mirror of
https://github.com/ziglang/zig.git
synced 2024-11-26 14:20:25 +00:00
06ee65af9e
release/18.x branch, commit 78b99c73ee4b96fe9ce0e294d4632326afb2db42 This adds the flag `-D_LIBCPP_HARDENING_MODE` which is determined based on the Zig optimization mode. This commit also fixes libunwind, libcxx, and libcxxabi to properly report sub compilation errors.
1464 lines
65 KiB
C++
Vendored
1464 lines
65 KiB
C++
Vendored
// -*- C++ -*-
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//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP_TUPLE
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#define _LIBCPP_TUPLE
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// clang-format off
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/*
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tuple synopsis
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namespace std
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{
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template <class... T>
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class tuple {
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public:
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explicit(see-below) constexpr tuple();
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explicit(see-below) tuple(const T&...); // constexpr in C++14
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template <class... U>
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explicit(see-below) tuple(U&&...); // constexpr in C++14
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tuple(const tuple&) = default;
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tuple(tuple&&) = default;
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template<class... UTypes>
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constexpr explicit(see-below) tuple(tuple<UTypes...>&); // C++23
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template <class... U>
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explicit(see-below) tuple(const tuple<U...>&); // constexpr in C++14
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template <class... U>
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explicit(see-below) tuple(tuple<U...>&&); // constexpr in C++14
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template<class... UTypes>
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constexpr explicit(see-below) tuple(const tuple<UTypes...>&&); // C++23
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template<class U1, class U2>
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constexpr explicit(see-below) tuple(pair<U1, U2>&); // iff sizeof...(Types) == 2 // C++23
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template <class U1, class U2>
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explicit(see-below) tuple(const pair<U1, U2>&); // iff sizeof...(T) == 2 // constexpr in C++14
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template <class U1, class U2>
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explicit(see-below) tuple(pair<U1, U2>&&); // iff sizeof...(T) == 2 // constexpr in C++14
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template<class U1, class U2>
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constexpr explicit(see-below) tuple(const pair<U1, U2>&&); // iff sizeof...(Types) == 2 // C++23
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// allocator-extended constructors
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template <class Alloc>
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tuple(allocator_arg_t, const Alloc& a);
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template <class Alloc>
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explicit(see-below) tuple(allocator_arg_t, const Alloc& a, const T&...); // constexpr in C++20
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template <class Alloc, class... U>
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explicit(see-below) tuple(allocator_arg_t, const Alloc& a, U&&...); // constexpr in C++20
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template <class Alloc>
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tuple(allocator_arg_t, const Alloc& a, const tuple&); // constexpr in C++20
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template <class Alloc>
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tuple(allocator_arg_t, const Alloc& a, tuple&&); // constexpr in C++20
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template<class Alloc, class... UTypes>
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constexpr explicit(see-below)
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tuple(allocator_arg_t, const Alloc& a, tuple<UTypes...>&); // C++23
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template <class Alloc, class... U>
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explicit(see-below) tuple(allocator_arg_t, const Alloc& a, const tuple<U...>&); // constexpr in C++20
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template <class Alloc, class... U>
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explicit(see-below) tuple(allocator_arg_t, const Alloc& a, tuple<U...>&&); // constexpr in C++20
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template<class Alloc, class... UTypes>
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constexpr explicit(see-below)
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tuple(allocator_arg_t, const Alloc& a, const tuple<UTypes...>&&); // C++23
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template<class Alloc, class U1, class U2>
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constexpr explicit(see-below)
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tuple(allocator_arg_t, const Alloc& a, pair<U1, U2>&); // C++23
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template <class Alloc, class U1, class U2>
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explicit(see-below) tuple(allocator_arg_t, const Alloc& a, const pair<U1, U2>&); // constexpr in C++20
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template <class Alloc, class U1, class U2>
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explicit(see-below) tuple(allocator_arg_t, const Alloc& a, pair<U1, U2>&&); // constexpr in C++20
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template<class Alloc, class U1, class U2>
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constexpr explicit(see-below)
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tuple(allocator_arg_t, const Alloc& a, const pair<U1, U2>&&); // C++23
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tuple& operator=(const tuple&); // constexpr in C++20
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constexpr const tuple& operator=(const tuple&) const; // C++23
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tuple& operator=(tuple&&) noexcept(is_nothrow_move_assignable_v<T> && ...); // constexpr in C++20
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constexpr const tuple& operator=(tuple&&) const; // C++23
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template <class... U>
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tuple& operator=(const tuple<U...>&); // constexpr in C++20
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template<class... UTypes>
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constexpr const tuple& operator=(const tuple<UTypes...>&) const; // C++23
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template <class... U>
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tuple& operator=(tuple<U...>&&); // constexpr in C++20
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template<class... UTypes>
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constexpr const tuple& operator=(tuple<UTypes...>&&) const; // C++23
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template <class U1, class U2>
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tuple& operator=(const pair<U1, U2>&); // iff sizeof...(T) == 2 // constexpr in C++20
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template<class U1, class U2>
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constexpr const tuple& operator=(const pair<U1, U2>&) const; // iff sizeof...(Types) == 2 // C++23
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template <class U1, class U2>
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tuple& operator=(pair<U1, U2>&&); // iff sizeof...(T) == 2 // constexpr in C++20
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template<class U1, class U2>
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constexpr const tuple& operator=(pair<U1, U2>&&) const; // iff sizeof...(Types) == 2 // C++23
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template<class U, size_t N>
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tuple& operator=(array<U, N> const&) // iff sizeof...(T) == N, EXTENSION
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template<class U, size_t N>
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tuple& operator=(array<U, N>&&) // iff sizeof...(T) == N, EXTENSION
