuple_indices<0>::type(), - typename __make_tuple_types<tuple, 0>::type(), - __t... - ) {} - - template <class _Alloc, bool _Dummy = true, - typename enable_if - < - _CheckArgsConstructor< - _Dummy - >::template __enable_explicit<_Tp const&...>(), - bool - >::type = false - > - _LIBCPP_INLINE_VISIBILITY - explicit - tuple(allocator_arg_t, const _Alloc& __a, const _Tp& ... __t) - : __base_(allocator_arg_t(), __a, - typename __make_tuple_indices<sizeof...(_Tp)>::type(), - typename __make_tuple_types<tuple, sizeof...(_Tp)>::type(), - typename __make_tuple_indices<0>::type(), - typename __make_tuple_types<tuple, 0>::type(), - __t... - ) {} - - template <class ..._Up, - bool _PackIsTuple = _PackExpandsToThisTuple<_Up...>::value, - typename enable_if - < - _CheckArgsConstructor< - sizeof...(_Up) == sizeof...(_Tp) - && !_PackIsTuple - >::template __enable_implicit<_Up...>() || - _CheckArgsConstructor< - _EnableImplicitReducedArityExtension - && sizeof...(_Up) < sizeof...(_Tp) - && !_PackIsTuple - >::template __enable_implicit<_Up...>(), - bool - >::type = false - > - _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 - tuple(_Up&&... __u) - _NOEXCEPT_(( - is_nothrow_constructible<_BaseT, - typename __make_tuple_indices<sizeof...(_Up)>::type, - typename __make_tuple_types<tuple, sizeof...(_Up)>::type, - typename __make_tuple_indices<sizeof...(_Tp), sizeof...(_Up)>::type, - typename __make_tuple_types<tuple, sizeof...(_Tp), sizeof...(_Up)>::type, - _Up... - >::value - )) - : __base_(typename __make_tuple_indices<sizeof...(_Up)>::type(), - typename __make_tuple_types<tuple, sizeof...(_Up)>::type(), - typename __make_tuple_indices<sizeof...(_Tp), sizeof...(_Up)>::type(), - typename __make_tuple_types<tuple, sizeof...(_Tp), sizeof...(_Up)>::type(), - _VSTD::forward<_Up>(__u)...) {} - - template <class ..._Up, - typename enable_if - < - _CheckArgsConstructor< - sizeof...(_Up) <= sizeof...(_Tp) - && !_PackExpandsToThisTuple<_Up...>::value - >::template __enable_explicit<_Up...>() || - _CheckArgsConstructor< - !_EnableImplicitReducedArityExtension - && sizeof...(_Up) < sizeof...(_Tp) - && !_PackExpandsToThisTuple<_Up...>::value - >::template __enable_implicit<_Up...>(), - bool - >::type = false - > - _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 - explicit - tuple(_Up&&... __u) - _NOEXCEPT_(( - is_nothrow_constructible<_BaseT, - typename __make_tuple_indices<sizeof...(_Up)>::type, - typename __make_tuple_types<tuple, sizeof...(_Up)>::type, - typename __make_tuple_indices<sizeof...(_Tp), sizeof...(_Up)>::type, - typename __make_tuple_types<tuple, sizeof...(_Tp), sizeof...(_Up)>::type, - _Up... - >::value - )) - : __base_(typename __make_tuple_indices<sizeof...(_Up)>::type(), - typename __make_tuple_types<tuple, sizeof...(_Up)>::type(), - typename __make_tuple_indices<sizeof...(_Tp), sizeof...(_Up)>::type(), - typename __make_tuple_types<tuple, sizeof...(_Tp), sizeof...(_Up)>::type(), - _VSTD::forward<_Up>(__u)...) {} - - template <class _Alloc, class ..._Up, - typename enable_if - < - _CheckArgsConstructor< - sizeof...(_Up) == sizeof...(_Tp) && - !_PackExpandsToThisTuple<_Up...>::value - >::template __enable_implicit<_Up...