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Diffstat (limited to 'third_party/libcxx/include/c++/v1/utility')
| -rw-r--r-- | third_party/libcxx/include/c++/v1/utility | 330 |
1 files changed, 330 insertions, 0 deletions
diff --git a/third_party/libcxx/include/c++/v1/utility b/third_party/libcxx/include/c++/v1/utility new file mode 100644 index 0000000..1b19243 --- /dev/null +++ b/third_party/libcxx/include/c++/v1/utility @@ -0,0 +1,330 @@ +// -*- C++ -*- +//===----------------------------------------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#ifndef _LIBCPP_UTILITY +#define _LIBCPP_UTILITY + +/* + utility synopsis + +#include <initializer_list> + +namespace std +{ + +template <class T> + void + swap(T& a, T& b); + +namespace rel_ops +{ + template<class T> bool operator!=(const T&, const T&); + template<class T> bool operator> (const T&, const T&); + template<class T> bool operator<=(const T&, const T&); + template<class T> bool operator>=(const T&, const T&); +} + +template<class T> +void +swap(T& a, T& b) noexcept(is_nothrow_move_constructible<T>::value && + is_nothrow_move_assignable<T>::value); + +template <class T, size_t N> +void +swap(T (&a)[N], T (&b)[N]) noexcept(noexcept(swap(*a, *b))); + +template <class T> T&& forward(typename remove_reference<T>::type& t) noexcept; // constexpr in C++14 +template <class T> T&& forward(typename remove_reference<T>::type&& t) noexcept; // constexpr in C++14 + +template <typename T> +[[nodiscard]] constexpr +auto forward_like(auto&& x) noexcept -> see below; // since C++23 + +template <class T> typename remove_reference<T>::type&& move(T&&) noexcept; // constexpr in C++14 + +template <class T> + typename conditional + < + !is_nothrow_move_constructible<T>::value && is_copy_constructible<T>::value, + const T&, + T&& + >::type + move_if_noexcept(T& x) noexcept; // constexpr in C++14 + +template <class T> constexpr add_const_t<T>& as_const(T& t) noexcept; // C++17 +template <class T> void as_const(const T&&) = delete; // C++17 + +template <class T> typename add_rvalue_reference<T>::type declval() noexcept; + +template<class T, class U> constexpr bool cmp_equal(T t, U u) noexcept; // C++20 +template<class T, class U> constexpr bool cmp_not_equal(T t, U u) noexcept; // C++20 +template<class T, class U> constexpr bool cmp_less(T t, U u) noexcept; // C++20 +template<class T, class U> constexpr bool cmp_greater(T t, U u) noexcept; // C++20 +template<class T, class U> constexpr bool cmp_less_equal(T t, U u) noexcept; // C++20 +template<class T, class U> constexpr bool cmp_greater_equal(T t, U u) noexcept; // C++20 +template<class R, class T> constexpr bool in_range(T t) noexcept; // C++20 + +template <class T1, class T2> +struct pair +{ + typedef T1 first_type; + typedef T2 second_type; + + T1 first; + T2 second; + + pair(const pair&) = default; + pair(pair&&) = default; + explicit(see-below) constexpr pair(); + explicit(see-below) pair(const T1& x, const T2& y); // constexpr in C++14 + template <class U = T1, class V = T2> explicit(see-below) pair(U&&, V&&); // constexpr in C++14 + template <class U, class V> constexpr explicit(see-below) pair(pair<U, V>&); // since C++23 + template <class U, class V> explicit(see-below) pair(const pair<U, V>& p); // constexpr in C++14 + template <class U, class V> explicit(see-below) pair(pair<U, V>&& p); // constexpr in C++14 + template <class U, class V> + constexpr explicit(see-below) pair(const pair<U, V>&&); // since C++23 + template <pair-like P> constexpr explicit(see-below) pair(P&&); // since C++23 + template <class... Args1, class... Args2> + pair(piecewise_construct_t, tuple<Args1...> first_args, // constexpr in C++20 + tuple<Args2...