[libcxx][modularisation] splits `<utility>` into self-contained headers
* moves `std::hash` and `std::unary_function` into `__functional`
* Everything else goes into `__utility/${NAME}.h`
Differential Revision: https://reviews.llvm.org/D104002
NOKEYCHECK=True
GitOrigin-RevId: 69d5a6662115499198ebfa07a081e98a6ce4b915
diff --git a/include/utility b/include/utility
index 49e7b3e..83ad035 100644
--- a/include/utility
+++ b/include/utility
@@ -210,1675 +210,21 @@
#include <__config>
#include <__debug>
#include <__tuple>
+#include <__utility/as_const.h>
+#include <__utility/cmp.h>
#include <__utility/declval.h>
+#include <__utility/exchange.h>
#include <__utility/forward.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/rel_ops.h>
#include <__utility/swap.h>
#include <__utility/to_underlying.h>
#include <compare>
-#include <cstddef>
-#include <cstdint>
-#include <cstring>
#include <initializer_list>
-#include <limits>
-#include <type_traits>
#include <version>
-#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
-#pragma GCC system_header
-#endif
-
-_LIBCPP_PUSH_MACROS
-#include <__undef_macros>
-
-_LIBCPP_BEGIN_NAMESPACE_STD
-
-namespace rel_ops
-{
-
-template<class _Tp>
-inline _LIBCPP_INLINE_VISIBILITY
-bool
-operator!=(const _Tp& __x, const _Tp& __y)
-{
- return !(__x == __y);
-}
-
-template<class _Tp>
-inline _LIBCPP_INLINE_VISIBILITY
-bool
-operator> (const _Tp& __x, const _Tp& __y)
-{
- return __y < __x;
-}
-
-template<class _Tp>
-inline _LIBCPP_INLINE_VISIBILITY
-bool
-operator<=(const _Tp& __x, const _Tp& __y)
-{
- return !(__y < __x);
-}
-
-template<class _Tp>
-inline _LIBCPP_INLINE_VISIBILITY
-bool
-operator>=(const _Tp& __x, const _Tp& __y)
-{
- return !(__x < __y);
-}
-
-} // rel_ops
-
-#if _LIBCPP_STD_VER > 14
-template <class _Tp>
-_LIBCPP_NODISCARD_EXT constexpr add_const_t<_Tp>& as_const(_Tp& __t) noexcept { return __t; }
-
-template <class _Tp>
-void as_const(const _Tp&&) = delete;
-#endif
-
-#if _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_CONCEPTS)
-template<class _Tp, class... _Up>
-struct _IsSameAsAny : _Or<_IsSame<_Tp, _Up>...> {};
-
-template<class _Tp>
-concept __is_safe_integral_cmp = is_integral_v<_Tp> &&
- !_IsSameAsAny<_Tp, bool, char,
-#ifndef _LIBCPP_HAS_NO_CHAR8_T
- char8_t,
-#endif
-#ifndef _LIBCPP_HAS_NO_UNICODE_CHARS
- char16_t, char32_t,
-#endif
- wchar_t>::value;
-
-template<__is_safe_integral_cmp _Tp, __is_safe_integral_cmp _Up>
-_LIBCPP_INLINE_VISIBILITY constexpr
-bool cmp_equal(_Tp __t, _Up __u) noexcept
-{
- if constexpr (is_signed_v<_Tp> == is_signed_v<_Up>)
- return __t == __u;
- else if constexpr (is_signed_v<_Tp>)
- return __t < 0 ? false : make_unsigned_t<_Tp>(__t) == __u;
- else
- return __u < 0 ? false : __t == make_unsigned_t<_Up>(__u);
-}
-
-template<__is_safe_integral_cmp _Tp, __is_safe_integral_cmp _Up>
-_LIBCPP_INLINE_VISIBILITY constexpr
-bool cmp_not_equal(_Tp __t, _Up __u) noexcept
-{
- return !_VSTD::cmp_equal(__t, __u);
-}
-
-template<__is_safe_integral_cmp _Tp, __is_safe_integral_cmp _Up>
-_LIBCPP_INLINE_VISIBILITY constexpr
-bool cmp_less(_Tp __t, _Up __u) noexcept
-{
- if constexpr (is_signed_v<_Tp> == is_signed_v<_Up>)
- return __t < __u;
- else if constexpr (is_signed_v<_Tp>)
- return __t < 0 ? true : make_unsigned_t<_Tp>(__t) < __u;
- else
- return __u < 0 ? false : __t < make_unsigned_t<_Up>(__u);
-}
-
-template<__is_safe_integral_cmp _Tp, __is_safe_integral_cmp _Up>
-_LIBCPP_INLINE_VISIBILITY constexpr
-bool cmp_greater(_Tp __t, _Up __u) noexcept
-{
- return _VSTD::cmp_less(__u, __t);
-}
-
-template<__is_safe_integral_cmp _Tp, __is_safe_integral_cmp _Up>
-_LIBCPP_INLINE_VISIBILITY constexpr
-bool cmp_less_equal(_Tp __t, _Up __u) noexcept
-{
- return !_VSTD::cmp_greater(__t, __u);
-}
-
-template<__is_safe_integral_cmp _Tp, __is_safe_integral_cmp _Up>
-_LIBCPP_INLINE_VISIBILITY constexpr
-bool cmp_greater_equal(_Tp __t, _Up __u) noexcept
-{
- return !_VSTD::cmp_less(__t, __u);
-}
-
-template<__is_safe_integral_cmp _Tp, __is_safe_integral_cmp _Up>
-_LIBCPP_INLINE_VISIBILITY constexpr
-bool in_range(_Up __u) noexcept
-{
- return _VSTD::cmp_less_equal(__u, numeric_limits<_Tp>::max()) &&
- _VSTD::cmp_greater_equal(__u, numeric_limits<_Tp>::min());
-}
-#endif
-
-struct _LIBCPP_TEMPLATE_VIS piecewise_construct_t { explicit piecewise_construct_t() = default; };
-#if defined(_LIBCPP_CXX03_LANG) || defined(_LIBCPP_BUILDING_LIBRARY)
-extern _LIBCPP_EXPORTED_FROM_ABI const piecewise_construct_t piecewise_construct;// = piecewise_construct_t();
-#else
-/* _LIBCPP_INLINE_VAR */ constexpr piecewise_construct_t piecewise_construct = piecewise_construct_t();
-#endif
-
-#if defined(_LIBCPP_DEPRECATED_ABI_DISABLE_PAIR_TRIVIAL_COPY_CTOR)
-template <class, class>
-struct __non_trivially_copyable_base {
- _LIBCPP_CONSTEXPR _LIBCPP_INLINE_VISIBILITY
- __non_trivially_copyable_base() _NOEXCEPT {}
- _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
- __non_trivially_copyable_base(__non_trivially_copyable_base const&) _NOEXCEPT {}
-};
-#endif
-
-template <class _T1, class _T2>
-struct _LIBCPP_TEMPLATE_VIS pair
-#if defined(_LIBCPP_DEPRECATED_ABI_DISABLE_PAIR_TRIVIAL_COPY_CTOR)
-: private __non_trivially_copyable_base<_T1, _T2>
-#endif
-{
- typedef _T1 first_type;
- typedef _T2 second_type;
-
- _T1 first;
- _T2 second;
-
-#if !defined(_LIBCPP_CXX03_LANG)
- pair(pair const&) = default;
- pair(pair&&) = default;
-#else
- // Use the implicitly declared copy constructor in C++03
-#endif
-
-#ifdef _LIBCPP_CXX03_LANG
- _LIBCPP_INLINE_VISIBILITY
- pair() : first(), second() {}
-
- _LIBCPP_INLINE_VISIBILITY
- pair(_T1 const& __t1, _T2 const& __t2) : first(__t1), second(__t2) {}
-
- template <class _U1, class _U2>
- _LIBCPP_INLINE_VISIBILITY
- pair(const pair<_U1, _U2>& __p) : first(__p.first), second(__p.second) {}
-
- _LIBCPP_INLINE_VISIBILITY
- pair& operator=(pair const& __p) {
- first = __p.first;
- second = __p.second;
- return *this;
- }
-#else
- template <bool _Val>
- using _EnableB _LIBCPP_NODEBUG_TYPE = typename enable_if<_Val, bool>::type;
-
- struct _CheckArgs {
- template <int&...>
- static constexpr bool __enable_explicit_default() {
- return is_default_constructible<_T1>::value
- && is_default_constructible<_T2>::value
- && !__enable_implicit_default<>();
- }
-
- template <int&...>
- static constexpr bool __enable_implicit_default() {
- return __is_implicitly_default_constructible<_T1>::value
- && __is_implicitly_default_constructible<_T2>::value;
- }
-
- template <class _U1, class _U2>
- static constexpr bool __enable_explicit() {
- return is_constructible<first_type, _U1>::value