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void swap(tuple&) noexcept(AND(swap(declval<T&>(), declval<T&>())...)); // constexpr in C++20
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constexpr void swap(const tuple&) const noexcept(see-below); // C++23
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};
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template<class... TTypes, class... UTypes, template<class> class TQual, template<class> class UQual> // since C++23
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requires requires { typename tuple<common_reference_t<TQual<TTypes>, UQual<UTypes>>...>; }
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struct basic_common_reference<tuple<TTypes...>, tuple<UTypes...>, TQual, UQual> {
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using type = tuple<common_reference_t<TQual<TTypes>, UQual<UTypes>>...>;
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};
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template<class... TTypes, class... UTypes> // since C++23
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requires requires { typename tuple<common_type_t<TTypes, UTypes>...>; }
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struct common_type<tuple<TTypes...>, tuple<UTypes...>> {
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using type = tuple<common_type_t<TTypes, UTypes>...>;
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};
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template <class ...T>
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tuple(T...) -> tuple<T...>; // since C++17
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template <class T1, class T2>
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tuple(pair<T1, T2>) -> tuple<T1, T2>; // since C++17
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template <class Alloc, class ...T>
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tuple(allocator_arg_t, Alloc, T...) -> tuple<T...>; // since C++17
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template <class Alloc, class T1, class T2>
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tuple(allocator_arg_t, Alloc, pair<T1, T2>) -> tuple<T1, T2>; // since C++17
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template <class Alloc, class ...T>
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tuple(allocator_arg_t, Alloc, tuple<T...>) -> tuple<T...>; // since C++17
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inline constexpr unspecified ignore;
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template <class... T> tuple<V...> make_tuple(T&&...); // constexpr in C++14
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template <class... T> tuple<ATypes...> forward_as_tuple(T&&...) noexcept; // constexpr in C++14
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template <class... T> tuple<T&...> tie(T&...) noexcept; // constexpr in C++14
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template <class... Tuples> tuple<CTypes...> tuple_cat(Tuples&&... tpls); // constexpr in C++14
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// [tuple.apply], calling a function with a tuple of arguments:
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template <class F, class Tuple>
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constexpr decltype(auto) apply(F&& f, Tuple&& t) noexcept(see below); // C++17 noexcept since C++23
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template <class T, class Tuple>
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constexpr T make_from_tuple(Tuple&& t); // C++17
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// 20.4.1.4, tuple helper classes:
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template <class T> struct tuple_size; // undefined
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template <class... T> struct tuple_size<tuple<T...>>;
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template <class T>
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inline constexpr size_t tuple_size_v = tuple_size<T>::value; // C++17
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template <size_t I, class T> struct tuple_element; // undefined
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template <size_t I, class... T> struct tuple_element<I, tuple<T...>>;
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template <size_t I, class T>
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using tuple_element_t = typename tuple_element <I, T>::type; // C++14
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// 20.4.1.5, element access:
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template <size_t I, class... T>
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typename tuple_element<I, tuple<T...>>::type&
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get(tuple<T...>&) noexcept; // constexpr in C++14
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template <size_t I, class... T>
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const typename tuple_element<I, tuple<T...>>::type&
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get(const tuple<T...>&) noexcept; // constexpr in C++14
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template <size_t I, class... T>
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typename tuple_element<I, tuple<T...>>::type&&
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get(tuple<T...>&&) noexcept; // constexpr in C++14
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template <size_t I, class... T>
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const typename tuple_element<I, tuple<T...>>::type&&
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get(const tuple<T...>&&) noexcept; // constexpr in C++14
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template <class T1, class... T>
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constexpr T1& get(tuple<T...>&) noexcept; // C++14
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template <class T1, class... T>
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constexpr const T1& get(const tuple<T...>&) noexcept; // C++14
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template <class T1, class... T>
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constexpr T1&& get(tuple<T...>&&) noexcept; // C++14
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template <class T1, class... T>
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constexpr const T1&& get(const tuple<T...>&&) noexcept; // C++14
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// 20.4.1.6, relational operators:
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template<class... T, class... U> bool operator==(const tuple<T...>&, const tuple<U...>&); // constexpr in C++14
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template<class... T, class... U> bool operator<(const tuple<T...>&, const tuple<U...>&); // constexpr in C++14, removed in C++20
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template<class... T, class... U> bool operator!=(const tuple<T...>&, const tuple<U...>&); // constexpr in C++14, removed in C++20
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template<class... T, class... U> bool operator>(const tuple<T...>&, const tuple<U...>&); // constexpr in C++14, removed in C++20
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template<class... T, class... U> bool operator<=(const tuple<T...>&, const tuple<U...>&); // constexpr in C++14, removed in C++20
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template<class... T, class... U> bool operator>=(const tuple<T...>&, const tuple<U...>&); // constexpr in C++14, removed in C++20
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template<class... T, class... U>
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constexpr common_comparison_category_t<synth-three-way-result<T, U>...>
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operator<=>(const tuple<T...>&, const tuple<U...>&); // since C++20
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template <class... Types, class Alloc>
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struct uses_allocator<tuple<Types...>, Alloc>;
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template <class... Types>
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void
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swap(tuple<Types...>& x, tuple<Types...>& y) noexcept(noexcept(x.swap(y)));
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template <class... Types>
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constexpr void swap(const tuple<Types...>& x, const tuple<Types...>& y) noexcept(see-below); // C++23
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} // std
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*/
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// clang-format on
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#include <__assert> // all public C++ headers provide the assertion handler
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#include <__compare/common_comparison_category.h>
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#include <__compare/synth_three_way.h>
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#include <__config>