> second_args); + + constexpr const pair& operator=(const pair& p) const; // since C++23 + template <class U, class V> pair& operator=(const pair<U, V>& p); // constexpr in C++20 + template <class U, class V> + constexpr const pair& operator=(const pair<U, V>& p) const; // since C++23 + pair& operator=(pair&& p) noexcept(is_nothrow_move_assignable<T1>::value && + is_nothrow_move_assignable<T2>::value); // constexpr in C++20 + constexpr const pair& operator=(pair&& p) const; // since C++23 + template <class U, class V> pair& operator=(pair<U, V>&& p); // constexpr in C++20 + template <class U, class V> + constexpr const pair& operator=(pair<U, V>&& p) const; // since C++23 + template <pair-like P> constexpr pair& operator=(P&&); // since C++23 + template <pair-like P> constexpr const pair& operator=(P&&) const; // since C++23 + + void swap(pair& p) noexcept(is_nothrow_swappable_v<T1> && + is_nothrow_swappable_v<T2>); // constexpr in C++20 + constexpr void swap(const pair& p) const noexcept(see below); // since C++23 +}; + +template<class T1, class T2, class U1, class U2, template<class> class TQual, template<class> class UQual> +struct basic_common_reference<pair<T1, T2>, pair<U1, U2>, TQual, UQual>; // since C++23 + +template<class T1, class T2, class U1, class U2> +struct common_type<pair<T1, T2>, pair<U1, U2>>; // since C++23 + +template<class T1, class T2> pair(T1, T2) -> pair<T1, T2>; + +template <class T1, class T2, class U1, class U2> +bool operator==(const pair<T1,T2>&, const pair<U1,U2>&); // constexpr in C++14 +template <class T1, class T2, class U1, class U2> +bool operator!=(const pair<T1,T2>&, const pair<U1,U2>&); // constexpr in C++14, removed in C++20 +template <class T1, class T2, class U1, class U2> +bool operator< (const pair<T1,T2>&, const pair<U1,U2>&); // constexpr in C++14, removed in C++20 +template <class T1, class T2, class U1, class U2> +bool operator> (const pair<T1,T2>&, const pair<U1,U2>&); // constexpr in C++14, removed in C++20 +template <class T1, class T2, class U1, class U2> +bool operator>=(const pair<T1,T2>&, const pair<U1,U2>&); // constexpr in C++14, removed in C++20 +template <class T1, class T2, class U1, class U2> +bool operator<=(const pair<T1,T2>&, const pair<U1,U2>&); // constexpr in C++14, removed in C++20 +template <class T1, class T2, class U1, class U2> + constexpr common_comparison_type_t<synth-three-way-result<T1,U1>, + synth-three-way-result<T2,U2>> + operator<=>(const pair<T1,T2>&, const pair<U1,U2>&); // C++20 + +template <class T1, class T2> pair<V1, V2> make_pair(T1&&, T2&&); // constexpr in C++14 +template <class T1, class T2> +void +swap(pair<T1, T2>& x, pair<T1, T2>& y) noexcept(noexcept(x.swap(y))); // constexpr in C++20 + +template<class T1, class T2> // since C++23 +constexpr void swap(const pair<T1, T2>& x, const pair<T1, T2>& y) noexcept(noexcept(x.swap(y))); + +struct piecewise_construct_t { explicit piecewise_construct_t() = default; }; +inline constexpr piecewise_construct_t piecewise_construct = piecewise_construct_t(); + +template <class T> struct tuple_size; +template <size_t I, class T> struct tuple_element; + +template <class T1, class T2> struct tuple_size<pair<T1, T2> >; +template <class T1, class T2> struct tuple_element<0, pair<T1, T2> >; +template <class T1, class T2> struct tuple_element<1, pair<T1, T2> >; + +template<size_t I, class T1, class T2> + typename tuple_element<I, pair<T1, T2> >::type& + get(pair<T1, T2>&) noexcept; // constexpr in C++14 + +template<size_t I, class T1, class T2> + const typename tuple_element<I, pair<T1, T2> >::type& + get(const pair<T1, T2>&) noexcept; // constexpr in C++14 + +template<size_t I, class T1, class T2> + typename tuple_element<I, pair<T1, T2> >::type&& + get(pair<T1, T2>&&) noexcept; // constexpr in C++14 + +template<size_t I, class T1, class T2> + const typename tuple_element<I, pair<T1, T2> >::type&& + get(const pair<T1, T2>&&) noexcept; // constexpr in C++14 + +template<class T1, class T2> + constexpr T1& get(pair<T1, T2>&) noexcept; // C++14 + +template<class T1, class T2> + constexpr const T1& get(const pair<T1, T2>&) noexcept; // C++14 + +template<class