- && is_constructible<second_type, _U2>::value
- && (!is_convertible<_U1, first_type>::value
- || !is_convertible<_U2, second_type>::value);
- }
-
- template <class _U1, class _U2>
- static constexpr bool __enable_implicit() {
- return is_constructible<first_type, _U1>::value
- && is_constructible<second_type, _U2>::value
- && is_convertible<_U1, first_type>::value
- && is_convertible<_U2, second_type>::value;
- }
- };
-
- template <bool _MaybeEnable>
- using _CheckArgsDep _LIBCPP_NODEBUG_TYPE = typename conditional<
- _MaybeEnable, _CheckArgs, __check_tuple_constructor_fail>::type;
-
- struct _CheckTupleLikeConstructor {
- template <class _Tuple>
- static constexpr bool __enable_implicit() {
- return __tuple_convertible<_Tuple, pair>::value;
- }
-
- template <class _Tuple>
- static constexpr bool __enable_explicit() {
- return __tuple_constructible<_Tuple, pair>::value
- && !__tuple_convertible<_Tuple, pair>::value;
- }
-
- template <class _Tuple>
- static constexpr bool __enable_assign() {
- return __tuple_assignable<_Tuple, pair>::value;
- }
- };
-
- template <class _Tuple>
- using _CheckTLC _LIBCPP_NODEBUG_TYPE = typename conditional<
- __tuple_like_with_size<_Tuple, 2>::value
- && !is_same<typename decay<_Tuple>::type, pair>::value,
- _CheckTupleLikeConstructor,
- __check_tuple_constructor_fail
- >::type;
-
- template<bool _Dummy = true, _EnableB<
- _CheckArgsDep<_Dummy>::__enable_explicit_default()
- > = false>
- explicit _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
- pair() _NOEXCEPT_(is_nothrow_default_constructible<first_type>::value &&
- is_nothrow_default_constructible<second_type>::value)
- : first(), second() {}
-
- template<bool _Dummy = true, _EnableB<
- _CheckArgsDep<_Dummy>::__enable_implicit_default()
- > = false>
- _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
- pair() _NOEXCEPT_(is_nothrow_default_constructible<first_type>::value &&
- is_nothrow_default_constructible<second_type>::value)
- : first(), second() {}
-
- template <bool _Dummy = true, _EnableB<
- _CheckArgsDep<_Dummy>::template __enable_explicit<_T1 const&, _T2 const&>()
- > = false>
- _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
- explicit pair(_T1 const& __t1, _T2 const& __t2)
- _NOEXCEPT_(is_nothrow_copy_constructible<first_type>::value &&
- is_nothrow_copy_constructible<second_type>::value)
- : first(__t1), second(__t2) {}
-
- template<bool _Dummy = true, _EnableB<
- _CheckArgsDep<_Dummy>::template __enable_implicit<_T1 const&, _T2 const&>()
- > = false>
- _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
- pair(_T1 const& __t1, _T2 const& __t2)
- _NOEXCEPT_(is_nothrow_copy_constructible<first_type>::value &&
- is_nothrow_copy_constructible<second_type>::value)
- : first(__t1), second(__t2) {}
-
- template<class _U1, class _U2, _EnableB<
- _CheckArgs::template __enable_explicit<_U1, _U2>()
- > = false>
- _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
- explicit pair(_U1&& __u1, _U2&& __u2)
- _NOEXCEPT_((is_nothrow_constructible<first_type, _U1>::value &&
- is_nothrow_constructible<second_type, _U2>::value))
- : first(_VSTD::forward<_U1>(__u1)), second(_VSTD::forward<_U2>(__u2)) {}
-
- template<class _U1, class _U2, _EnableB<
- _CheckArgs::template __enable_implicit<_U1, _U2>()
- > = false>
- _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
- pair(_U1&& __u1, _U2&& __u2)
- _NOEXCEPT_((is_nothrow_constructible<first_type, _U1>::value &&
- is_nothrow_constructible<second_type, _U2>::value))
- : first(_VSTD::forward<_U1>(__u1)), second(_VSTD::forward<_U2>(__u2)) {}
-
- template<class _U1, class _U2, _EnableB<
- _CheckArgs::template __enable_explicit<_U1 const&, _U2 const&>()
- > = false>
- _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
- explicit pair(pair<_U1, _U2> const& __p)
- _NOEXCEPT_((is_nothrow_constructible<first_type, _U1 const&>::value &&
- is_nothrow_constructible<second_type, _U2 const&>::value))
- : first(__p.first), second(__p.second) {}
-
- template<class _U1, class _U2, _EnableB<
- _CheckArgs::template __enable_implicit<_U1 const&, _U2 const&>()
- > = false>
- _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
- pair(pair<_U1, _U2> const& __p)
- _NOEXCEPT_((is_nothrow_constructible<first_type, _U1 const&>::value &&
- is_nothrow_constructible<second_type, _U2 const&>::value))
- : first(__p.first), second(__p.second) {}
-
- template<class _U1, class _U2, _EnableB<
- _CheckArgs::template __enable_explicit<_U1, _U2>()
- > = false>
- _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
- explicit pair(pair<_U1, _U2>&&__p)
- _NOEXCEPT_((is_nothrow_constructible<first_type, _U1&&>::value &&
- is_nothrow_constructible<second_type, _U2&&>::value))
- : first(_VSTD::forward<_U1>(__p.first)), second(_VSTD::forward<_U2>(__p.second)) {}
-
- template<class _U1, class _U2, _EnableB<
- _CheckArgs::template __enable_implicit<_U1, _U2>()
- > = false>
- _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
- pair(pair<_U1, _U2>&& __p)
- _NOEXCEPT_((is_nothrow_constructible<first_type, _U1&&>::value &&
- is_nothrow_constructible<second_type, _U2&&>::value))
- : first(_VSTD::forward<_U1>(__p.first)), second(_VSTD::forward<_U2>(__p.second)) {}
-
- template<class _Tuple, _EnableB<
- _CheckTLC<_Tuple>::template __enable_explicit<_Tuple>()
- > = false>
- _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
- explicit pair(_Tuple&& __p)
- : first(_VSTD::get<0>(_VSTD::forward<_Tuple>(__p))),
- second(_VSTD::get<1>(_VSTD::forward<_Tuple>(__p))) {}
-
- template<class _Tuple, _EnableB<
- _CheckTLC<_Tuple>::template __enable_implicit<_Tuple>()
- > = false>
- _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
- pair(_Tuple&& __p)
- : first(_VSTD::get<0>(_VSTD::forward<_Tuple>(__p))),
- second(_VSTD::get<1>(_VSTD::forward<_Tuple>(__p))) {}
-
- template <class... _Args1, class... _Args2>
- _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
- pair(piecewise_construct_t __pc,
- tuple<_Args1...> __first_args, tuple<_Args2...> __second_args)
- _NOEXCEPT_((is_nothrow_constructible<first_type, _Args1...>::value &&
- is_nothrow_constructible<second_type, _Args2...>::value))
- : pair(__pc, __first_args, __second_args,
- typename __make_tuple_indices<sizeof...(_Args1)>::type(),
- typename __make_tuple_indices<sizeof...(_Args2) >::type()) {}
-
- _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
- pair& operator=(typename conditional<
- is_copy_assignable<first_type>::value &&
- is_copy_assignable<second_type>::value,
- pair, __nat>::type const& __p)
- _NOEXCEPT_(is_nothrow_copy_assignable<first_type>::value &&