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#include <__functional/invoke.h>
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#include <__fwd/array.h>
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#include <__fwd/get.h>
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#include <__fwd/tuple.h>
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#include <__memory/allocator_arg_t.h>
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#include <__memory/uses_allocator.h>
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#include <__tuple/make_tuple_types.h>
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#include <__tuple/sfinae_helpers.h>
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#include <__tuple/tuple_element.h>
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#include <__tuple/tuple_indices.h>
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#include <__tuple/tuple_like_ext.h>
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#include <__tuple/tuple_size.h>
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#include <__tuple/tuple_types.h>
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#include <__type_traits/apply_cv.h>
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#include <__type_traits/common_reference.h>
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#include <__type_traits/common_type.h>
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#include <__type_traits/conditional.h>
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#include <__type_traits/conjunction.h>
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#include <__type_traits/copy_cvref.h>
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#include <__type_traits/disjunction.h>
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#include <__type_traits/is_arithmetic.h>
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#include <__type_traits/is_assignable.h>
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#include <__type_traits/is_constructible.h>
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#include <__type_traits/is_convertible.h>
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#include <__type_traits/is_copy_assignable.h>
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#include <__type_traits/is_copy_constructible.h>
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#include <__type_traits/is_default_constructible.h>
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#include <__type_traits/is_empty.h>
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#include <__type_traits/is_final.h>
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#include <__type_traits/is_implicitly_default_constructible.h>
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#include <__type_traits/is_move_assignable.h>
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#include <__type_traits/is_move_constructible.h>
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#include <__type_traits/is_nothrow_assignable.h>
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#include <__type_traits/is_nothrow_constructible.h>
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#include <__type_traits/is_nothrow_copy_assignable.h>
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#include <__type_traits/is_nothrow_copy_constructible.h>
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#include <__type_traits/is_nothrow_default_constructible.h>
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#include <__type_traits/is_nothrow_move_assignable.h>
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#include <__type_traits/is_reference.h>
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#include <__type_traits/is_same.h>
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#include <__type_traits/is_swappable.h>
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#include <__type_traits/lazy.h>
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#include <__type_traits/maybe_const.h>
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#include <__type_traits/nat.h>
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#include <__type_traits/negation.h>
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#include <__type_traits/remove_cvref.h>
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#include <__type_traits/remove_reference.h>
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#include <__type_traits/unwrap_ref.h>
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#include <__utility/forward.h>
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#include <__utility/integer_sequence.h>
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#include <__utility/move.h>
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#include <__utility/pair.h>
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#include <__utility/piecewise_construct.h>
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#include <__utility/swap.h>
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#include <cstddef>
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#include <version>
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// standard-mandated includes
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// [tuple.syn]
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#include <compare>
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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# pragma GCC system_header
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#endif
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_LIBCPP_PUSH_MACROS
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#include <__undef_macros>
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_LIBCPP_BEGIN_NAMESPACE_STD
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#ifndef _LIBCPP_CXX03_LANG
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// __tuple_leaf
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template <size_t _Ip, class _Hp, bool = is_empty<_Hp>::value && !__libcpp_is_final<_Hp>::value >
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class __tuple_leaf;
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template <size_t _Ip, class _Hp, bool _Ep>
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inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 void
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swap(__tuple_leaf<_Ip, _Hp, _Ep>& __x, __tuple_leaf<_Ip, _Hp, _Ep>& __y)
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_NOEXCEPT_(__is_nothrow_swappable<_Hp>::value) {
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swap(__x.get(), __y.get());
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}
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template <size_t _Ip, class _Hp, bool _Ep>
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_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 void
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swap(const __tuple_leaf<_Ip, _Hp, _Ep>& __x, const __tuple_leaf<_Ip, _Hp, _Ep>& __y)
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_NOEXCEPT_(__is_nothrow_swappable<const _Hp>::value) {
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swap(__x.get(), __y.get());
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}
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template <size_t _Ip, class _Hp, bool>
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class __tuple_leaf {
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_Hp __value_;
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template <class _Tp>
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static _LIBCPP_HIDE_FROM_ABI constexpr bool __can_bind_reference() {
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# if __has_keyword(__reference_binds_to_temporary)
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return !__reference_binds_to_temporary(_Hp, _Tp);
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# else
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return true;
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# endif
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}
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_LIBCPP_CONSTEXPR_SINCE_CXX14 __tuple_leaf& operator=(const __tuple_leaf&);
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public:
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_LIBCPP_HIDE_FROM_ABI constexpr __tuple_leaf() _NOEXCEPT_(is_nothrow_default_constructible<_Hp>::value) : __value_() {
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static_assert(!is_reference<_Hp>::value, "Attempted to default construct a reference element in a tuple");
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}
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template <class _Alloc>
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_LIBCPP_HIDE_FROM_ABI constexpr __tuple_leaf(integral_constant<int, 0>, const _Alloc&) : __value_() {
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static_assert(!is_reference<_Hp>::value, "Attempted to default construct a reference element in a tuple");
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}
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template <class _Alloc>