T1, class T2> + constexpr T1&& get(pair<T1, T2>&&) noexcept; // C++14 + +template<class T1, class T2> + constexpr const T1&& get(const pair<T1, T2>&&) noexcept; // C++14 + +template<class T1, class T2> + constexpr T1& get(pair<T2, T1>&) noexcept; // C++14 + +template<class T1, class T2> + constexpr const T1& get(const pair<T2, T1>&) noexcept; // C++14 + +template<class T1, class T2> + constexpr T1&& get(pair<T2, T1>&&) noexcept; // C++14 + +template<class T1, class T2> + constexpr const T1&& get(const pair<T2, T1>&&) noexcept; // C++14 + +// C++14 + +template<class T, T... I> +struct integer_sequence +{ + typedef T value_type; + + static constexpr size_t size() noexcept; +}; + +template<size_t... I> + using index_sequence = integer_sequence<size_t, I...>; + +template<class T, T N> + using make_integer_sequence = integer_sequence<T, 0, 1, ..., N-1>; +template<size_t N> + using make_index_sequence = make_integer_sequence<size_t, N>; + +template<class... T> + using index_sequence_for = make_index_sequence<sizeof...(T)>; + +template<class T, T... Values> // C++26 + struct tuple_size<integer_sequence<T, Values...>>; + +template<size_t I, class T, T... Values> // C++26 + struct tuple_element<I, integer_sequence<T, Values...>>; + +template<size_t I, class T, T... Values> // C++26 + struct tuple_element<I, const integer_sequence<T, Values...>>; + +template<size_t I, class T, T... Values> // C++26 + constexpr T get(integer_sequence<T, Values...>) noexcept; + +template<class T, class U=T> + constexpr T exchange(T& obj, U&& new_value) // constexpr in C++17, noexcept in C++23 + noexcept(is_nothrow_move_constructible<T>::value && is_nothrow_assignable<T&, U>::value); + +// 20.2.7, in-place construction // C++17 +struct in_place_t { + explicit in_place_t() = default; +}; +inline constexpr in_place_t in_place{}; +template <class T> + struct in_place_type_t { + explicit in_place_type_t() = default; + }; +template <class T> + inline constexpr in_place_type_t<T> in_place_type{}; +template <size_t I> + struct in_place_index_t { + explicit in_place_index_t() = default; + }; +template <size_t I> + inline constexpr in_place_index_t<I> in_place_index{}; + +// [utility.underlying], to_underlying +template <class T> + constexpr underlying_type_t<T> to_underlying( T value ) noexcept; // C++23 + +} // std + +*/ + +#if __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS) +# include <__cxx03/utility> +#else +# include <__config> + +# include <__utility/declval.h> +# include <__utility/forward.h> +# include <__utility/move.h> +# include <__utility/pair.h> +# include <__utility/piecewise_construct.h> +# include <__utility/rel_ops.h> +# include <__utility/swap.h> + +# if _LIBCPP_STD_VER >= 14 +# include <__utility/exchange.h> +# include <__utility/integer_sequence.h> +# endif + +# if _LIBCPP_STD_VER >= 17 +# include <__utility/as_const.h> +# include <__utility/in_place.h> +# endif + +# if _LIBCPP_STD_VER >= 20 +# include <__utility/cmp.h> +# endif + +# if _LIBCPP_STD_VER >= 23 +# include <__utility/forward_like.h> +# include <__utility/to_underlying.h> +# include <__utility/unreachable.h> +# endif + +# if _LIBCPP_STD_VER >= 26 +# include <__variant/monostate.h> +# endif + +# include <version> + +// standard-mandated includes + +// [utility.syn] +# include <compare> +# include <initializer_list> + +// [tuple.creation] + +# include <__tuple/ignore.h> + +// [tuple.helper] +# include <__tuple/tuple_element.h> +# include <__tuple/tuple_size.h> + +# if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) +# pragma GCC system_header +# endif + +# if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20 +# include <limits> +# endif + +# if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20 +# include <cstddef> +# include <cstdlib> +# include <iosfwd> +# include <type_traits> +# endif +#endif // __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS) + +#endif // _LIBCPP_UTILITY |