- is_nothrow_copy_assignable<second_type>::value)
- {
- first = __p.first;
- second = __p.second;
- return *this;
- }
-
- _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
- pair& operator=(typename conditional<
- is_move_assignable<first_type>::value &&
- is_move_assignable<second_type>::value,
- pair, __nat>::type&& __p)
- _NOEXCEPT_(is_nothrow_move_assignable<first_type>::value &&
- is_nothrow_move_assignable<second_type>::value)
- {
- first = _VSTD::forward<first_type>(__p.first);
- second = _VSTD::forward<second_type>(__p.second);
- return *this;
- }
-
- template <class _Tuple, _EnableB<
- _CheckTLC<_Tuple>::template __enable_assign<_Tuple>()
- > = false>
- _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
- pair& operator=(_Tuple&& __p) {
- first = _VSTD::get<0>(_VSTD::forward<_Tuple>(__p));
- second = _VSTD::get<1>(_VSTD::forward<_Tuple>(__p));
- return *this;
- }
-#endif
-
- _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
- void
- swap(pair& __p) _NOEXCEPT_(__is_nothrow_swappable<first_type>::value &&
- __is_nothrow_swappable<second_type>::value)
- {
- using _VSTD::swap;
- swap(first, __p.first);
- swap(second, __p.second);
- }
-private:
-
-#ifndef _LIBCPP_CXX03_LANG
- template <class... _Args1, class... _Args2, size_t... _I1, size_t... _I2>
- _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
- pair(piecewise_construct_t,
- tuple<_Args1...>& __first_args, tuple<_Args2...>& __second_args,
- __tuple_indices<_I1...>, __tuple_indices<_I2...>);
-#endif
-};
-
-#ifndef _LIBCPP_HAS_NO_DEDUCTION_GUIDES
-template<class _T1, class _T2>
-pair(_T1, _T2) -> pair<_T1, _T2>;
-#endif // _LIBCPP_HAS_NO_DEDUCTION_GUIDES
-
-template <class _T1, class _T2>
-inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
-bool
-operator==(const pair<_T1,_T2>& __x, const pair<_T1,_T2>& __y)
-{
- return __x.first == __y.first && __x.second == __y.second;
-}
-
-template <class _T1, class _T2>
-inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
-bool
-operator!=(const pair<_T1,_T2>& __x, const pair<_T1,_T2>& __y)
-{
- return !(__x == __y);
-}
-
-template <class _T1, class _T2>
-inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
-bool
-operator< (const pair<_T1,_T2>& __x, const pair<_T1,_T2>& __y)
-{
- return __x.first < __y.first || (!(__y.first < __x.first) && __x.second < __y.second);
-}
-
-template <class _T1, class _T2>
-inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
-bool
-operator> (const pair<_T1,_T2>& __x, const pair<_T1,_T2>& __y)
-{
- return __y < __x;
-}
-
-template <class _T1, class _T2>
-inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
-bool
-operator>=(const pair<_T1,_T2>& __x, const pair<_T1,_T2>& __y)
-{
- return !(__x < __y);
-}
-
-template <class _T1, class _T2>
-inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
-bool
-operator<=(const pair<_T1,_T2>& __x, const pair<_T1,_T2>& __y)
-{
- return !(__y < __x);
-}
-
-template <class _T1, class _T2>
-inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
-typename enable_if
-<
- __is_swappable<_T1>::value &&
- __is_swappable<_T2>::value,
- void
->::type
-swap(pair<_T1, _T2>& __x, pair<_T1, _T2>& __y)
- _NOEXCEPT_((__is_nothrow_swappable<_T1>::value &&
- __is_nothrow_swappable<_T2>::value))
-{
- __x.swap(__y);
-}
-
-template <class _Tp>
-struct __unwrap_reference { typedef _LIBCPP_NODEBUG_TYPE _Tp type; };
-
-template <class _Tp>
-struct __unwrap_reference<reference_wrapper<_Tp> > { typedef _LIBCPP_NODEBUG_TYPE _Tp& type; };
-
-#if _LIBCPP_STD_VER > 17
-template <class _Tp>
-struct unwrap_reference : __unwrap_reference<_Tp> { };
-
-template <class _Tp>
-struct unwrap_ref_decay : unwrap_reference<typename decay<_Tp>::type> { };
-#endif // > C++17
-
-template <class _Tp>
-struct __unwrap_ref_decay
-#if _LIBCPP_STD_VER > 17
- : unwrap_ref_decay<_Tp>
-#else
- : __unwrap_reference<typename decay<_Tp>::type>
-#endif
-{ };
-
-#ifndef _LIBCPP_CXX03_LANG
-
-template <class _T1, class _T2>
-inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
-pair<typename __unwrap_ref_decay<_T1>::type, typename __unwrap_ref_decay<_T2>::type>
-make_pair(_T1&& __t1, _T2&& __t2)
-{
- return pair<typename __unwrap_ref_decay<_T1>::type, typename __unwrap_ref_decay<_T2>::type>
- (_VSTD::forward<_T1>(__t1), _VSTD::forward<_T2>(__t2));
-}
-
-#else // _LIBCPP_CXX03_LANG
-
-template <class _T1, class _T2>
-inline _LIBCPP_INLINE_VISIBILITY
-pair<_T1,_T2>
-make_pair(_T1 __x, _T2 __y)
-{
- return pair<_T1, _T2>(__x, __y);
-}
-
-#endif // _LIBCPP_CXX03_LANG
-
-template <class _T1, class _T2>
- struct _LIBCPP_TEMPLATE_VIS tuple_size<pair<_T1, _T2> >
- : public integral_constant<size_t, 2> {};
-
-template <size_t _Ip, class _T1, class _T2>
-struct _LIBCPP_TEMPLATE_VIS tuple_element<_Ip, pair<_T1, _T2> >
-{
- static_assert(_Ip < 2, "Index out of bounds in std::tuple_element<std::pair<T1, T2>>");
-};
-
-template <class _T1, class _T2>
-struct _LIBCPP_TEMPLATE_VIS tuple_element<0, pair<_T1, _T2> >
-{
- typedef _LIBCPP_NODEBUG_TYPE _T1 type;
-};
-
-template <class _T1, class _T2>
-struct _LIBCPP_TEMPLATE_VIS tuple_element<1, pair<_T1, _T2> >
-{
- typedef _LIBCPP_NODEBUG_TYPE _T2 type;
-};
-
-template <size_t _Ip> struct __get_pair;
-
-template <>
-struct __get_pair<0>
-{
- template <class _T1, class _T2>
- static
- _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
- _T1&
- get(pair<_T1, _T2>& __p) _NOEXCEPT {return __p.first;}
-
- template <class _T1, class _T2>
- static
- _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
- const _T1&
- get(const pair<_T1, _T2>& __p) _NOEXCEPT {return __p.first;}
-
-#ifndef _LIBCPP_CXX03_LANG
- template <class _T1, class _T2>
- static
- _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
- _T1&&
- get(pair<_T1, _T2>&& __p) _NOEXCEPT {return _VSTD::forward<_T1>(__p.first);}
-
- template <class _T1, class _T2>
- static
- _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
- const _T1&&
- get(const pair<_T1, _T2>&& __p) _NOEXCEPT {return _VSTD::forward<const _T1>(__p.first);}
-#endif // _LIBCPP_CXX03_LANG
-};
-
-template <>
-struct __get_pair<1>
-{
- template <class _T1, class _T2>
- static
- _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
- _T2&
- get(pair<_T1, _T2>& __p) _NOEXCEPT {return __p.second;}
-
- template <class _T1, class _T2>
- static
- _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
- const _T2&
- get(const pair<_T1, _T2>& __p) _NOEXCEPT {return __p.second;}
-
-#ifndef _LIBCPP_CXX03_LANG
- template <class _T1, class _T2>
- static
- _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
- _T2&&
- get(pair<_T1, _T2>&& __p) _NOEXCEPT {return _VSTD::forward<_T2>(__p.second);}