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_LIBCPP_HIDE_FROM_ABI constexpr __tuple_leaf(integral_constant<int, 1>, const _Alloc& __a)
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: __value_(allocator_arg_t(), __a) {
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static_assert(!is_reference<_Hp>::value, "Attempted to default construct a reference element in a tuple");
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}
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template <class _Alloc>
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_LIBCPP_HIDE_FROM_ABI constexpr __tuple_leaf(integral_constant<int, 2>, const _Alloc& __a) : __value_(__a) {
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static_assert(!is_reference<_Hp>::value, "Attempted to default construct a reference element in a tuple");
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}
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template <class _Tp,
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class = __enable_if_t<
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_And< _IsNotSame<__remove_cvref_t<_Tp>, __tuple_leaf>, is_constructible<_Hp, _Tp> >::value > >
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_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 explicit __tuple_leaf(_Tp&& __t)
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_NOEXCEPT_((is_nothrow_constructible<_Hp, _Tp>::value))
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: __value_(std::forward<_Tp>(__t)) {
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static_assert(__can_bind_reference<_Tp&&>(),
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"Attempted construction of reference element binds to a temporary whose lifetime has ended");
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}
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template <class _Tp, class _Alloc>
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_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 explicit __tuple_leaf(
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integral_constant<int, 0>, const _Alloc&, _Tp&& __t)
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: __value_(std::forward<_Tp>(__t)) {
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static_assert(__can_bind_reference<_Tp&&>(),
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"Attempted construction of reference element binds to a temporary whose lifetime has ended");
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}
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template <class _Tp, class _Alloc>
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_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 explicit __tuple_leaf(
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integral_constant<int, 1>, const _Alloc& __a, _Tp&& __t)
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: __value_(allocator_arg_t(), __a, std::forward<_Tp>(__t)) {
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static_assert(!is_reference<_Hp>::value, "Attempted to uses-allocator construct a reference element in a tuple");
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}
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template <class _Tp, class _Alloc>
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_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 explicit __tuple_leaf(
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integral_constant<int, 2>, const _Alloc& __a, _Tp&& __t)
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: __value_(std::forward<_Tp>(__t), __a) {
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static_assert(!is_reference<_Hp>::value, "Attempted to uses-allocator construct a reference element in a tuple");
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}
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_LIBCPP_HIDE_FROM_ABI __tuple_leaf(const __tuple_leaf& __t) = default;
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_LIBCPP_HIDE_FROM_ABI __tuple_leaf(__tuple_leaf&& __t) = default;
|
|
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 int swap(__tuple_leaf& __t)
|
|
_NOEXCEPT_(__is_nothrow_swappable<__tuple_leaf>::value) {
|
|
std::swap(*this, __t);
|
|
return 0;
|
|
}
|
|
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 int swap(const __tuple_leaf& __t) const
|
|
_NOEXCEPT_(__is_nothrow_swappable<const __tuple_leaf>::value) {
|
|
std::swap(*this, __t);
|
|
return 0;
|
|
}
|
|
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 _Hp& get() _NOEXCEPT { return __value_; }
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 const _Hp& get() const _NOEXCEPT { return __value_; }
|
|
};
|
|
|
|
template <size_t _Ip, class _Hp>
|
|
class __tuple_leaf<_Ip, _Hp, true> : private _Hp {
|
|
_LIBCPP_CONSTEXPR_SINCE_CXX14 __tuple_leaf& operator=(const __tuple_leaf&);
|
|
|
|
public:
|
|
_LIBCPP_HIDE_FROM_ABI constexpr __tuple_leaf() _NOEXCEPT_(is_nothrow_default_constructible<_Hp>::value) {}
|
|
|
|
template <class _Alloc>
|
|
_LIBCPP_HIDE_FROM_ABI constexpr __tuple_leaf(integral_constant<int, 0>, const _Alloc&) {}
|
|
|
|
template <class _Alloc>
|
|
_LIBCPP_HIDE_FROM_ABI constexpr __tuple_leaf(integral_constant<int, 1>, const _Alloc& __a)
|
|
: _Hp(allocator_arg_t(), __a) {}
|
|
|
|
template <class _Alloc>
|
|
_LIBCPP_HIDE_FROM_ABI constexpr __tuple_leaf(integral_constant<int, 2>, const _Alloc& __a) : _Hp(__a) {}
|
|
|
|
template <class _Tp,
|
|
class = __enable_if_t<
|
|
_And< _IsNotSame<__remove_cvref_t<_Tp>, __tuple_leaf>, is_constructible<_Hp, _Tp> >::value > >
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 explicit __tuple_leaf(_Tp&& __t)
|
|
_NOEXCEPT_((is_nothrow_constructible<_Hp, _Tp>::value))
|
|
: _Hp(std::forward<_Tp>(__t)) {}
|
|
|
|
template <class _Tp, class _Alloc>
|
|
_LIBCPP_HIDE_FROM_ABI constexpr explicit __tuple_leaf(integral_constant<int, 0>, const _Alloc&, _Tp&& __t)
|
|
: _Hp(std::forward<_Tp>(__t)) {}
|
|
|
|
template <class _Tp, class _Alloc>
|
|
_LIBCPP_HIDE_FROM_ABI constexpr explicit __tuple_leaf(integral_constant<int, 1>, const _Alloc& __a, _Tp&& __t)
|
|
: _Hp(allocator_arg_t(), __a, std::forward<_Tp>(__t)) {}
|
|
|
|
template <class _Tp, class _Alloc>
|
|
_LIBCPP_HIDE_FROM_ABI constexpr explicit __tuple_leaf(integral_constant<int, 2>, const _Alloc& __a, _Tp&& __t)
|
|
: _Hp(std::forward<_Tp>(__t), __a) {}
|
|
|
|
__tuple_leaf(__tuple_leaf const&) = default;
|
|
__tuple_leaf(__tuple_leaf&&) = default;
|
|
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 int swap(__tuple_leaf& __t)
|
|
_NOEXCEPT_(__is_nothrow_swappable<__tuple_leaf>::value) {
|
|
std::swap(*this, __t);
|
|
return 0;
|
|
}
|
|
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 int swap(const __tuple_leaf& __rhs) const
|
|
_NOEXCEPT_(__is_nothrow_swappable<const __tuple_leaf>::value) {
|
|
std::swap(*this, __rhs);
|
|
return 0;
|
|
}
|
|
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 _Hp& get() _NOEXCEPT { return static_cast<_Hp&>(*this); }
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 const _Hp& get() const _NOEXCEPT {
|
|
return static_cast<const _Hp&>(*this);
|
|
}
|
|
};
|
|
|
|
template <class... _Tp>
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 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_HIDE_FROM_ABI 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_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 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>(std::forward<_Up>(__u))..., __tuple_leaf<_Ul, _Tl>()... {}
|
|
|
|
template <class _Alloc, size_t... _Uf, class... _Tf, size_t... _Ul, class... _Tl, class... _Up>
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 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, std::forward<_Up>(__u))...,
|
|
__tuple_leaf<_Ul, _Tl>(__uses_alloc_ctor<_Tl, _Alloc>(), __a)... {}
|
|
|
|
template <class _Tuple, class = __enable_if_t<__tuple_constructible<_Tuple, tuple<_Tp...> >::value> >
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 __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>(
|
|
std::forward<typename tuple_element<_Indx, typename __make_tuple_types<_Tuple>::type>::type>(
|
|
std::get<_Indx>(__t)))... {}
|
|
|
|
template <class _Alloc, class _Tuple, class = __enable_if_t<__tuple_constructible<_Tuple, tuple<_Tp...> >::value> >
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 __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,
|
|
std::forward<typename tuple_element<_Indx, typename __make_tuple_types<_Tuple>::type>::type>(
|
|
std::get<_Indx>(__t)))... {}
|
|
|
|
__tuple_impl(const __tuple_impl&) = default;
|
|
__tuple_impl(__tuple_impl&&) = default;
|
|
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 void swap(__tuple_impl& __t)
|
|
_NOEXCEPT_(__all<__is_nothrow_swappable<_Tp>::value...>::value) {
|
|
std::__swallow(__tuple_leaf<_Indx, _Tp>::swap(static_cast<__tuple_leaf<_Indx, _Tp>&>(__t))...);
|
|
}
|
|
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 void swap(const __tuple_impl& __t) const
|
|
_NOEXCEPT_(__all<__is_nothrow_swappable<const _Tp>::value...>::value) {
|
|
std::__swallow(__tuple_leaf<_Indx, _Tp>::swap(static_cast<const __tuple_leaf<_Indx, _Tp>&>(__t))...);
|
|
}
|
|
};
|
|
|
|
template <class _Dest, class _Source, size_t... _Np>
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 void