>(), - bool - >::type = false - > - _LIBCPP_INLINE_VISIBILITY - tuple(allocator_arg_t, const _Alloc& __a, _Up&&... __u) - : __base_(allocator_arg_t(), __a, - typename __make_tuple_indices<sizeof...(_Up)>::type(), - typename __make_tuple_types<tuple, sizeof...(_Up)>::type(), - typename __make_tuple_indices<sizeof...(_Tp), sizeof...(_Up)>::type(), - typename __make_tuple_types<tuple, sizeof...(_Tp), sizeof...(_Up)>::type(), - _VSTD::forward<_Up>(__u)...) {} - - template <class _Alloc, class ..._Up, - typename enable_if - < - _CheckArgsConstructor< - sizeof...(_Up) == sizeof...(_Tp) && - !_PackExpandsToThisTuple<_Up...>::value - >::template __enable_explicit<_Up...>(), - bool - >::type = false - > - _LIBCPP_INLINE_VISIBILITY - explicit - tuple(allocator_arg_t, const _Alloc& __a, _Up&&... __u) - : __base_(allocator_arg_t(), __a, - typename __make_tuple_indices<sizeof...(_Up)>::type(), - typename __make_tuple_types<tuple, sizeof...(_Up)>::type(), - typename __make_tuple_indices<sizeof...(_Tp), sizeof...(_Up)>::type(), - typename __make_tuple_types<tuple, sizeof...(_Tp), sizeof...(_Up)>::type(), - _VSTD::forward<_Up>(__u)...) {} - - template <class _Tuple, _EnableImplicitTupleLikeConstructor<_Tuple, true> = false> - _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 - tuple(_Tuple&& __t) _NOEXCEPT_((is_nothrow_constructible<_BaseT, _Tuple>::value)) - : __base_(_VSTD::forward<_Tuple>(__t)) {} - - template <class _Tuple, _EnableImplicitTupleLikeConstructor<const _Tuple&, false> = false> - _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 - tuple(const _Tuple& __t) _NOEXCEPT_((is_nothrow_constructible<_BaseT, const _Tuple&>::value)) - : __base_(__t) {} - template <class _Tuple, _EnableExplicitTupleLikeConstructor<_Tuple, true> = false> - _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 - explicit - tuple(_Tuple&& __t) _NOEXCEPT_((is_nothrow_constructible<_BaseT, _Tuple>::value)) - : __base_(_VSTD::forward<_Tuple>(__t)) {} - - template <class _Tuple, _EnableExplicitTupleLikeConstructor<const _Tuple&, false> = false> - _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 - explicit - tuple(const _Tuple& __t) _NOEXCEPT_((is_nothrow_constructible<_BaseT, const _Tuple&>::value)) - : __base_(__t) {} - - template <class _Alloc, class _Tuple, - typename enable_if - < - _CheckTupleLikeConstructor< - __tuple_like_with_size<_Tuple, sizeof...(_Tp)>::value - >::template __enable_implicit<_Tuple>(), - bool - >::type = false - > - _LIBCPP_INLINE_VISIBILITY - tuple(allocator_arg_t, const _Alloc& __a, _Tuple&& __t) - : __base_(allocator_arg_t(), __a, _VSTD::forward<_Tuple>(__t)) {} - - template <class _Alloc, class _Tuple, - typename enable_if - < - _CheckTupleLikeConstructor< - __tuple_like_with_size<_Tuple, sizeof...(_Tp)>::value - >::template __enable_explicit<_Tuple>(), - bool - >::type = false - > - _LIBCPP_INLINE_VISIBILITY - explicit - tuple(allocator_arg_t, const _Alloc& __a, _Tuple&& __t) - : __base_(allocator_arg_t(), __a, _VSTD::forward<_Tuple>(__t)) {} - - using _CanCopyAssign = __all<is_copy_assignable<_Tp>::value...>; - using _CanMoveAssign = __all<is_move_assignable<_Tp>::value...>; - - _LIBCPP_INLINE_VISIBILITY - tuple& operator=(typename conditional<_CanCopyAssign::value, tuple, __nat>::type const& __t) - _NOEXCEPT_((__all<is_nothrow_copy_assignable<_Tp>::value...>::value)) - { - __base_.operator=(__t.