-
- template <class _T1, class _T2>
- static
- _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
- const _T2&&
- get(const pair<_T1, _T2>&& __p) _NOEXCEPT {return _VSTD::forward<const _T2>(__p.second);}
-#endif // _LIBCPP_CXX03_LANG
-};
-
-template <size_t _Ip, class _T1, class _T2>
-inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
-typename tuple_element<_Ip, pair<_T1, _T2> >::type&
-get(pair<_T1, _T2>& __p) _NOEXCEPT
-{
- return __get_pair<_Ip>::get(__p);
-}
-
-template <size_t _Ip, class _T1, class _T2>
-inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
-const typename tuple_element<_Ip, pair<_T1, _T2> >::type&
-get(const pair<_T1, _T2>& __p) _NOEXCEPT
-{
- return __get_pair<_Ip>::get(__p);
-}
-
-#ifndef _LIBCPP_CXX03_LANG
-template <size_t _Ip, class _T1, class _T2>
-inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
-typename tuple_element<_Ip, pair<_T1, _T2> >::type&&
-get(pair<_T1, _T2>&& __p) _NOEXCEPT
-{
- return __get_pair<_Ip>::get(_VSTD::move(__p));
-}
-
-template <size_t _Ip, class _T1, class _T2>
-inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
-const typename tuple_element<_Ip, pair<_T1, _T2> >::type&&
-get(const pair<_T1, _T2>&& __p) _NOEXCEPT
-{
- return __get_pair<_Ip>::get(_VSTD::move(__p));
-}
-#endif // _LIBCPP_CXX03_LANG
-
-#if _LIBCPP_STD_VER > 11
-template <class _T1, class _T2>
-inline _LIBCPP_INLINE_VISIBILITY
-constexpr _T1 & get(pair<_T1, _T2>& __p) _NOEXCEPT
-{
- return __get_pair<0>::get(__p);
-}
-
-template <class _T1, class _T2>
-inline _LIBCPP_INLINE_VISIBILITY
-constexpr _T1 const & get(pair<_T1, _T2> const& __p) _NOEXCEPT
-{
- return __get_pair<0>::get(__p);
-}
-
-template <class _T1, class _T2>
-inline _LIBCPP_INLINE_VISIBILITY
-constexpr _T1 && get(pair<_T1, _T2>&& __p) _NOEXCEPT
-{
- return __get_pair<0>::get(_VSTD::move(__p));
-}
-
-template <class _T1, class _T2>
-inline _LIBCPP_INLINE_VISIBILITY
-constexpr _T1 const && get(pair<_T1, _T2> const&& __p) _NOEXCEPT
-{
- return __get_pair<0>::get(_VSTD::move(__p));
-}
-
-template <class _T1, class _T2>
-inline _LIBCPP_INLINE_VISIBILITY
-constexpr _T1 & get(pair<_T2, _T1>& __p) _NOEXCEPT
-{
- return __get_pair<1>::get(__p);
-}
-
-template <class _T1, class _T2>
-inline _LIBCPP_INLINE_VISIBILITY
-constexpr _T1 const & get(pair<_T2, _T1> const& __p) _NOEXCEPT
-{
- return __get_pair<1>::get(__p);
-}
-
-template <class _T1, class _T2>
-inline _LIBCPP_INLINE_VISIBILITY
-constexpr _T1 && get(pair<_T2, _T1>&& __p) _NOEXCEPT
-{
- return __get_pair<1>::get(_VSTD::move(__p));
-}
-
-template <class _T1, class _T2>
-inline _LIBCPP_INLINE_VISIBILITY
-constexpr _T1 const && get(pair<_T2, _T1> const&& __p) _NOEXCEPT
-{
- return __get_pair<1>::get(_VSTD::move(__p));
-}
-
-#endif
-
-#if _LIBCPP_STD_VER > 11
-
-template<class _Tp, _Tp... _Ip>
-struct _LIBCPP_TEMPLATE_VIS integer_sequence
-{
- typedef _Tp value_type;
- static_assert( is_integral<_Tp>::value,
- "std::integer_sequence can only be instantiated with an integral type" );
- static
- _LIBCPP_INLINE_VISIBILITY
- constexpr
- size_t
- size() noexcept { return sizeof...(_Ip); }
-};
-
-template<size_t... _Ip>
- using index_sequence = integer_sequence<size_t, _Ip...>;
-
-#if __has_builtin(__make_integer_seq) && !defined(_LIBCPP_TESTING_FALLBACK_MAKE_INTEGER_SEQUENCE)
-
-template <class _Tp, _Tp _Ep>
-using __make_integer_sequence _LIBCPP_NODEBUG_TYPE = __make_integer_seq<integer_sequence, _Tp, _Ep>;
-
-#else
-
-template<typename _Tp, _Tp _Np> using __make_integer_sequence_unchecked _LIBCPP_NODEBUG_TYPE =
- typename __detail::__make<_Np>::type::template __convert<integer_sequence, _Tp>;
-
-template <class _Tp, _Tp _Ep>
-struct __make_integer_sequence_checked
-{
- static_assert(is_integral<_Tp>::value,
- "std::make_integer_sequence can only be instantiated with an integral type" );
- static_assert(0 <= _Ep, "std::make_integer_sequence must have a non-negative sequence length");
- // Workaround GCC bug by preventing bad installations when 0 <= _Ep
- // https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68929
- typedef _LIBCPP_NODEBUG_TYPE __make_integer_sequence_unchecked<_Tp, 0 <= _Ep ? _Ep : 0> type;
-};
-
-template <class _Tp, _Tp _Ep>
-using __make_integer_sequence _LIBCPP_NODEBUG_TYPE = typename __make_integer_sequence_checked<_Tp, _Ep>::type;
-
-#endif
-
-template<class _Tp, _Tp _Np>
- using make_integer_sequence = __make_integer_sequence<_Tp, _Np>;
-
-template<size_t _Np>
- using make_index_sequence = make_integer_sequence<size_t, _Np>;
-
-template<class... _Tp>
- using index_sequence_for = make_index_sequence<sizeof...(_Tp)>;
-
-#endif // _LIBCPP_STD_VER > 11
-
-#if _LIBCPP_STD_VER > 11
-template<class _T1, class _T2 = _T1>
-inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
-_T1 exchange(_T1& __obj, _T2 && __new_value)
-{
- _T1 __old_value = _VSTD::move(__obj);
- __obj = _VSTD::forward<_T2>(__new_value);
- return __old_value;
-}
-#endif // _LIBCPP_STD_VER > 11
-
-#if _LIBCPP_STD_VER > 14
-
-struct _LIBCPP_TYPE_VIS in_place_t {
- explicit in_place_t() = default;
-};
-_LIBCPP_INLINE_VAR constexpr in_place_t in_place{};
-
-template <class _Tp>
-struct _LIBCPP_TEMPLATE_VIS in_place_type_t {
- explicit in_place_type_t() = default;
-};
-template <class _Tp>
-_LIBCPP_INLINE_VAR constexpr in_place_type_t<_Tp> in_place_type{};
-
-template <size_t _Idx>
-struct _LIBCPP_TEMPLATE_VIS in_place_index_t {
- explicit in_place_index_t() = default;
-};
-template <size_t _Idx>
-_LIBCPP_INLINE_VAR constexpr in_place_index_t<_Idx> in_place_index{};
-
-template <class _Tp> struct __is_inplace_type_imp : false_type {};
-template <class _Tp> struct __is_inplace_type_imp<in_place_type_t<_Tp>> : true_type {};
-
-template <class _Tp>
-using __is_inplace_type = __is_inplace_type_imp<__uncvref_t<_Tp>>;
-
-template <class _Tp> struct __is_inplace_index_imp : false_type {};
-template <size_t _Idx> struct __is_inplace_index_imp<in_place_index_t<_Idx>> : true_type {};
-
-template <class _Tp>
-using __is_inplace_index = __is_inplace_index_imp<__uncvref_t<_Tp>>;
-
-#endif // _LIBCPP_STD_VER > 14
-
-template <class _Arg, class _Result>
-struct _LIBCPP_TEMPLATE_VIS unary_function
-{
- typedef _Arg argument_type;
- typedef _Result result_type;
-};
-
-template <class _Size>
-inline _LIBCPP_INLINE_VISIBILITY
-_Size
-__loadword(const void* __p)
-{
- _Size __r;
- _VSTD::memcpy(&__r, __p, sizeof(__r));
- return __r;
-}
-
-// We use murmur2 when size_t is 32 bits, and cityhash64 when size_t
-// is 64 bits. This is because cityhash64 uses 64bit x 64bit
-// multiplication, which can be very slow on 32-bit systems.