|
|
__memberwise_copy_assign(_Dest& __dest, _Source const& __source, __tuple_indices<_Np...>) {
|
|
std::__swallow(((std::get<_Np>(__dest) = std::get<_Np>(__source)), void(), 0)...);
|
|
}
|
|
|
|
template <class _Dest, class _Source, class... _Up, size_t... _Np>
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 void
|
|
__memberwise_forward_assign(_Dest& __dest, _Source&& __source, __tuple_types<_Up...>, __tuple_indices<_Np...>) {
|
|
std::__swallow(((std::get<_Np>(__dest) = std::forward<_Up>(std::get<_Np>(__source))), void(), 0)...);
|
|
}
|
|
|
|
template <class... _Tp>
|
|
class _LIBCPP_TEMPLATE_VIS tuple {
|
|
typedef __tuple_impl<typename __make_tuple_indices<sizeof...(_Tp)>::type, _Tp...> _BaseT;
|
|
|
|
_BaseT __base_;
|
|
|
|
template <size_t _Jp, class... _Up>
|
|
friend _LIBCPP_CONSTEXPR_SINCE_CXX14 typename tuple_element<_Jp, tuple<_Up...> >::type& get(tuple<_Up...>&) _NOEXCEPT;
|
|
template <size_t _Jp, class... _Up>
|
|
friend _LIBCPP_CONSTEXPR_SINCE_CXX14 const typename tuple_element<_Jp, tuple<_Up...> >::type&
|
|
get(const tuple<_Up...>&) _NOEXCEPT;
|
|
template <size_t _Jp, class... _Up>
|
|
friend _LIBCPP_CONSTEXPR_SINCE_CXX14 typename tuple_element<_Jp, tuple<_Up...> >::type&&
|
|
get(tuple<_Up...>&&) _NOEXCEPT;
|
|
template <size_t _Jp, class... _Up>
|
|
friend _LIBCPP_CONSTEXPR_SINCE_CXX14 const typename tuple_element<_Jp, tuple<_Up...> >::type&&
|
|
get(const tuple<_Up...>&&) _NOEXCEPT;
|
|
|
|
public:
|
|
// [tuple.cnstr]
|
|
|
|
_LIBCPP_DIAGNOSTIC_PUSH
|
|
_LIBCPP_CLANG_DIAGNOSTIC_IGNORED("-Wc++20-extensions")
|
|
_LIBCPP_GCC_DIAGNOSTIC_IGNORED("-Wc++20-extensions")
|
|
|
|
// tuple() constructors (including allocator_arg_t variants)
|
|
template <template <class...> class _IsImpDefault = __is_implicitly_default_constructible,
|
|
template <class...> class _IsDefault = is_default_constructible,
|
|
__enable_if_t< _And< _IsDefault<_Tp>... >::value, int> = 0>
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR explicit(_Not<_Lazy<_And, _IsImpDefault<_Tp>...> >::value) tuple()
|
|
_NOEXCEPT_(_And<is_nothrow_default_constructible<_Tp>...>::value) {}
|
|
|
|
template <class _Alloc,
|
|
template <class...> class _IsImpDefault = __is_implicitly_default_constructible,
|
|
template <class...> class _IsDefault = is_default_constructible,
|
|
__enable_if_t< _And< _IsDefault<_Tp>... >::value, int> = 0>
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 explicit(_Not<_Lazy<_And, _IsImpDefault<_Tp>...> >::value)
|
|
tuple(allocator_arg_t, _Alloc const& __a)
|
|
: __base_(allocator_arg_t(),
|
|
__a,
|
|
__tuple_indices<>(),
|
|
__tuple_types<>(),
|
|
typename __make_tuple_indices<sizeof...(_Tp), 0>::type(),
|
|
__tuple_types<_Tp...>()) {}
|
|
|
|
// tuple(const T&...) constructors (including allocator_arg_t variants)
|
|
template <template <class...> class _And = _And,
|
|
__enable_if_t< _And< _BoolConstant<sizeof...(_Tp) >= 1>, is_copy_constructible<_Tp>... >::value, int> = 0>
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 explicit(
|
|
_Not<_Lazy<_And, is_convertible<const _Tp&, _Tp>...> >::value) tuple(const _Tp&... __t)
|
|
_NOEXCEPT_(_And<is_nothrow_copy_constructible<_Tp>...>::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,
|
|
template <class...> class _And = _And,
|
|
__enable_if_t< _And< _BoolConstant<sizeof...(_Tp) >= 1>, is_copy_constructible<_Tp>... >::value, int> = 0>
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 explicit(
|
|
_Not<_Lazy<_And, is_convertible<const _Tp&, _Tp>...> >::value)
|
|
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...) {}
|
|
|
|
// tuple(U&& ...) constructors (including allocator_arg_t variants)
|
|
template <class... _Up>
|
|
struct _IsThisTuple : false_type {};
|
|
template <class _Up>
|
|
struct _IsThisTuple<_Up> : is_same<__remove_cvref_t<_Up>, tuple> {};
|
|
|
|
template <class... _Up>
|
|
struct _EnableUTypesCtor
|
|
: _And< _BoolConstant<sizeof...(_Tp) >= 1>,
|
|
_Not<_IsThisTuple<_Up...> >, // extension to allow mis-behaved user constructors
|
|
is_constructible<_Tp, _Up>... > {};
|
|
|
|
template <class... _Up,
|
|
__enable_if_t< _And< _BoolConstant<sizeof...(_Up) == sizeof...(_Tp)>, _EnableUTypesCtor<_Up...> >::value,
|
|
int> = 0>
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 explicit(_Not<_Lazy<_And, is_convertible<_Up, _Tp>...> >::value)
|
|
tuple(_Up&&... __u) _NOEXCEPT_((_And<is_nothrow_constructible<_Tp, _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(),
|
|
std::forward<_Up>(__u)...) {}
|
|
|
|
template <class _Alloc,
|
|
class... _Up,
|
|
__enable_if_t< _And< _BoolConstant<sizeof...(_Up) == sizeof...(_Tp)>, _EnableUTypesCtor<_Up...> >::value,
|
|
int> = 0>
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 explicit(_Not<_Lazy<_And, is_convertible<_Up, _Tp>...> >::value)
|
|
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(),
|
|
std::forward<_Up>(__u)...) {}
|
|
|
|
// Copy and move constructors (including the allocator_arg_t variants)
|
|
tuple(const tuple&) = default;
|
|
tuple(tuple&&) = default;
|
|
|
|
template <class _Alloc,
|
|
template <class...> class _And = _And,
|
|
__enable_if_t< _And<is_copy_constructible<_Tp>...>::value, int> = 0>
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 tuple(allocator_arg_t, const _Alloc& __alloc, const tuple& __t)
|
|
: __base_(allocator_arg_t(), __alloc, __t) {}
|
|
|
|
template <class _Alloc,
|
|
template <class...> class _And = _And,
|
|
__enable_if_t< _And<is_move_constructible<_Tp>...>::value, int> = 0>
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 tuple(allocator_arg_t, const _Alloc& __alloc, tuple&& __t)
|
|
: __base_(allocator_arg_t(), __alloc, std::move(__t)) {}
|
|
|
|
// tuple(const tuple<U...>&) constructors (including allocator_arg_t variants)
|
|
|
|
template <class _OtherTuple, class _DecayedOtherTuple = __remove_cvref_t<_OtherTuple>, class = void>
|
|
struct _EnableCtorFromUTypesTuple : false_type {};
|
|
|
|
template <class _OtherTuple, class... _Up>
|
|
struct _EnableCtorFromUTypesTuple<
|
|
_OtherTuple,
|
|
tuple<_Up...>,
|
|
// the length of the packs needs to checked first otherwise the 2 packs cannot be expanded simultaneously below
|
|
__enable_if_t<sizeof...(_Up) == sizeof...(_Tp)>>
|
|
: _And<
|
|
// the two conditions below are not in spec. The purpose is to disable the UTypes Ctor when copy/move Ctor
|
|
// can work. Otherwise, is_constructible can trigger hard error in those cases
|
|
// https://godbolt.org/z/M94cGdKcE
|
|
_Not<is_same<_OtherTuple, const tuple&> >,
|
|
_Not<is_same<_OtherTuple, tuple&&> >,
|
|
is_constructible<_Tp, __copy_cvref_t<_OtherTuple, _Up> >...,
|
|
_Lazy<_Or,
|
|
_BoolConstant<sizeof...(_Tp) != 1>,
|
|
// _Tp and _Up are 1-element packs - the pack expansions look
|
|
// weird to avoid tripping up the type traits in degenerate cases
|
|
_Lazy<_And,
|
|
_Not<is_same<_Tp, _Up> >...,
|
|
_Not<is_convertible<_OtherTuple, _Tp> >...,
|
|
_Not<is_constructible<_Tp, _OtherTuple> >... > > > {};
|
|
|
|
template <class... _Up, __enable_if_t< _And< _EnableCtorFromUTypesTuple<const tuple<_Up...>&> >::value, int> = 0>
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 explicit(
|
|
_Not<_Lazy<_And, is_convertible<const _Up&, _Tp>...> >::value) tuple(const tuple<_Up...>& __t)
|
|
_NOEXCEPT_((_And<is_nothrow_constructible<_Tp, const _Up&>...>::value))
|
|
: __base_(__t) {}
|
|
|
|
template <class... _Up,
|
|
class _Alloc,
|
|
__enable_if_t< _And< _EnableCtorFromUTypesTuple<const tuple<_Up...>&> >::value, int> = 0>
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 explicit(
|
|
_Not<_Lazy<_And, is_convertible<const _Up&, _Tp>...> >::value)
|
|
tuple(allocator_arg_t, const _Alloc& __a, const tuple<_Up...>& __t)
|
|
: __base_(allocator_arg_t(), __a, __t) {}
|
|
|
|
# if _LIBCPP_STD_VER >= 23
|
|
// tuple(tuple<U...>&) constructors (including allocator_arg_t variants)
|
|
|
|
template <class... _Up, enable_if_t< _EnableCtorFromUTypesTuple<tuple<_Up...>&>::value>* = nullptr>
|
|
_LIBCPP_HIDE_FROM_ABI constexpr explicit(!_Lazy<_And, is_convertible<_Up&, _Tp>...>::value) tuple(tuple<_Up...>& __t)
|
|
: __base_(__t) {}
|
|
|
|
template <class _Alloc, class... _Up, enable_if_t< _EnableCtorFromUTypesTuple<tuple<_Up...>&>::value>* = nullptr>
|
|
_LIBCPP_HIDE_FROM_ABI constexpr explicit(!_Lazy<_And, is_convertible<_Up&, _Tp>...>::value)
|
|
tuple(allocator_arg_t, const _Alloc& __alloc, tuple<_Up...>& __t)
|
|
: __base_(allocator_arg_t(), __alloc, __t) {}
|
|
# endif // _LIBCPP_STD_VER >= 23
|
|
|
|
// tuple(tuple<U...>&&) constructors (including allocator_arg_t variants)
|
|
template <class... _Up, __enable_if_t< _And< _EnableCtorFromUTypesTuple<tuple<_Up...>&&> >::value, int> = 0>
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 explicit(_Not<_Lazy<_And, is_convertible<_Up, _Tp>...> >::value)
|
|
tuple(tuple<_Up...>&& __t) _NOEXCEPT_((_And<is_nothrow_constructible<_Tp, _Up>...>::value))
|
|
: __base_(std::move(__t)) {}
|
|
|
|
template <class _Alloc,
|
|
class... _Up,
|
|
__enable_if_t< _And< _EnableCtorFromUTypesTuple<tuple<_Up...>&&> >::value, int> = 0>
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 explicit(_Not<_Lazy<_And, is_convertible<_Up, _Tp>...> >::value)
|
|
tuple(allocator_arg_t, const _Alloc& __a, tuple<_Up...>&& __t)
|
|
: __base_(allocator_arg_t(), __a, std::move(__t)) {}
|
|
|
|
# if _LIBCPP_STD_VER >= 23
|
|