__base_); - return *this; - } - - _LIBCPP_INLINE_VISIBILITY - tuple& operator=(typename conditional<_CanMoveAssign::value, tuple, __nat>::type&& __t) - _NOEXCEPT_((__all<is_nothrow_move_assignable<_Tp>::value...>::value)) - { - __base_.operator=(static_cast<_BaseT&&>(__t.__base_)); - return *this; - } - - template <class _Tuple, - class = typename enable_if - < - __tuple_assignable<_Tuple, tuple>::value - >::type - > - _LIBCPP_INLINE_VISIBILITY - tuple& - operator=(_Tuple&& __t) _NOEXCEPT_((is_nothrow_assignable<_BaseT&, _Tuple>::value)) - { - __base_.operator=(_VSTD::forward<_Tuple>(__t)); - return *this; - } - - _LIBCPP_INLINE_VISIBILITY - void swap(tuple& __t) _NOEXCEPT_(__all<__is_nothrow_swappable<_Tp>::value...>::value) - {__base_.swap(__t.__base_);} -}; - -template <> -class _LIBCPP_TEMPLATE_VIS tuple<> -{ -public: - _LIBCPP_INLINE_VISIBILITY - _LIBCPP_CONSTEXPR tuple() _NOEXCEPT = default; - template <class _Alloc> - _LIBCPP_INLINE_VISIBILITY - tuple(allocator_arg_t, const _Alloc&) _NOEXCEPT {} - template <class _Alloc> - _LIBCPP_INLINE_VISIBILITY - tuple(allocator_arg_t, const _Alloc&, const tuple&) _NOEXCEPT {} - template <class _Up> - _LIBCPP_INLINE_VISIBILITY - tuple(array<_Up, 0>) _NOEXCEPT {} - template <class _Alloc, class _Up> - _LIBCPP_INLINE_VISIBILITY - tuple(allocator_arg_t, const _Alloc&, array<_Up, 0>) _NOEXCEPT {} - _LIBCPP_INLINE_VISIBILITY - void swap(tuple&) _NOEXCEPT {} -}; - -#ifndef _LIBCPP_HAS_NO_DEDUCTION_GUIDES -template <class ..._Tp> -tuple(_Tp...) -> tuple<_Tp...>; -template <class _Tp1, class _Tp2> -tuple(pair<_Tp1, _Tp2>) -> tuple<_Tp1, _Tp2>; -template <class _Alloc, class ..._Tp> -tuple(allocator_arg_t, _Alloc, _Tp...) -> tuple<_Tp...>; -template <class _Alloc, class _Tp1, class _Tp2> -tuple(allocator_arg_t, _Alloc, pair<_Tp1, _Tp2>) -> tuple<_Tp1, _Tp2>; -template <class _Alloc, class ..._Tp> -tuple(allocator_arg_t, _Alloc, tuple<_Tp...>) -> tuple<_Tp...>; -#endif - -template <class ..._Tp> -inline _LIBCPP_INLINE_VISIBILITY -typename enable_if -< - __all<__is_swappable<_Tp>::value...>::value, - void ->::type -swap(tuple<_Tp...>& __t, tuple<_Tp...>& __u) - _NOEXCEPT_(__all<__is_nothrow_swappable<_Tp>::value...>::value) - {__t.swap(__u);} - -// get - -template <size_t _Ip, class ..._Tp> -inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 -typename tuple_element<_Ip, tuple<_Tp...> >::type& -get(tuple<_Tp...>& __t) _NOEXCEPT -{ - typedef _LIBCPP_NODEBUG_TYPE typename tuple_element<_Ip, tuple<_Tp...> >::type type; - return static_cast<__tuple_leaf<_Ip, type>&>(__t.__base_).get(); -} - -template <size_t _Ip, class ..._Tp> -inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 -const typename tuple_element<_Ip, tuple<_Tp...> >::type& -get(const tuple<_Tp...>& __t) _NOEXCEPT -{ - typedef _LIBCPP_NODEBUG_TYPE typename tuple_element<_Ip, tuple<_Tp...> >::type type; - return static_cast<const __tuple_leaf<_Ip, type>&>(__t.__base_).get(); -} - -template <size_t _Ip, class ..._Tp> -inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 -typename tuple_element<_Ip, tuple<_Tp...> >::type&& -get(tuple<_Tp...>&& __t) _NOEXCEPT -{ - typedef _LIBCPP_NODEBUG_TYPE typename tuple_element<_Ip, tuple<_Tp...> >::type type; - return static_cast<type&&>( - static_cast<__tuple_leaf<_Ip, type>&&>(__t.