-template <class _Size, size_t = sizeof(_Size)*__CHAR_BIT__>
-struct __murmur2_or_cityhash;
-
-template <class _Size>
-struct __murmur2_or_cityhash<_Size, 32>
-{
- inline _Size operator()(const void* __key, _Size __len)
- _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK;
-};
-
-// murmur2
-template <class _Size>
-_Size
-__murmur2_or_cityhash<_Size, 32>::operator()(const void* __key, _Size __len)
-{
- const _Size __m = 0x5bd1e995;
- const _Size __r = 24;
- _Size __h = __len;
- const unsigned char* __data = static_cast<const unsigned char*>(__key);
- for (; __len >= 4; __data += 4, __len -= 4)
- {
- _Size __k = __loadword<_Size>(__data);
- __k *= __m;
- __k ^= __k >> __r;
- __k *= __m;
- __h *= __m;
- __h ^= __k;
- }
- switch (__len)
- {
- case 3:
- __h ^= __data[2] << 16;
- _LIBCPP_FALLTHROUGH();
- case 2:
- __h ^= __data[1] << 8;
- _LIBCPP_FALLTHROUGH();
- case 1:
- __h ^= __data[0];
- __h *= __m;
- }
- __h ^= __h >> 13;
- __h *= __m;
- __h ^= __h >> 15;
- return __h;
-}
-
-template <class _Size>
-struct __murmur2_or_cityhash<_Size, 64>
-{
- inline _Size operator()(const void* __key, _Size __len) _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK;
-
- private:
- // Some primes between 2^63 and 2^64.
- static const _Size __k0 = 0xc3a5c85c97cb3127ULL;
- static const _Size __k1 = 0xb492b66fbe98f273ULL;
- static const _Size __k2 = 0x9ae16a3b2f90404fULL;
- static const _Size __k3 = 0xc949d7c7509e6557ULL;
-
- static _Size __rotate(_Size __val, int __shift) {
- return __shift == 0 ? __val : ((__val >> __shift) | (__val << (64 - __shift)));
- }
-
- static _Size __rotate_by_at_least_1(_Size __val, int __shift) {
- return (__val >> __shift) | (__val << (64 - __shift));
- }
-
- static _Size __shift_mix(_Size __val) {
- return __val ^ (__val >> 47);
- }
-
- static _Size __hash_len_16(_Size __u, _Size __v)
- _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK
- {
- const _Size __mul = 0x9ddfea08eb382d69ULL;
- _Size __a = (__u ^ __v) * __mul;
- __a ^= (__a >> 47);
- _Size __b = (__v ^ __a) * __mul;
- __b ^= (__b >> 47);
- __b *= __mul;
- return __b;
- }
-
- static _Size __hash_len_0_to_16(const char* __s, _Size __len)
- _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK
- {
- if (__len > 8) {
- const _Size __a = __loadword<_Size>(__s);
- const _Size __b = __loadword<_Size>(__s + __len - 8);
- return __hash_len_16(__a, __rotate_by_at_least_1(__b + __len, __len)) ^ __b;
- }
- if (__len >= 4) {
- const uint32_t __a = __loadword<uint32_t>(__s);
- const uint32_t __b = __loadword<uint32_t>(__s + __len - 4);
- return __hash_len_16(__len + (__a << 3), __b);
- }
- if (__len > 0) {
- const unsigned char __a = __s[0];
- const unsigned char __b = __s[__len >> 1];
- const unsigned char __c = __s[__len - 1];
- const uint32_t __y = static_cast<uint32_t>(__a) +
- (static_cast<uint32_t>(__b) << 8);
- const uint32_t __z = __len + (static_cast<uint32_t>(__c) << 2);
- return __shift_mix(__y * __k2 ^ __z * __k3) * __k2;
- }
- return __k2;
- }
-
- static _Size __hash_len_17_to_32(const char *__s, _Size __len)
- _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK
- {
- const _Size __a = __loadword<_Size>(__s) * __k1;
- const _Size __b = __loadword<_Size>(__s + 8);
- const _Size __c = __loadword<_Size>(__s + __len - 8) * __k2;
- const _Size __d = __loadword<_Size>(__s + __len - 16) * __k0;
- return __hash_len_16(__rotate(__a - __b, 43) + __rotate(__c, 30) + __d,
- __a + __rotate(__b ^ __k3, 20) - __c + __len);
- }
-
- // Return a 16-byte hash for 48 bytes. Quick and dirty.
- // Callers do best to use "random-looking" values for a and b.
- static pair<_Size, _Size> __weak_hash_len_32_with_seeds(
- _Size __w, _Size __x, _Size __y, _Size __z, _Size __a, _Size __b)
- _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK
- {
- __a += __w;
- __b = __rotate(__b + __a + __z, 21);
- const _Size __c = __a;
- __a += __x;
- __a += __y;
- __b += __rotate(__a, 44);
- return pair<_Size, _Size>(__a + __z, __b + __c);
- }
-
- // Return a 16-byte hash for s[0] ... s[31], a, and b. Quick and dirty.
- static pair<_Size, _Size> __weak_hash_len_32_with_seeds(
- const char* __s, _Size __a, _Size __b)
- _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK
- {
- return __weak_hash_len_32_with_seeds(__loadword<_Size>(__s),
- __loadword<_Size>(__s + 8),
- __loadword<_Size>(__s + 16),
- __loadword<_Size>(__s + 24),
- __a,
- __b);
- }
-
- // Return an 8-byte hash for 33 to 64 bytes.