// tuple(const tuple<U...>&&) constructors (including allocator_arg_t variants)
|
|
|
|
template <class... _Up, enable_if_t< _EnableCtorFromUTypesTuple<const tuple<_Up...>&&>::value>* = nullptr>
|
|
_LIBCPP_HIDE_FROM_ABI constexpr explicit(!_Lazy<_And, is_convertible<const _Up&&, _Tp>...>::value)
|
|
tuple(const tuple<_Up...>&& __t)
|
|
: __base_(std::move(__t)) {}
|
|
|
|
template <class _Alloc,
|
|
class... _Up,
|
|
enable_if_t< _EnableCtorFromUTypesTuple<const tuple<_Up...>&&>::value>* = nullptr>
|
|
_LIBCPP_HIDE_FROM_ABI constexpr explicit(!_Lazy<_And, is_convertible<const _Up&&, _Tp>...>::value)
|
|
tuple(allocator_arg_t, const _Alloc& __alloc, const tuple<_Up...>&& __t)
|
|
: __base_(allocator_arg_t(), __alloc, std::move(__t)) {}
|
|
# endif // _LIBCPP_STD_VER >= 23
|
|
|
|
// tuple(const pair<U1, U2>&) constructors (including allocator_arg_t variants)
|
|
|
|
template <template <class...> class _Pred,
|
|
class _Pair,
|
|
class _DecayedPair = __remove_cvref_t<_Pair>,
|
|
class _Tuple = tuple>
|
|
struct _CtorPredicateFromPair : false_type {};
|
|
|
|
template <template <class...> class _Pred, class _Pair, class _Up1, class _Up2, class _Tp1, class _Tp2>
|
|
struct _CtorPredicateFromPair<_Pred, _Pair, pair<_Up1, _Up2>, tuple<_Tp1, _Tp2> >
|
|
: _And< _Pred<_Tp1, __copy_cvref_t<_Pair, _Up1> >, _Pred<_Tp2, __copy_cvref_t<_Pair, _Up2> > > {};
|
|
|
|
template <class _Pair>
|
|
struct _EnableCtorFromPair : _CtorPredicateFromPair<is_constructible, _Pair> {};
|
|
|
|
template <class _Pair>
|
|
struct _NothrowConstructibleFromPair : _CtorPredicateFromPair<is_nothrow_constructible, _Pair> {};
|
|
|
|
template <class _Pair, class _DecayedPair = __remove_cvref_t<_Pair>, class _Tuple = tuple>
|
|
struct _BothImplicitlyConvertible : false_type {};
|
|
|
|
template <class _Pair, class _Up1, class _Up2, class _Tp1, class _Tp2>
|
|
struct _BothImplicitlyConvertible<_Pair, pair<_Up1, _Up2>, tuple<_Tp1, _Tp2> >
|
|
: _And< is_convertible<__copy_cvref_t<_Pair, _Up1>, _Tp1>, is_convertible<__copy_cvref_t<_Pair, _Up2>, _Tp2> > {};
|
|
|
|
template <class _Up1,
|
|
class _Up2,
|
|
template <class...> class _And = _And,
|
|
__enable_if_t< _And< _EnableCtorFromPair<const pair<_Up1, _Up2>&> >::value, int> = 0>
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 explicit(
|
|
_Not<_BothImplicitlyConvertible<const pair<_Up1, _Up2>&> >::value) tuple(const pair<_Up1, _Up2>& __p)
|
|
_NOEXCEPT_((_NothrowConstructibleFromPair<const pair<_Up1, _Up2>&>::value))
|
|
: __base_(__p) {}
|
|
|
|
template <class _Alloc,
|
|
class _Up1,
|
|
class _Up2,
|
|
template <class...> class _And = _And,
|
|
__enable_if_t< _And< _EnableCtorFromPair<const pair<_Up1, _Up2>&> >::value, int> = 0>
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 explicit(
|
|
_Not<_BothImplicitlyConvertible<const pair<_Up1, _Up2>&> >::value)
|
|
tuple(allocator_arg_t, const _Alloc& __a, const pair<_Up1, _Up2>& __p)
|
|
: __base_(allocator_arg_t(), __a, __p) {}
|
|
|
|
# if _LIBCPP_STD_VER >= 23
|
|
// tuple(pair<U1, U2>&) constructors (including allocator_arg_t variants)
|
|
|
|
template <class _U1, class _U2, enable_if_t< _EnableCtorFromPair<pair<_U1, _U2>&>::value>* = nullptr>
|
|
_LIBCPP_HIDE_FROM_ABI constexpr explicit(!_BothImplicitlyConvertible<pair<_U1, _U2>&>::value)
|
|
tuple(pair<_U1, _U2>& __p)
|
|
: __base_(__p) {}
|
|
|
|
template <class _Alloc,
|
|
class _U1,
|
|
class _U2,
|
|
enable_if_t< _EnableCtorFromPair<std::pair<_U1, _U2>&>::value>* = nullptr>
|
|
_LIBCPP_HIDE_FROM_ABI constexpr explicit(!_BothImplicitlyConvertible<pair<_U1, _U2>&>::value)
|
|
tuple(allocator_arg_t, const _Alloc& __alloc, pair<_U1, _U2>& __p)
|
|
: __base_(allocator_arg_t(), __alloc, __p) {}
|
|
# endif
|
|
|
|
// tuple(pair<U1, U2>&&) constructors (including allocator_arg_t variants)
|
|
|
|
template <class _Up1,
|
|
class _Up2,
|
|
template <class...> class _And = _And,
|
|
__enable_if_t< _And< _EnableCtorFromPair<pair<_Up1, _Up2>&&> >::value, int> = 0>
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 explicit(
|
|
_Not<_BothImplicitlyConvertible<pair<_Up1, _Up2>&&> >::value) tuple(pair<_Up1, _Up2>&& __p)
|
|
_NOEXCEPT_((_NothrowConstructibleFromPair<pair<_Up1, _Up2>&&>::value))
|
|
: __base_(std::move(__p)) {}
|
|
|
|
template <class _Alloc,
|
|
class _Up1,
|
|
class _Up2,
|
|
template <class...> class _And = _And,
|
|
__enable_if_t< _And< _EnableCtorFromPair<pair<_Up1, _Up2>&&> >::value, int> = 0>
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 explicit(
|
|
_Not<_BothImplicitlyConvertible<pair<_Up1, _Up2>&&> >::value)
|
|
tuple(allocator_arg_t, const _Alloc& __a, pair<_Up1, _Up2>&& __p)
|
|
: __base_(allocator_arg_t(), __a, std::move(__p)) {}
|
|
|
|
# if _LIBCPP_STD_VER >= 23
|
|
// tuple(const pair<U1, U2>&&) constructors (including allocator_arg_t variants)
|
|
|
|
template <class _U1, class _U2, enable_if_t< _EnableCtorFromPair<const pair<_U1, _U2>&&>::value>* = nullptr>
|
|
_LIBCPP_HIDE_FROM_ABI constexpr explicit(!_BothImplicitlyConvertible<const pair<_U1, _U2>&&>::value)
|
|
tuple(const pair<_U1, _U2>&& __p)
|
|
: __base_(std::move(__p)) {}
|
|
|
|
template <class _Alloc,
|
|
class _U1,
|
|
class _U2,
|
|
enable_if_t< _EnableCtorFromPair<const pair<_U1, _U2>&&>::value>* = nullptr>
|
|
_LIBCPP_HIDE_FROM_ABI constexpr explicit(!_BothImplicitlyConvertible<const pair<_U1, _U2>&&>::value)
|
|
tuple(allocator_arg_t, const _Alloc& __alloc, const pair<_U1, _U2>&& __p)
|
|
: __base_(allocator_arg_t(), __alloc, std::move(__p)) {}
|
|
# endif // _LIBCPP_STD_VER >= 23
|
|
|
|
_LIBCPP_DIAGNOSTIC_POP
|
|
|
|
// [tuple.assign]
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 tuple&
|
|
operator=(_If<_And<is_copy_assignable<_Tp>...>::value, tuple, __nat> const& __tuple)
|
|
_NOEXCEPT_((_And<is_nothrow_copy_assignable<_Tp>...>::value)) {
|
|
std::__memberwise_copy_assign(*this, __tuple, typename __make_tuple_indices<sizeof...(_Tp)>::type());
|
|
return *this;
|
|
}
|
|
|
|
# if _LIBCPP_STD_VER >= 23
|
|
_LIBCPP_HIDE_FROM_ABI constexpr const tuple& operator=(tuple const& __tuple) const
|
|
requires(_And<is_copy_assignable<const _Tp>...>::value)
|
|
{
|
|
std::__memberwise_copy_assign(*this, __tuple, typename __make_tuple_indices<sizeof...(_Tp)>::type());
|
|
return *this;
|
|
}
|
|
|
|
_LIBCPP_HIDE_FROM_ABI constexpr const tuple& operator=(tuple&& __tuple) const
|
|
requires(_And<is_assignable<const _Tp&, _Tp>...>::value)
|
|
{
|
|
std::__memberwise_forward_assign(
|
|
*this, std::move(__tuple), __tuple_types<_Tp...>(), typename __make_tuple_indices<sizeof...(_Tp)>::type());
|
|
return *this;
|
|
}
|
|
# endif // _LIBCPP_STD_VER >= 23
|
|
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 tuple&
|
|
operator=(_If<_And<is_move_assignable<_Tp>...>::value, tuple, __nat>&& __tuple)
|
|
_NOEXCEPT_((_And<is_nothrow_move_assignable<_Tp>...>::value)) {
|
|
std::__memberwise_forward_assign(
|
|
*this, std::move(__tuple), __tuple_types<_Tp...>(), typename __make_tuple_indices<sizeof...(_Tp)>::type());
|
|
return *this;
|
|
}
|
|
|
|
template <
|
|
class... _Up,
|
|
__enable_if_t< _And< _BoolConstant<sizeof...(_Tp) == sizeof...(_Up)>, is_assignable<_Tp&, _Up const&>... >::value,
|
|
int> = 0>
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 tuple& operator=(tuple<_Up...> const& __tuple)
|
|
_NOEXCEPT_((_And<is_nothrow_assignable<_Tp&, _Up const&>...>::value)) {
|
|
std::__memberwise_copy_assign(*this, __tuple, typename __make_tuple_indices<sizeof...(_Tp)>::type());
|
|
return *this;
|
|
}
|
|
|
|
template <class... _Up,
|
|
__enable_if_t< _And< _BoolConstant<sizeof...(_Tp) == sizeof...(_Up)>, is_assignable<_Tp&, _Up>... >::value,
|
|
int> = 0>
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 tuple& operator=(tuple<_Up...>&& __tuple)
|
|
_NOEXCEPT_((_And<is_nothrow_assignable<_Tp&, _Up>...>::value)) {
|
|
std::__memberwise_forward_assign(
|
|
*this, std::move(__tuple), __tuple_types<_Up...>(), typename __make_tuple_indices<sizeof...(_Tp)>::type());
|
|
return *this;
|
|
}
|
|
|
|
# if _LIBCPP_STD_VER >= 23
|
|
template <class... _UTypes,
|
|
enable_if_t< _And<_BoolConstant<sizeof...(_Tp) == sizeof...(_UTypes)>,
|
|
is_assignable<const _Tp&, const _UTypes&>...>::value>* = nullptr>
|
|
_LIBCPP_HIDE_FROM_ABI constexpr const tuple& operator=(const tuple<_UTypes...>& __u) const {
|
|
std::__memberwise_copy_assign(*this, __u, typename __make_tuple_indices<sizeof...(_Tp)>::type());
|
|
return *this;
|
|
}
|
|
|
|
template <class... _UTypes,
|
|
enable_if_t< _And<_BoolConstant<sizeof...(_Tp) == sizeof...(_UTypes)>,
|
|
is_assignable<const _Tp&, _UTypes>...>::value>* = nullptr>
|
|
_LIBCPP_HIDE_FROM_ABI constexpr const tuple& operator=(tuple<_UTypes...>&& __u) const {
|
|
std::__memberwise_forward_assign(
|
|
*this, __u, __tuple_types<_UTypes...>(), typename __make_tuple_indices<sizeof...(_Tp)>::type());
|
|
return *this;
|
|
}
|
|
# endif // _LIBCPP_STD_VER >= 23
|
|
|
|
template <template <class...> class _Pred,
|
|
bool _Const,
|
|
class _Pair,
|
|
class _DecayedPair = __remove_cvref_t<_Pair>,
|
|
class _Tuple = tuple>
|
|
struct _AssignPredicateFromPair : false_type {};
|
|
|
|
template <template <class...> class _Pred, bool _Const, class _Pair, class _Up1, class _Up2, class _Tp1, class _Tp2>
|
|
struct _AssignPredicateFromPair<_Pred, _Const, _Pair, pair<_Up1, _Up2>, tuple<_Tp1, _Tp2> >
|
|
: _And<_Pred<__maybe_const<_Const, _Tp1>&, __copy_cvref_t<_Pair, _Up1> >,