__base_).get()); -} - -template <size_t _Ip, class ..._Tp> -inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 -const typename tuple_element<_Ip, tuple<_Tp...> >::type&& -get(const tuple<_Tp...>&& __t) _NOEXCEPT -{ - typedef _LIBCPP_NODEBUG_TYPE typename tuple_element<_Ip, tuple<_Tp...> >::type type; - return static_cast<const type&&>( - static_cast<const __tuple_leaf<_Ip, type>&&>(__t.__base_).get()); -} - -#if _LIBCPP_STD_VER > 11 - -namespace __find_detail { - -static constexpr size_t __not_found = -1; -static constexpr size_t __ambiguous = __not_found - 1; - -inline _LIBCPP_INLINE_VISIBILITY -constexpr size_t __find_idx_return(size_t __curr_i, size_t __res, bool __matches) { - return !__matches ? __res : - (__res == __not_found ? __curr_i : __ambiguous); -} - -template <size_t _Nx> -inline _LIBCPP_INLINE_VISIBILITY -constexpr size_t __find_idx(size_t __i, const bool (&__matches)[_Nx]) { - return __i == _Nx ? __not_found : - __find_idx_return(__i, __find_idx(__i + 1, __matches), __matches[__i]); -} - -template <class _T1, class ..._Args> -struct __find_exactly_one_checked { - static constexpr bool __matches[sizeof...(_Args)] = {is_same<_T1, _Args>::value...}; - static constexpr size_t value = __find_detail::__find_idx(0, __matches); - static_assert(value != __not_found, "type not found in type list" ); - static_assert(value != __ambiguous, "type occurs more than once in type list"); -}; - -template <class _T1> -struct __find_exactly_one_checked<_T1> { - static_assert(!is_same<_T1, _T1>::value, "type not in empty type list"); -}; - -} // namespace __find_detail; - -template <typename _T1, typename... _Args> -struct __find_exactly_one_t - : public __find_detail::__find_exactly_one_checked<_T1, _Args...> { -}; - -template <class _T1, class... _Args> -inline _LIBCPP_INLINE_VISIBILITY -constexpr _T1& get(tuple<_Args...>& __tup) noexcept -{ - return _VSTD::get<__find_exactly_one_t<_T1, _Args...>::value>(__tup); -} - -template <class _T1, class... _Args> -inline _LIBCPP_INLINE_VISIBILITY -constexpr _T1 const& get(tuple<_Args...> const& __tup) noexcept -{ - return _VSTD::get<__find_exactly_one_t<_T1, _Args...>::value>(__tup); -} - -template <class _T1, class... _Args> -inline _LIBCPP_INLINE_VISIBILITY -constexpr _T1&& get(tuple<_Args...>&& __tup) noexcept -{ - return _VSTD::get<__find_exactly_one_t<_T1, _Args...>::value>(_VSTD::move(__tup)); -} - -template <class _T1, class... _Args> -inline _LIBCPP_INLINE_VISIBILITY -constexpr _T1 const&& get(tuple<_Args...> const&& __tup) noexcept -{ - return _VSTD::get<__find_exactly_one_t<_T1, _Args...>::value>(_VSTD::move(__tup)); -} - -#endif - -// tie - -template <class ..._Tp> -inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 -tuple<_Tp&...> -tie(_Tp&... __t) _NOEXCEPT -{ - return tuple<_Tp&...>(__t...); -} - -template <class _Up> -struct __ignore_t -{ - template <class _Tp> - _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 - const __ignore_t& operator=(_Tp&&) const {return *this;} -}; - -namespace { - _LIBCPP_INLINE_VAR constexpr __ignore_t<unsigned char> ignore = __ignore_t<unsigned char>(); -} - -template <class... _Tp> -inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 -tuple<typename __unwrap_ref_decay<_Tp>::type...