- static _Size __hash_len_33_to_64(const char *__s, size_t __len)
- _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK
- {
- _Size __z = __loadword<_Size>(__s + 24);
- _Size __a = __loadword<_Size>(__s) +
- (__len + __loadword<_Size>(__s + __len - 16)) * __k0;
- _Size __b = __rotate(__a + __z, 52);
- _Size __c = __rotate(__a, 37);
- __a += __loadword<_Size>(__s + 8);
- __c += __rotate(__a, 7);
- __a += __loadword<_Size>(__s + 16);
- _Size __vf = __a + __z;
- _Size __vs = __b + __rotate(__a, 31) + __c;
- __a = __loadword<_Size>(__s + 16) + __loadword<_Size>(__s + __len - 32);
- __z += __loadword<_Size>(__s + __len - 8);
- __b = __rotate(__a + __z, 52);
- __c = __rotate(__a, 37);
- __a += __loadword<_Size>(__s + __len - 24);
- __c += __rotate(__a, 7);
- __a += __loadword<_Size>(__s + __len - 16);
- _Size __wf = __a + __z;
- _Size __ws = __b + __rotate(__a, 31) + __c;
- _Size __r = __shift_mix((__vf + __ws) * __k2 + (__wf + __vs) * __k0);
- return __shift_mix(__r * __k0 + __vs) * __k2;
- }
-};
-
-// cityhash64
-template <class _Size>
-_Size
-__murmur2_or_cityhash<_Size, 64>::operator()(const void* __key, _Size __len)
-{
- const char* __s = static_cast<const char*>(__key);
- if (__len <= 32) {
- if (__len <= 16) {
- return __hash_len_0_to_16(__s, __len);
- } else {
- return __hash_len_17_to_32(__s, __len);
- }
- } else if (__len <= 64) {
- return __hash_len_33_to_64(__s, __len);
- }
-
- // For strings over 64 bytes we hash the end first, and then as we
- // loop we keep 56 bytes of state: v, w, x, y, and z.
- _Size __x = __loadword<_Size>(__s + __len - 40);
- _Size __y = __loadword<_Size>(__s + __len - 16) +
- __loadword<_Size>(__s + __len - 56);
- _Size __z = __hash_len_16(__loadword<_Size>(__s + __len - 48) + __len,
- __loadword<_Size>(__s + __len - 24));
- pair<_Size, _Size> __v = __weak_hash_len_32_with_seeds(__s + __len - 64, __len, __z);
- pair<_Size, _Size> __w = __weak_hash_len_32_with_seeds(__s + __len - 32, __y + __k1, __x);
- __x = __x * __k1 + __loadword<_Size>(__s);
-
- // Decrease len to the nearest multiple of 64, and operate on 64-byte chunks.
- __len = (__len - 1) & ~static_cast<_Size>(63);
- do {
- __x = __rotate(__x + __y + __v.first + __loadword<_Size>(__s + 8), 37) * __k1;
- __y = __rotate(__y + __v.second + __loadword<_Size>(__s + 48), 42) * __k1;
- __x ^= __w.second;
- __y += __v.first + __loadword<_Size>(__s + 40);
- __z = __rotate(__z + __w.first, 33) * __k1;
- __v = __weak_hash_len_32_with_seeds(__s, __v.second * __k1, __x + __w.first);
- __w = __weak_hash_len_32_with_seeds(__s + 32, __z + __w.second,
- __y + __loadword<_Size>(__s + 16));
- _VSTD::swap(__z, __x);
- __s += 64;
- __len -= 64;
- } while (__len != 0);
- return __hash_len_16(
- __hash_len_16(__v.first, __w.first) + __shift_mix(__y) * __k1 + __z,
- __hash_len_16(__v.second, __w.second) + __x);
-}
-
-template <class _Tp, size_t = sizeof(_Tp) / sizeof(size_t)>
-struct __scalar_hash;
-
-_LIBCPP_SUPPRESS_DEPRECATED_PUSH
-template <class _Tp>
-struct __scalar_hash<_Tp, 0>
-#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
- : public unary_function<_Tp, size_t>
-#endif
-{
-_LIBCPP_SUPPRESS_DEPRECATED_POP
-#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
- _LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
- _LIBCPP_DEPRECATED_IN_CXX17 typedef _Tp argument_type;
-#endif
- _LIBCPP_INLINE_VISIBILITY
- size_t operator()(_Tp __v) const _NOEXCEPT
- {
- union
- {
- _Tp __t;
- size_t __a;
- } __u;
- __u.__a = 0;
- __u.__t = __v;
- return __u.__a;
- }
-};
-
-_LIBCPP_SUPPRESS_DEPRECATED_PUSH
-template <class _Tp>
-struct __scalar_hash<_Tp, 1>
-#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
- : public unary_function<_Tp, size_t>
-#endif
-{
-_LIBCPP_SUPPRESS_DEPRECATED_POP
-#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
- _LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
- _LIBCPP_DEPRECATED_IN_CXX17 typedef _Tp argument_type;
-#endif
- _LIBCPP_INLINE_VISIBILITY
- size_t operator()(_Tp __v) const _NOEXCEPT
- {
- union
- {
- _Tp __t;
- size_t __a;
- } __u;
- __u.__t = __v;
- return __u.__a;
- }
-};
-
-_LIBCPP_SUPPRESS_DEPRECATED_PUSH
-template <class _Tp>
-struct __scalar_hash<_Tp, 2>
-#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
- : public unary_function<_Tp, size_t>
-#endif
-{
-_LIBCPP_SUPPRESS_DEPRECATED_POP
-#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
- _LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
- _LIBCPP_DEPRECATED_IN_CXX17 typedef _Tp argument_type;
-#endif
- _LIBCPP_INLINE_VISIBILITY
- size_t operator()(_Tp __v) const _NOEXCEPT
- {
- union
- {
- _Tp __t;
- struct
- {
- size_t __a;
- size_t __b;
- } __s;
- } __u;
- __u.__t = __v;
- return __murmur2_or_cityhash<size_t>()(&__u, sizeof(__u));
- }
-};
-
-_LIBCPP_SUPPRESS_DEPRECATED_PUSH
-template <class _Tp>
-struct __scalar_hash<_Tp, 3>
-#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
- : public unary_function<_Tp, size_t>
-#endif
-{
-_LIBCPP_SUPPRESS_DEPRECATED_POP
-#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
- _LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
- _LIBCPP_DEPRECATED_IN_CXX17 typedef _Tp argument_type;
-#endif
- _LIBCPP_INLINE_VISIBILITY
- size_t operator()(_Tp __v) const _NOEXCEPT
- {
- union
- {
- _Tp __t;
- struct
- {
- size_t __a;
- size_t __b;
- size_t __c;
- } __s;
- } __u;
- __u.__t = __v;
- return __murmur2_or_cityhash<size_t>()(&__u, sizeof(__u));
- }
-};
-
-_LIBCPP_SUPPRESS_DEPRECATED_PUSH
-template <class _Tp>
-struct __scalar_hash<_Tp, 4>
-#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
- : public unary_function<_Tp, size_t>
-#endif
-{
-_LIBCPP_SUPPRESS_DEPRECATED_POP
-#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
- _LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
- _LIBCPP_DEPRECATED_IN_CXX17 typedef _Tp argument_type;
-#endif
- _LIBCPP_INLINE_VISIBILITY
- size_t operator()(_Tp __v) const _NOEXCEPT
- {
- union
- {
- _Tp __t;
- struct
- {
- size_t __a;
- size_t __b;
- size_t __c;
- size_t __d;
- } __s;
- } __u;
- __u.__t = __v;
- return __murmur2_or_cityhash<size_t>()(&__u, sizeof(__u));
- }
-};
-
-struct _PairT {
- size_t first;
- size_t second;
-};
-
-_LIBCPP_INLINE_VISIBILITY
-inline size_t __hash_combine(size_t __lhs, size_t __rhs) _NOEXCEPT {
- typedef __scalar_hash<_PairT> _HashT;
- const _PairT __p = {__lhs, __rhs};
- return _HashT()(__p);
-}
-
-_LIBCPP_SUPPRESS_DEPRECATED_PUSH
-template<class _Tp>
-struct _LIBCPP_TEMPLATE_VIS hash<_Tp*>