|
|
_Pred<__maybe_const<_Const, _Tp2>&, __copy_cvref_t<_Pair, _Up2> > > {};
|
|
|
|
template <bool _Const, class _Pair>
|
|
struct _EnableAssignFromPair : _AssignPredicateFromPair<is_assignable, _Const, _Pair> {};
|
|
|
|
template <bool _Const, class _Pair>
|
|
struct _NothrowAssignFromPair : _AssignPredicateFromPair<is_nothrow_assignable, _Const, _Pair> {};
|
|
|
|
# if _LIBCPP_STD_VER >= 23
|
|
template <class _U1, class _U2, enable_if_t< _EnableAssignFromPair<true, const pair<_U1, _U2>&>::value>* = nullptr>
|
|
_LIBCPP_HIDE_FROM_ABI constexpr const tuple& operator=(const pair<_U1, _U2>& __pair) const
|
|
noexcept(_NothrowAssignFromPair<true, const pair<_U1, _U2>&>::value) {
|
|
std::get<0>(*this) = __pair.first;
|
|
std::get<1>(*this) = __pair.second;
|
|
return *this;
|
|
}
|
|
|
|
template <class _U1, class _U2, enable_if_t< _EnableAssignFromPair<true, pair<_U1, _U2>&&>::value>* = nullptr>
|
|
_LIBCPP_HIDE_FROM_ABI constexpr const tuple& operator=(pair<_U1, _U2>&& __pair) const
|
|
noexcept(_NothrowAssignFromPair<true, pair<_U1, _U2>&&>::value) {
|
|
std::get<0>(*this) = std::move(__pair.first);
|
|
std::get<1>(*this) = std::move(__pair.second);
|
|
return *this;
|
|
}
|
|
# endif // _LIBCPP_STD_VER >= 23
|
|
|
|
template <class _Up1,
|
|
class _Up2,
|
|
__enable_if_t< _EnableAssignFromPair<false, pair<_Up1, _Up2> const&>::value, int> = 0>
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 tuple& operator=(pair<_Up1, _Up2> const& __pair)
|
|
_NOEXCEPT_((_NothrowAssignFromPair<false, pair<_Up1, _Up2> const&>::value)) {
|
|
std::get<0>(*this) = __pair.first;
|
|
std::get<1>(*this) = __pair.second;
|
|
return *this;
|
|
}
|
|
|
|
template <class _Up1, class _Up2, __enable_if_t< _EnableAssignFromPair<false, pair<_Up1, _Up2>&&>::value, int> = 0>
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 tuple& operator=(pair<_Up1, _Up2>&& __pair)
|
|
_NOEXCEPT_((_NothrowAssignFromPair<false, pair<_Up1, _Up2>&&>::value)) {
|
|
std::get<0>(*this) = std::forward<_Up1>(__pair.first);
|
|
std::get<1>(*this) = std::forward<_Up2>(__pair.second);
|
|
return *this;
|
|
}
|
|
|
|
// EXTENSION
|
|
template <
|
|
class _Up,
|
|
size_t _Np,
|
|
class = __enable_if_t< _And< _BoolConstant<_Np == sizeof...(_Tp)>, is_assignable<_Tp&, _Up const&>... >::value > >
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 tuple& operator=(array<_Up, _Np> const& __array)
|
|
_NOEXCEPT_((_And<is_nothrow_assignable<_Tp&, _Up const&>...>::value)) {
|
|
std::__memberwise_copy_assign(*this, __array, typename __make_tuple_indices<sizeof...(_Tp)>::type());
|
|
return *this;
|
|
}
|
|
|
|
// EXTENSION
|
|
template <class _Up,
|
|
size_t _Np,
|
|
class = void,
|
|
class = __enable_if_t< _And< _BoolConstant<_Np == sizeof...(_Tp)>, is_assignable<_Tp&, _Up>... >::value > >
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 tuple& operator=(array<_Up, _Np>&& __array)
|
|
_NOEXCEPT_((_And<is_nothrow_assignable<_Tp&, _Up>...>::value)) {
|
|
std::__memberwise_forward_assign(
|
|
*this,
|
|
std::move(__array),
|
|
__tuple_types<_If<true, _Up, _Tp>...>(),
|
|
typename __make_tuple_indices<sizeof...(_Tp)>::type());
|
|
return *this;
|
|
}
|
|
|
|
// [tuple.swap]
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 void swap(tuple& __t)
|
|
_NOEXCEPT_(__all<__is_nothrow_swappable<_Tp>::value...>::value) {
|
|
__base_.swap(__t.__base_);
|
|
}
|
|
|
|
# if _LIBCPP_STD_VER >= 23
|
|
_LIBCPP_HIDE_FROM_ABI constexpr void swap(const tuple& __t) const
|
|
noexcept(__all<is_nothrow_swappable_v<const _Tp&>...>::value) {
|
|
__base_.swap(__t.__base_);
|
|
}
|
|
# endif // _LIBCPP_STD_VER >= 23
|
|
};
|
|
|
|
template <>
|
|
class _LIBCPP_TEMPLATE_VIS tuple<> {
|
|
public:
|
|
constexpr tuple() _NOEXCEPT = default;
|
|
template <class _Alloc>
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 tuple(allocator_arg_t, const _Alloc&) _NOEXCEPT {}
|
|
template <class _Alloc>
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 tuple(allocator_arg_t, const _Alloc&, const tuple&) _NOEXCEPT {}
|
|
template <class _Up>
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 tuple(array<_Up, 0>) _NOEXCEPT {}
|
|
template <class _Alloc, class _Up>
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 tuple(allocator_arg_t, const _Alloc&, array<_Up, 0>) _NOEXCEPT {}
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 void swap(tuple&) _NOEXCEPT {}
|
|
# if _LIBCPP_STD_VER >= 23
|
|
_LIBCPP_HIDE_FROM_ABI constexpr void swap(const tuple&) const noexcept {}
|
|
# endif
|
|
};
|
|
|
|
# if _LIBCPP_STD_VER >= 23
|
|
template <class... _TTypes, class... _UTypes, template <class> class _TQual, template <class> class _UQual>
|
|
requires requires { typename tuple<common_reference_t<_TQual<_TTypes>, _UQual<_UTypes>>...>; }
|
|
struct basic_common_reference<tuple<_TTypes...>, tuple<_UTypes...>, _TQual, _UQual> {
|
|
using type = tuple<common_reference_t<_TQual<_TTypes>, _UQual<_UTypes>>...>;
|
|
};
|
|
|
|
template <class... _TTypes, class... _UTypes>
|
|
requires requires { typename tuple<common_type_t<_TTypes, _UTypes>...>; }
|
|
struct common_type<tuple<_TTypes...>, tuple<_UTypes...>> {
|
|
using type = tuple<common_type_t<_TTypes, _UTypes>...>;
|
|
};
|
|
# endif // _LIBCPP_STD_VER >= 23
|
|
|
|
# if _LIBCPP_STD_VER >= 17
|
|
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, __enable_if_t<__all<__is_swappable<_Tp>::value...>::value, int> = 0>
|
|
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 void swap(tuple<_Tp...>& __t, tuple<_Tp...>& __u)
|
|
_NOEXCEPT_(__all<__is_nothrow_swappable<_Tp>::value...>::value) {
|
|
__t.swap(__u);
|
|
}
|
|
|
|
# if _LIBCPP_STD_VER >= 23
|
|
template <class... _Tp>
|
|
_LIBCPP_HIDE_FROM_ABI constexpr enable_if_t<__all<is_swappable_v<const _Tp>...>::value, void>
|
|
swap(const tuple<_Tp...>& __lhs,
|
|
const tuple<_Tp...>& __rhs) noexcept(__all<is_nothrow_swappable_v<const _Tp>...>::value) {
|
|
__lhs.swap(__rhs);
|
|
}
|
|
# endif
|
|
|
|
// get
|
|
|
|
template <size_t _Ip, class... _Tp>
|
|
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 typename tuple_element<_Ip, tuple<_Tp...> >::type&
|
|
get(tuple<_Tp...>& __t) _NOEXCEPT {
|
|
typedef _LIBCPP_NODEBUG 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_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 const typename tuple_element<_Ip, tuple<_Tp...> >::type&
|
|
get(const tuple<_Tp...>& __t) _NOEXCEPT {
|
|
typedef _LIBCPP_NODEBUG 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_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 typename tuple_element<_Ip, tuple<_Tp...> >::type&&
|
|
get(tuple<_Tp...>&& __t) _NOEXCEPT {
|
|
typedef _LIBCPP_NODEBUG 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_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 const typename tuple_element<_Ip, tuple<_Tp...> >::type&&
|
|
get(const tuple<_Tp...>&& __t) _NOEXCEPT {
|
|
typedef _LIBCPP_NODEBUG 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 >= 14
|
|
|
|
namespace __find_detail {
|
|
|
|
static constexpr size_t __not_found = static_cast<size_t>(-1);
|
|
static constexpr size_t __ambiguous = __not_found - 1;
|
|
|
|
inline _LIBCPP_HIDE_FROM_ABI 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_HIDE_FROM_ABI constexpr size_t __find_idx(size_t __i, const bool (&__matches)[_Nx]) {
|
|
return __i == _Nx
|
|
? __not_found
|
|
: __find_detail::__find_idx_return(__i, __find_detail::__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_HIDE_FROM_ABI constexpr _T1& get(tuple<_Args...>& __tup) noexcept {
|
|
return std::get<__find_exactly_one_t<_T1, _Args...>::value>(__tup);
|
|
}
|
|
|
|
template <class _T1, class... _Args>
|
|
inline _LIBCPP_HIDE_FROM_ABI constexpr _T1 const& get(tuple<_Args...> const& __tup) noexcept {
|
|
return std::get<__find_exactly_one_t<_T1, _Args...>::value>(__tup);
|
|
}
|
|
|
|
template <class _T1, class... _Args>
|
|
inline _LIBCPP_HIDE_FROM_ABI constexpr _T1&& get(tuple<_Args...>&& __tup) noexcept {
|
|
return std::get<__find_exactly_one_t<_T1, _Args...>::value>(std::move(__tup));
|
|
}
|
|
|
|
template <class _T1, class... _Args>
|
|
inline _LIBCPP_HIDE_FROM_ABI constexpr _T1 const&& get(tuple<_Args...> const&& __tup) noexcept {
|
|
return std::get<__find_exactly_one_t<_T1, _Args...>::value>(std::move(__tup));
|
|
}
|
|
|
|
# endif
|
|
|
|
// tie
|
|
|
|
template <class... _Tp>
|
|
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 tuple<_Tp&...> tie(_Tp&... __t) _NOEXCEPT {
|
|
return tuple<_Tp&...>(__t...);
|
|
}
|
|
|
|
template <class _Up>
|
|
struct __ignore_t {
|
|
template <class _Tp>
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 const __ignore_t& operator=(_Tp&&) const {
|
|
return *this;
|
|
}
|
|
};
|
|
|
|
# if _LIBCPP_STD_VER >= 17
|
|
inline constexpr __ignore_t<unsigned char> ignore = __ignore_t<unsigned char>();
|
|
# else
|
|
namespace {
|
|
constexpr __ignore_t<unsigned char> ignore = __ignore_t<unsigned char>();
|
|
} // namespace
|
|
# endif
|
|
|
|
template <class... _Tp>
|
|
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 tuple<typename __unwrap_ref_decay<_Tp>::type...>
|
|
make_tuple(_Tp&&... __t) {
|
|
return tuple<typename __unwrap_ref_decay<_Tp>::type...>(std::forward<_Tp>(__t)...);
|
|
}
|
|
|
|
template <class... _Tp>
|
|
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 tuple<_Tp&&...> forward_as_tuple(_Tp&&... __t) _NOEXCEPT {