> -make_tuple(_Tp&&... __t) -{ - return tuple<typename __unwrap_ref_decay<_Tp>::type...>(_VSTD::forward<_Tp>(__t)...); -} - -template <class... _Tp> -inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 -tuple<_Tp&&...> -forward_as_tuple(_Tp&&... __t) _NOEXCEPT -{ - return tuple<_Tp&&...>(_VSTD::forward<_Tp>(__t)...); -} - -template <size_t _Ip> -struct __tuple_equal -{ - template <class _Tp, class _Up> - _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 - bool operator()(const _Tp& __x, const _Up& __y) - { - return __tuple_equal<_Ip - 1>()(__x, __y) && _VSTD::get<_Ip-1>(__x) == _VSTD::get<_Ip-1>(__y); - } -}; - -template <> -struct __tuple_equal<0> -{ - template <class _Tp, class _Up> - _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 - bool operator()(const _Tp&, const _Up&) - { - return true; - } -}; - -template <class ..._Tp, class ..._Up> -inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 -bool -operator==(const tuple<_Tp...>& __x, const tuple<_Up...>& __y) -{ - static_assert (sizeof...(_Tp) == sizeof...(_Up), "Can't compare tuples of different sizes"); - return __tuple_equal<sizeof...(_Tp)>()(__x, __y); -} - -template <class ..._Tp, class ..._Up> -inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 -bool -operator!=(const tuple<_Tp...>& __x, const tuple<_Up...>& __y) -{ - return !(__x == __y); -} - -template <size_t _Ip> -struct __tuple_less -{ - template <class _Tp, class _Up> - _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 - bool operator()(const _Tp& __x, const _Up& __y) - { - const size_t __idx = tuple_size<_Tp>::value - _Ip; - if (_VSTD::get<__idx>(__x) < _VSTD::get<__idx>(__y)) - return true; - if (_VSTD::get<__idx>(__y) < _VSTD::get<__idx>(__x)) - return false; - return __tuple_less<_Ip-1>()(__x, __y); - } -}; - -template <> -struct __tuple_less<0> -{ - template <class _Tp, class _Up> - _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 - bool operator()(const _Tp&, const _Up&) - { - return false; - } -}; - -template <class ..._Tp, class ..._Up> -inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 -bool -operator<(const tuple<_Tp...>& __x, const tuple<_Up...>& __y) -{ - static_assert (sizeof...(_Tp) == sizeof...(_Up), "Can't compare tuples of different sizes"); - return __tuple_less<sizeof...(_Tp)>()(__x, __y); -} - -template <class ..._Tp, class ..._Up> -inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 -bool -operator>(const tuple<_Tp...>& __x, const tuple<_Up...>& __y) -{ - return __y < __x; -} - -template <class ..._Tp, class ..._Up> -inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 -bool -operator>=(const tuple<_Tp...>& __x, const tuple<_Up...>& __y) -{ - return !(__x < __y); -} - -template <class ..._Tp, class ..._Up> -inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 -bool -operator<=(const tuple<_Tp...>& __x, const tuple<_Up...>& __y) -{ - return !(__y < __x); -} - -// tuple_cat - -template <class _Tp, class _Up> struct __tuple_cat_type; - -template <class ..._Ttypes, class ..._Utypes> -struct __tuple_cat_type<tuple<_Ttypes...>, __tuple_types<_Utypes...> > -{ - typedef _LIBCPP_NODEBUG_TYPE tuple<_Ttypes..., _Utypes...> type; -}; - -template <class _ResultTuple, bool _Is_Tuple0TupleLike, class ..._Tuples> -struct __tuple_cat_return_1 -{ -}; - -template <class ..._Types, class _Tuple0> -struct __tuple_cat_return_1<tuple<_Types...