-#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
- : public unary_function<_Tp*, size_t>
-#endif
-{
-_LIBCPP_SUPPRESS_DEPRECATED_POP
-#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
- _LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
- _LIBCPP_DEPRECATED_IN_CXX17 typedef _Tp* argument_type;
-#endif
- _LIBCPP_INLINE_VISIBILITY
- size_t operator()(_Tp* __v) const _NOEXCEPT
- {
- union
- {
- _Tp* __t;
- size_t __a;
- } __u;
- __u.__t = __v;
- return __murmur2_or_cityhash<size_t>()(&__u, sizeof(__u));
- }
-};
-
-_LIBCPP_SUPPRESS_DEPRECATED_PUSH
-template <>
-struct _LIBCPP_TEMPLATE_VIS hash<bool>
-#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
- : public unary_function<bool, size_t>
-#endif
-{
-_LIBCPP_SUPPRESS_DEPRECATED_POP
-#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
- _LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
- _LIBCPP_DEPRECATED_IN_CXX17 typedef bool argument_type;
-#endif
- _LIBCPP_INLINE_VISIBILITY
- size_t operator()(bool __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
-};
-
-_LIBCPP_SUPPRESS_DEPRECATED_PUSH
-template <>
-struct _LIBCPP_TEMPLATE_VIS hash<char>
-#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
- : public unary_function<char, size_t>
-#endif
-{
-_LIBCPP_SUPPRESS_DEPRECATED_POP
-#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
- _LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
- _LIBCPP_DEPRECATED_IN_CXX17 typedef char argument_type;
-#endif
- _LIBCPP_INLINE_VISIBILITY
- size_t operator()(char __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
-};
-
-_LIBCPP_SUPPRESS_DEPRECATED_PUSH
-template <>
-struct _LIBCPP_TEMPLATE_VIS hash<signed char>
-#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
- : public unary_function<signed char, size_t>
-#endif
-{
-_LIBCPP_SUPPRESS_DEPRECATED_POP
-#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
- _LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
- _LIBCPP_DEPRECATED_IN_CXX17 typedef signed char argument_type;
-#endif
- _LIBCPP_INLINE_VISIBILITY
- size_t operator()(signed char __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
-};
-
-_LIBCPP_SUPPRESS_DEPRECATED_PUSH
-template <>
-struct _LIBCPP_TEMPLATE_VIS hash<unsigned char>
-#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
- : public unary_function<unsigned char, size_t>
-#endif
-{
-_LIBCPP_SUPPRESS_DEPRECATED_POP
-#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
- _LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
- _LIBCPP_DEPRECATED_IN_CXX17 typedef unsigned char argument_type;
-#endif
- _LIBCPP_INLINE_VISIBILITY
- size_t operator()(unsigned char __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
-};
-
-#ifndef _LIBCPP_HAS_NO_CHAR8_T
-_LIBCPP_SUPPRESS_DEPRECATED_PUSH
-template <>
-struct _LIBCPP_TEMPLATE_VIS hash<char8_t>
-#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
- : public unary_function<char8_t, size_t>
-#endif
-{
-_LIBCPP_SUPPRESS_DEPRECATED_POP
-#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
- _LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
- _LIBCPP_DEPRECATED_IN_CXX17 typedef char8_t argument_type;
-#endif
- _LIBCPP_INLINE_VISIBILITY
- size_t operator()(char8_t __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
-};
-#endif // !_LIBCPP_HAS_NO_CHAR8_T
-
-#ifndef _LIBCPP_HAS_NO_UNICODE_CHARS
-
-_LIBCPP_SUPPRESS_DEPRECATED_PUSH
-template <>
-struct _LIBCPP_TEMPLATE_VIS hash<char16_t>
-#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
- : public unary_function<char16_t, size_t>
-#endif
-{
-_LIBCPP_SUPPRESS_DEPRECATED_POP
-#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
- _LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
- _LIBCPP_DEPRECATED_IN_CXX17 typedef char16_t argument_type;
-#endif
- _LIBCPP_INLINE_VISIBILITY
- size_t operator()(char16_t __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
-};
-
-_LIBCPP_SUPPRESS_DEPRECATED_PUSH
-template <>
-struct _LIBCPP_TEMPLATE_VIS hash<char32_t>
-#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
- : public unary_function<char32_t, size_t>
-#endif
-{
-_LIBCPP_SUPPRESS_DEPRECATED_POP
-#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
- _LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
- _LIBCPP_DEPRECATED_IN_CXX17 typedef char32_t argument_type;
-#endif
- _LIBCPP_INLINE_VISIBILITY
- size_t operator()(char32_t __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
-};
-
-#endif // _LIBCPP_HAS_NO_UNICODE_CHARS
-
-_LIBCPP_SUPPRESS_DEPRECATED_PUSH
-template <>
-struct _LIBCPP_TEMPLATE_VIS hash<wchar_t>
-#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
- : public unary_function<wchar_t, size_t>
-#endif
-{
-_LIBCPP_SUPPRESS_DEPRECATED_POP
-#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
- _LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
- _LIBCPP_DEPRECATED_IN_CXX17 typedef wchar_t argument_type;
-#endif
- _LIBCPP_INLINE_VISIBILITY
- size_t operator()(wchar_t __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
-};
-
-_LIBCPP_SUPPRESS_DEPRECATED_PUSH
-template <>
-struct _LIBCPP_TEMPLATE_VIS hash<short>
-#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
- : public unary_function<short, size_t>
-#endif
-{
-_LIBCPP_SUPPRESS_DEPRECATED_POP
-#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
- _LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
- _LIBCPP_DEPRECATED_IN_CXX17 typedef short argument_type;
-#endif
- _LIBCPP_INLINE_VISIBILITY
- size_t operator()(short __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
-};
-
-_LIBCPP_SUPPRESS_DEPRECATED_PUSH
-template <>
-struct _LIBCPP_TEMPLATE_VIS hash<unsigned short>
-#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
- : public unary_function<unsigned short, size_t>
-#endif
-{
-_LIBCPP_SUPPRESS_DEPRECATED_POP
-#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
- _LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
- _LIBCPP_DEPRECATED_IN_CXX17 typedef unsigned short argument_type;
-#endif
- _LIBCPP_INLINE_VISIBILITY
- size_t operator()(unsigned short __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
-};
-
-_LIBCPP_SUPPRESS_DEPRECATED_PUSH
-template <>
-struct _LIBCPP_TEMPLATE_VIS hash<int>
-#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
- : public unary_function<int, size_t>
-#endif
-{
-_LIBCPP_SUPPRESS_DEPRECATED_POP
-#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
- _LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