|
|
return tuple<_Tp&&...>(std::forward<_Tp>(__t)...);
|
|
}
|
|
|
|
template <size_t _Ip>
|
|
struct __tuple_equal {
|
|
template <class _Tp, class _Up>
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 bool operator()(const _Tp& __x, const _Up& __y) {
|
|
return __tuple_equal<_Ip - 1>()(__x, __y) && std::get<_Ip - 1>(__x) == std::get<_Ip - 1>(__y);
|
|
}
|
|
};
|
|
|
|
template <>
|
|
struct __tuple_equal<0> {
|
|
template <class _Tp, class _Up>
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 bool operator()(const _Tp&, const _Up&) {
|
|
return true;
|
|
}
|
|
};
|
|
|
|
template <class... _Tp, class... _Up>
|
|
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 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);
|
|
}
|
|
|
|
# if _LIBCPP_STD_VER >= 20
|
|
|
|
// operator<=>
|
|
|
|
template <class... _Tp, class... _Up, size_t... _Is>
|
|
_LIBCPP_HIDE_FROM_ABI constexpr auto
|
|
__tuple_compare_three_way(const tuple<_Tp...>& __x, const tuple<_Up...>& __y, index_sequence<_Is...>) {
|
|
common_comparison_category_t<__synth_three_way_result<_Tp, _Up>...> __result = strong_ordering::equal;
|
|
static_cast<void>(
|
|
((__result = std::__synth_three_way(std::get<_Is>(__x), std::get<_Is>(__y)), __result != 0) || ...));
|
|
return __result;
|
|
}
|
|
|
|
template <class... _Tp, class... _Up>
|
|
requires(sizeof...(_Tp) == sizeof...(_Up))
|
|
_LIBCPP_HIDE_FROM_ABI constexpr common_comparison_category_t<__synth_three_way_result<_Tp, _Up>...>
|
|
operator<=>(const tuple<_Tp...>& __x, const tuple<_Up...>& __y) {
|
|
return std::__tuple_compare_three_way(__x, __y, index_sequence_for<_Tp...>{});
|
|
}
|
|
|
|
# else // _LIBCPP_STD_VER >= 20
|
|
|
|
template <class... _Tp, class... _Up>
|
|
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 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_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 bool operator()(const _Tp& __x, const _Up& __y) {
|
|
const size_t __idx = tuple_size<_Tp>::value - _Ip;
|
|
if (std::get<__idx>(__x) < std::get<__idx>(__y))
|
|
return true;
|
|
if (std::get<__idx>(__y) < std::get<__idx>(__x))
|
|
return false;
|
|
return __tuple_less<_Ip - 1>()(__x, __y);
|
|
}
|
|
};
|
|
|
|
template <>
|
|
struct __tuple_less<0> {
|
|
template <class _Tp, class _Up>
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 bool operator()(const _Tp&, const _Up&) {
|
|
return false;
|
|
}
|
|
};
|
|
|
|
template <class... _Tp, class... _Up>
|
|
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 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_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 bool
|
|
operator>(const tuple<_Tp...>& __x, const tuple<_Up...>& __y) {
|
|
return __y < __x;
|
|
}
|
|
|
|
template <class... _Tp, class... _Up>
|
|
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 bool
|
|
operator>=(const tuple<_Tp...>& __x, const tuple<_Up...>& __y) {
|
|
return !(__x < __y);
|
|
}
|
|
|
|
template <class... _Tp, class... _Up>
|
|
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 bool
|
|
operator<=(const tuple<_Tp...>& __x, const tuple<_Up...>& __y) {
|
|
return !(__y < __x);
|
|
}
|
|
|
|
# endif // _LIBCPP_STD_VER >= 20
|
|
|
|
// 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 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> {
|
|
using type _LIBCPP_NODEBUG =
|
|
typename __tuple_cat_type< tuple<_Types...>,
|
|
typename __make_tuple_types<__remove_cvref_t<_Tuple0> >::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<__remove_cvref_t<_Tuple0> >::type >::type,
|
|
__tuple_like_ext<__libcpp_remove_reference_t<_Tuple1> >::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_ext<__libcpp_remove_reference_t<_Tuple0> >::value,
|
|
_Tuple0,
|
|
_Tuples...> {};
|
|
|
|
template <>
|
|
struct __tuple_cat_return<> {
|
|
typedef _LIBCPP_NODEBUG tuple<> type;
|
|
};
|
|
|
|
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 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 __libcpp_remove_reference_t<_Tuple0> _T0;
|
|
typedef tuple<_Types..., __apply_cv_t<_Tuple0, typename tuple_element<_I0, _T0>::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...,
|
|
__apply_cv_t<_Tuple0, typename tuple_element<_I0, __libcpp_remove_reference_t<_Tuple0>>::type>&&...>,
|
|
typename __make_tuple_indices<tuple_size<__libcpp_remove_reference_t<_Tuple1> >::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<__libcpp_remove_reference_t<_Tuple0> >::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_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14
|
|
typename __tuple_cat_return_ref<tuple<_Types...>&&, _Tuple0&&>::type
|
|
operator()(tuple<_Types...> __t, _Tuple0&& __t0) {
|
|
(void)__t; // avoid unused parameter warning on GCC when _I0 is empty
|
|
return std::forward_as_tuple(
|
|
std::forward<_Types>(std::get<_I0>(__t))..., std::get<_J0>(std::forward<_Tuple0>(__t0))...);
|
|
}
|
|
|
|
template <class _Tuple0, class _Tuple1, class... _Tuples>
|
|
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14
|
|
typename __tuple_cat_return_ref<tuple<_Types...>&&, _Tuple0&&, _Tuple1&&, _Tuples&&...>::type
|
|
operator()(tuple<_Types...> __t, _Tuple0&& __t0, _Tuple1&& __t1, _Tuples&&... __tpls) {
|
|
(void)__t; // avoid unused parameter warning on GCC when _I0 is empty
|
|
typedef _LIBCPP_NODEBUG __libcpp_remove_reference_t<_Tuple0> _T0;
|
|
typedef _LIBCPP_NODEBUG __libcpp_remove_reference_t<_Tuple1> _T1;
|
|
return __tuple_cat<tuple<_Types..., __apply_cv_t<_Tuple0, typename tuple_element<_J0, _T0>::type>&&...>,
|
|
typename __make_tuple_indices<sizeof...(_Types) + tuple_size<_T0>::value>::type,
|
|
typename __make_tuple_indices<tuple_size<_T1>::value>::type>()(
|
|
std::forward_as_tuple(
|
|
std::forward<_Types>(std::get<_I0>(__t))..., std::get<_J0>(std::forward<_Tuple0>(__t0))...),
|
|
std::forward<_Tuple1>(__t1),
|
|
std::forward<_Tuples>(__tpls)...);
|
|
}
|
|
};
|
|
|
|
template <class _Tuple0, class... _Tuples>
|
|
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 typename __tuple_cat_return<_Tuple0, _Tuples...>::type
|
|
tuple_cat(_Tuple0&& __t0, _Tuples&&... __tpls) {
|
|
typedef _LIBCPP_NODEBUG __libcpp_remove_reference_t<_Tuple0> _T0;
|
|
return __tuple_cat<tuple<>, __tuple_indices<>, typename __make_tuple_indices<tuple_size<_T0>::value>::type>()(
|
|
tuple<>(), std::forward<_Tuple0>(__t0), std::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_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 pair<_T1, _T2>::pair(
|
|
piecewise_construct_t,
|
|
tuple<_Args1...>& __first_args,
|
|
tuple<_Args2...>& __second_args,
|
|
__tuple_indices<_I1...>,
|
|
__tuple_indices<_I2...>)
|
|
: first(std::forward<_Args1>(std::get<_I1>(__first_args))...),
|
|
second(std::forward<_Args2>(std::get<_I2>(__second_args))...) {}
|
|
|
|
# if _LIBCPP_STD_VER >= 17
|
|
template <class _Tp>
|
|
inline constexpr size_t tuple_size_v = tuple_size<_Tp>::value;
|
|
|
|
# define _LIBCPP_NOEXCEPT_RETURN(...) \
|
|
noexcept(noexcept(__VA_ARGS__)) { return __VA_ARGS__; }
|
|
|
|
// The _LIBCPP_NOEXCEPT_RETURN macro breaks formatting.
|
|
// clang-format off
|
|
template <class _Fn, class _Tuple, size_t... _Id>
|
|
inline _LIBCPP_HIDE_FROM_ABI constexpr decltype(auto)
|
|
__apply_tuple_impl(_Fn&& __f, _Tuple&& __t, __tuple_indices<_Id...>)
|
|
_LIBCPP_NOEXCEPT_RETURN(std::__invoke(std::forward<_Fn>(__f), std::get<_Id>(std::forward<_Tuple>(__t))...))
|
|
|
|
template <class _Fn, class _Tuple>
|
|
inline _LIBCPP_HIDE_FROM_ABI constexpr decltype(auto) apply(_Fn&& __f, _Tuple&& __t)
|
|
_LIBCPP_NOEXCEPT_RETURN(std::__apply_tuple_impl(
|
|
std::forward<_Fn>(__f),
|
|
std::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_HIDE_FROM_ABI constexpr _Tp __make_from_tuple_impl(_Tuple&& __t, __tuple_indices<_Idx...>)
|
|
_LIBCPP_NOEXCEPT_RETURN(_Tp(std::get<_Idx>(std::forward<_Tuple>(__t))...))
|
|
|
|
template <class _Tp, class _Tuple>
|
|
inline _LIBCPP_HIDE_FROM_ABI constexpr _Tp make_from_tuple(_Tuple&& __t)
|
|
_LIBCPP_NOEXCEPT_RETURN(std::__make_from_tuple_impl<_Tp>(
|
|
std::forward<_Tuple>(__t), typename __make_tuple_indices<tuple_size_v<remove_reference_t<_Tuple>>>::type{}))
|
|
|
|
# undef _LIBCPP_NOEXCEPT_RETURN
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# endif // _LIBCPP_STD_VER >= 17
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#endif // !defined(_LIBCPP_CXX03_LANG)
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|
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_LIBCPP_END_NAMESPACE_STD
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|
|
|
_LIBCPP_POP_MACROS
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|
|
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// clang-format on
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#if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20
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# include <exception>
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|
# include <iosfwd>
|
|
# include <new>
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# include <type_traits>
|
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# include <typeinfo>
|
|
# include <utility>
|
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#endif
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|
|
#endif // _LIBCPP_TUPLE
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