>, true, _Tuple0> -{ - typedef _LIBCPP_NODEBUG_TYPE typename __tuple_cat_type<tuple<_Types...>, - typename __make_tuple_types<typename __uncvref<_Tuple0>::type>::type>::type - type; -}; - -template <class ..._Types, class _Tuple0, class _Tuple1, class ..._Tuples> -struct __tuple_cat_return_1<tuple<_Types...>, true, _Tuple0, _Tuple1, _Tuples...> - : public __tuple_cat_return_1< - typename __tuple_cat_type< - tuple<_Types...>, - typename __make_tuple_types<typename __uncvref<_Tuple0>::type>::type - >::type, - __tuple_like<typename remove_reference<_Tuple1>::type>::value, - _Tuple1, _Tuples...> -{ -}; - -template <class ..._Tuples> struct __tuple_cat_return; - -template <class _Tuple0, class ..._Tuples> -struct __tuple_cat_return<_Tuple0, _Tuples...> - : public __tuple_cat_return_1<tuple<>, - __tuple_like<typename remove_reference<_Tuple0>::type>::value, _Tuple0, - _Tuples...> -{ -}; - -template <> -struct __tuple_cat_return<> -{ - typedef _LIBCPP_NODEBUG_TYPE tuple<> type; -}; - -inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 -tuple<> -tuple_cat() -{ - return tuple<>(); -} - -template <class _Rp, class _Indices, class _Tuple0, class ..._Tuples> -struct __tuple_cat_return_ref_imp; - -template <class ..._Types, size_t ..._I0, class _Tuple0> -struct __tuple_cat_return_ref_imp<tuple<_Types...>, __tuple_indices<_I0...>, _Tuple0> -{ - typedef _LIBCPP_NODEBUG_TYPE typename remove_reference<_Tuple0>::type _T0; - typedef tuple<_Types..., typename __apply_cv<_Tuple0, - typename tuple_element<_I0, _T0>::type>::type&&...> type; -}; - -template <class ..._Types, size_t ..._I0, class _Tuple0, class _Tuple1, class ..._Tuples> -struct __tuple_cat_return_ref_imp<tuple<_Types...>, __tuple_indices<_I0...>, - _Tuple0, _Tuple1, _Tuples...> - : public __tuple_cat_return_ref_imp< - tuple<_Types..., typename __apply_cv<_Tuple0, - typename tuple_element<_I0, - typename remove_reference<_Tuple0>::type>::type>::type&&...>, - typename __make_tuple_indices<tuple_size<typename - remove_reference<_Tuple1>::type>::value>::type, - _Tuple1, _Tuples...> -{ -}; - -template <class _Tuple0, class ..._Tuples> -struct __tuple_cat_return_ref - : public __tuple_cat_return_ref_imp<tuple<>, - typename __make_tuple_indices< - tuple_size<typename remove_reference<_Tuple0>::type>::value - >::type, _Tuple0, _Tuples...> -{ -}; - -template <class _Types, class _I0, class _J0> -struct __tuple_cat; - -template <class ..._Types, size_t ..._I0, size_t ..._J0> -struct __tuple_cat<tuple<_Types...>, __tuple_indices<_I0...>, __tuple_indices<_J0...> > -{ - template <class _Tuple0> - _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 - typename __tuple_cat_return_ref<tuple<_Types...>&&, _Tuple0&&>::type - operator()(tuple<_Types...> __t, _Tuple0&& __t0) - { - return forward_as_tuple(_VSTD::forward<_Types>(_VSTD::get<_I0>(__t))..., - _VSTD::get<_J0>(_VSTD::forward<_Tuple0>(__t0))...); - } - - template <class _Tuple0, class _Tuple1, class ..._Tuples> - _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 - typename __tuple_cat_return_ref<tuple<_Types...>&&, _Tuple0&&, _Tuple1&&, _Tuples&&...>::type - operator()(tuple<_Types...> __t, _Tuple0&& __t0, _Tuple1&& __t1, _Tuples&& ...