- _LIBCPP_DEPRECATED_IN_CXX17 typedef int argument_type;
-#endif
- _LIBCPP_INLINE_VISIBILITY
- size_t operator()(int __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
-};
-
-_LIBCPP_SUPPRESS_DEPRECATED_PUSH
-template <>
-struct _LIBCPP_TEMPLATE_VIS hash<unsigned int>
-#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
- : public unary_function<unsigned int, size_t>
-#endif
-{
-_LIBCPP_SUPPRESS_DEPRECATED_POP
-#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
- _LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
- _LIBCPP_DEPRECATED_IN_CXX17 typedef unsigned int argument_type;
-#endif
- _LIBCPP_INLINE_VISIBILITY
- size_t operator()(unsigned int __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
-};
-
-_LIBCPP_SUPPRESS_DEPRECATED_PUSH
-template <>
-struct _LIBCPP_TEMPLATE_VIS hash<long>
-#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
- : public unary_function<long, size_t>
-#endif
-{
-_LIBCPP_SUPPRESS_DEPRECATED_POP
-#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
- _LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
- _LIBCPP_DEPRECATED_IN_CXX17 typedef long argument_type;
-#endif
- _LIBCPP_INLINE_VISIBILITY
- size_t operator()(long __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
-};
-
-_LIBCPP_SUPPRESS_DEPRECATED_PUSH
-template <>
-struct _LIBCPP_TEMPLATE_VIS hash<unsigned long>
-#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
- : public unary_function<unsigned long, size_t>
-#endif
-{
-_LIBCPP_SUPPRESS_DEPRECATED_POP
-#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
- _LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
- _LIBCPP_DEPRECATED_IN_CXX17 typedef unsigned long argument_type;
-#endif
- _LIBCPP_INLINE_VISIBILITY
- size_t operator()(unsigned long __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
-};
-
-template <>
-struct _LIBCPP_TEMPLATE_VIS hash<long long>
- : public __scalar_hash<long long>
-{
-};
-
-template <>
-struct _LIBCPP_TEMPLATE_VIS hash<unsigned long long>
- : public __scalar_hash<unsigned long long>
-{
-};
-
-#ifndef _LIBCPP_HAS_NO_INT128
-
-template <>
-struct _LIBCPP_TEMPLATE_VIS hash<__int128_t>
- : public __scalar_hash<__int128_t>
-{
-};
-
-template <>
-struct _LIBCPP_TEMPLATE_VIS hash<__uint128_t>
- : public __scalar_hash<__uint128_t>
-{
-};
-
-#endif
-
-template <>
-struct _LIBCPP_TEMPLATE_VIS hash<float>
- : public __scalar_hash<float>
-{
- _LIBCPP_INLINE_VISIBILITY
- size_t operator()(float __v) const _NOEXCEPT
- {
- // -0.0 and 0.0 should return same hash
- if (__v == 0.0f)
- return 0;
- return __scalar_hash<float>::operator()(__v);
- }
-};
-
-template <>
-struct _LIBCPP_TEMPLATE_VIS hash<double>
- : public __scalar_hash<double>
-{
- _LIBCPP_INLINE_VISIBILITY
- size_t operator()(double __v) const _NOEXCEPT
- {
- // -0.0 and 0.0 should return same hash
- if (__v == 0.0)
- return 0;
- return __scalar_hash<double>::operator()(__v);
- }
-};
-
-template <>
-struct _LIBCPP_TEMPLATE_VIS hash<long double>
- : public __scalar_hash<long double>
-{
- _LIBCPP_INLINE_VISIBILITY
- size_t operator()(long double __v) const _NOEXCEPT
- {
- // -0.0 and 0.0 should return same hash
- if (__v == 0.0L)
- return 0;
-#if defined(__i386__) || (defined(__x86_64__) && defined(__ILP32__))
- // Zero out padding bits
- union
- {
- long double __t;
- struct
- {
- size_t __a;
- size_t __b;
- size_t __c;
- size_t __d;
- } __s;
- } __u;
- __u.__s.__a = 0;
- __u.__s.__b = 0;
- __u.__s.__c = 0;
- __u.__s.__d = 0;
- __u.__t = __v;
- return __u.__s.__a ^ __u.__s.__b ^ __u.__s.__c ^ __u.__s.__d;
-#elif defined(__x86_64__)
- // Zero out padding bits
- union
- {
- long double __t;
- struct
- {
- size_t __a;
- size_t __b;
- } __s;
- } __u;
- __u.__s.__a = 0;
- __u.__s.__b = 0;
- __u.__t = __v;
- return __u.__s.__a ^ __u.__s.__b;
-#else
- return __scalar_hash<long double>::operator()(__v);
-#endif
- }
-};
-
-#if _LIBCPP_STD_VER > 11
-
-_LIBCPP_SUPPRESS_DEPRECATED_PUSH
-template <class _Tp, bool = is_enum<_Tp>::value>
-struct _LIBCPP_TEMPLATE_VIS __enum_hash
-#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
- : public unary_function<_Tp, size_t>
-#endif
-{
-_LIBCPP_SUPPRESS_DEPRECATED_POP
-#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
- _LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
- _LIBCPP_DEPRECATED_IN_CXX17 typedef _Tp argument_type;
-#endif
- _LIBCPP_INLINE_VISIBILITY
- size_t operator()(_Tp __v) const _NOEXCEPT
- {
- typedef typename underlying_type<_Tp>::type type;
- return hash<type>{}(static_cast<type>(__v));
- }
-};
-template <class _Tp>
-struct _LIBCPP_TEMPLATE_VIS __enum_hash<_Tp, false> {
- __enum_hash() = delete;
- __enum_hash(__enum_hash const&) = delete;
- __enum_hash& operator=(__enum_hash const&) = delete;
-};
-
-template <class _Tp>
-struct _LIBCPP_TEMPLATE_VIS hash : public __enum_hash<_Tp>
-{
-};
-#endif
-
-#if _LIBCPP_STD_VER > 14
-
-_LIBCPP_SUPPRESS_DEPRECATED_PUSH
-template <>
-struct _LIBCPP_TEMPLATE_VIS hash<nullptr_t>
-#if !defined(_LIBCPP_ABI_NO_BINDER_BASES)
- : public unary_function<nullptr_t, size_t>
-#endif
-{
-_LIBCPP_SUPPRESS_DEPRECATED_POP
-#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_BINDER_TYPEDEFS)
- _LIBCPP_DEPRECATED_IN_CXX17 typedef size_t result_type;
- _LIBCPP_DEPRECATED_IN_CXX17 typedef nullptr_t argument_type;
-#endif
- _LIBCPP_INLINE_VISIBILITY
- size_t operator()(nullptr_t) const _NOEXCEPT {
- return 662607004ull;
- }
-};
-#endif
-
-#ifndef _LIBCPP_CXX03_LANG
-template <class _Key, class _Hash>
-using __check_hash_requirements _LIBCPP_NODEBUG_TYPE = integral_constant<bool,
- is_copy_constructible<_Hash>::value &&
- is_move_constructible<_Hash>::value &&
- __invokable_r<size_t, _Hash, _Key const&>::value
->;
-
-template <class _Key, class _Hash = hash<_Key> >
-using __has_enabled_hash _LIBCPP_NODEBUG_TYPE = integral_constant<bool,
- __check_hash_requirements<_Key, _Hash>::value &&
- is_default_constructible<_Hash>::value
->;
-
-#if _LIBCPP_STD_VER > 14
-template <class _Type, class>
-using __enable_hash_helper_imp _LIBCPP_NODEBUG_TYPE = _Type;
-
-template <class _Type, class ..._Keys>
-using __enable_hash_helper _LIBCPP_NODEBUG_TYPE = __enable_hash_helper_imp<_Type,
- typename enable_if<__all<__has_enabled_hash<_Keys>::value...>::value>::type
->;
-#else
-template <class _Type, class ...>
-using __enable_hash_helper _LIBCPP_NODEBUG_TYPE = _Type;
-#endif
-
-#endif // !_LIBCPP_CXX03_LANG
-
-_LIBCPP_END_NAMESPACE_STD
-
-_LIBCPP_POP_MACROS
-
#endif // _LIBCPP_UTILITY