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clang-p2996/libcxx/include/utility
Mark de Wever de6827b530 [libc++] Improves clang-format settings. 
Add a new test based .clang-format file which inherits from the generic
one. This moves some test specific formatting rules to the test
directory.

The main benefit is that headers are sorted, which makes it more likely
to catch these errors before creating a review instead of spotting the
error in the CI clang-tidy step.

Reviewed By: ldionne, philnik, #libc

Differential Revision: https://reviews.llvm.org/D144755
2023-02-27 19:24:06 +01:00

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// -*- 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 <class... Args1, class... Args2>
pair(piecewise_construct_t, tuple<Args1...> first_args,
tuple<Args2...> second_args); // constexpr in C++20
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
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>
bool operator==(const pair<T1,T2>&, const pair<T1,T2>&); // constexpr in C++14
template <class T1, class T2>
bool operator!=(const pair<T1,T2>&, const pair<T1,T2>&); // constexpr in C++14, removed in C++20
template <class T1, class T2>
bool operator< (const pair<T1,T2>&, const pair<T1,T2>&); // constexpr in C++14, removed in C++20
template <class T1, class T2>
bool operator> (const pair<T1,T2>&, const pair<T1,T2>&); // constexpr in C++14, removed in C++20
template <class T1, class T2>
bool operator>=(const pair<T1,T2>&, const pair<T1,T2>&); // constexpr in C++14, removed in C++20
template <class T1, class T2>
bool operator<=(const pair<T1,T2>&, const pair<T1,T2>&); // constexpr in C++14, removed in C++20
template <class T1, class T2>
constexpr common_comparison_type_t<synth-three-way-result<T1>,
synth-three-way-result<T2>>
operator<=>(const pair<T1,T2>&, const pair<T1,T2>&); // 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, 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++2b
} // std
*/
#include <__assert> // all public C++ headers provide the assertion handler
#include <__config>
#include <__utility/as_const.h>
#include <__utility/auto_cast.h>
#include <__utility/cmp.h>
#include <__utility/declval.h>
#include <__utility/exception_guard.h>
#include <__utility/exchange.h>
#include <__utility/forward.h>
#include <__utility/forward_like.h>
#include <__utility/in_place.h>
#include <__utility/integer_sequence.h>
#include <__utility/move.h>
#include <__utility/pair.h>
#include <__utility/piecewise_construct.h>
#include <__utility/priority_tag.h>
#include <__utility/rel_ops.h>
#include <__utility/swap.h>
#include <__utility/to_underlying.h>
#include <__utility/unreachable.h>
#include <version>
// standard-mandated includes
// [utility.syn]
#include <compare>
#include <initializer_list>
// [tuple.helper]
#include <__tuple_dir/tuple_element.h>
#include <__tuple_dir/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 <cstdlib>
# include <iosfwd>
# include <type_traits>
#endif
#endif // _LIBCPP_UTILITY
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