__tpls) - { - typedef _LIBCPP_NODEBUG_TYPE typename remove_reference<_Tuple0>::type _T0; - typedef _LIBCPP_NODEBUG_TYPE typename remove_reference<_Tuple1>::type _T1; - return __tuple_cat< - tuple<_Types..., typename __apply_cv<_Tuple0, typename tuple_element<_J0, _T0>::type>::type&&...>, - typename __make_tuple_indices<sizeof ...(_Types) + tuple_size<_T0>::value>::type, - typename __make_tuple_indices<tuple_size<_T1>::value>::type>() - (forward_as_tuple( - _VSTD::forward<_Types>(_VSTD::get<_I0>(__t))..., - _VSTD::get<_J0>(_VSTD::forward<_Tuple0>(__t0))... - ), - _VSTD::forward<_Tuple1>(__t1), - _VSTD::forward<_Tuples>(__tpls)...); - } -}; - -template <class _Tuple0, class... _Tuples> -inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 -typename __tuple_cat_return<_Tuple0, _Tuples...>::type -tuple_cat(_Tuple0&& __t0, _Tuples&&... __tpls) -{ - typedef _LIBCPP_NODEBUG_TYPE typename remove_reference<_Tuple0>::type _T0; - return __tuple_cat<tuple<>, __tuple_indices<>, - typename __make_tuple_indices<tuple_size<_T0>::value>::type>() - (tuple<>(), _VSTD::forward<_Tuple0>(__t0), - _VSTD::forward<_Tuples>(__tpls)...); -} - -template <class ..._Tp, class _Alloc> -struct _LIBCPP_TEMPLATE_VIS uses_allocator<tuple<_Tp...>, _Alloc> - : true_type {}; - -template <class _T1, class _T2> -template <class... _Args1, class... _Args2, size_t ..._I1, size_t ..._I2> -inline _LIBCPP_INLINE_VISIBILITY -pair<_T1, _T2>::pair(piecewise_construct_t, - tuple<_Args1...>& __first_args, tuple<_Args2...>& __second_args, - __tuple_indices<_I1...>, __tuple_indices<_I2...>) - : first(_VSTD::forward<_Args1>(_VSTD::get<_I1>( __first_args))...), - second(_VSTD::forward<_Args2>(_VSTD::get<_I2>(__second_args))...) -{ -} - -#if _LIBCPP_STD_VER > 14 -template <class _Tp> -_LIBCPP_INLINE_VAR constexpr size_t tuple_size_v = tuple_size<_Tp>::value; - -#define _LIBCPP_NOEXCEPT_RETURN(...) noexcept(noexcept(__VA_ARGS__)) { return __VA_ARGS__; } - -template <class _Fn, class _Tuple, size_t ..._Id> -inline _LIBCPP_INLINE_VISIBILITY -constexpr decltype(auto) __apply_tuple_impl(_Fn && __f, _Tuple && __t, - __tuple_indices<_Id...>) -_LIBCPP_NOEXCEPT_RETURN( - _VSTD::__invoke_constexpr( - _VSTD::forward<_Fn>(__f), - _VSTD::get<_Id>(_VSTD::forward<_Tuple>(__t))...) -) - -template <class _Fn, class _Tuple> -inline _LIBCPP_INLINE_VISIBILITY -constexpr decltype(auto) apply(_Fn && __f, _Tuple && __t) -_LIBCPP_NOEXCEPT_RETURN( - _VSTD::__apply_tuple_impl( - _VSTD::forward<_Fn>(__f), _VSTD::forward<_Tuple>(__t), - typename __make_tuple_indices<tuple_size_v<remove_reference_t<_Tuple>>>::type{}) -) - -template <class _Tp, class _Tuple, size_t... _Idx> -inline _LIBCPP_INLINE_VISIBILITY -constexpr _Tp __make_from_tuple_impl(_Tuple&& __t, __tuple_indices<_Idx...>) -_LIBCPP_NOEXCEPT_RETURN( - _Tp(_VSTD::get<_Idx>(_VSTD::forward<_Tuple>(__t))...) -) - -template <class _Tp, class _Tuple> -inline _LIBCPP_INLINE_VISIBILITY -constexpr _Tp make_from_tuple(_Tuple&& __t) -_LIBCPP_NOEXCEPT_RETURN( - _VSTD::__make_from_tuple_impl<_Tp>(_VSTD::forward<_Tuple>(__t), - typename __make_tuple_indices<tuple_size_v<remove_reference_t<_Tuple>>>::type{}) -) - -#undef _LIBCPP_NOEXCEPT_RETURN - -#endif // _LIBCPP_STD_VER > 14 - -#endif // !defined(_LIBCPP_CXX03_LANG) - -_LIBCPP_END_NAMESPACE_STD - -#endif // _LIBCPP_TUPLE |