mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-06-27 14:58:30 +00:00
Upgrade to 2022-era LLVM LIBCXX
This commit is contained in:
Justine Tunney
parent
2f4ca71f26
commit
8e68384e15
2078 changed files with 165657 additions and 65010 deletions
758
third_party/libcxx/compare
vendored
758
third_party/libcxx/compare
vendored
|
|
@ -1,5 +1,5 @@
|
|||
// -*- C++ -*-
|
||||
//===-------------------------- compare -----------------------------------===//
|
||||
//===----------------------------------------------------------------------===//
|
||||
//
|
||||
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
||||
// See https://llvm.org/LICENSE.txt for license information.
|
||||
|
|
@ -15,15 +15,13 @@
|
|||
|
||||
namespace std {
|
||||
// [cmp.categories], comparison category types
|
||||
class weak_equality;
|
||||
class strong_equality;
|
||||
class partial_ordering;
|
||||
class weak_ordering;
|
||||
class strong_ordering;
|
||||
|
||||
// named comparison functions
|
||||
constexpr bool is_eq (weak_equality cmp) noexcept { return cmp == 0; }
|
||||
constexpr bool is_neq (weak_equality cmp) noexcept { return cmp != 0; }
|
||||
constexpr bool is_eq (partial_ordering cmp) noexcept { return cmp == 0; }
|
||||
constexpr bool is_neq (partial_ordering cmp) noexcept { return cmp != 0; }
|
||||
constexpr bool is_lt (partial_ordering cmp) noexcept { return cmp < 0; }
|
||||
constexpr bool is_lteq(partial_ordering cmp) noexcept { return cmp <= 0; }
|
||||
constexpr bool is_gt (partial_ordering cmp) noexcept { return cmp > 0; }
|
||||
|
|
@ -37,642 +35,134 @@ namespace std {
|
|||
template<class... Ts>
|
||||
using common_comparison_category_t = typename common_comparison_category<Ts...>::type;
|
||||
|
||||
// [cmp.concept], concept three_way_comparable
|
||||
template<class T, class Cat = partial_ordering>
|
||||
concept three_way_comparable = see below;
|
||||
template<class T, class U, class Cat = partial_ordering>
|
||||
concept three_way_comparable_with = see below;
|
||||
|
||||
// [cmp.result], result of three-way comparison
|
||||
template<class T, class U = T> struct compare_three_way_result;
|
||||
|
||||
template<class T, class U = T>
|
||||
using compare_three_way_result_t = typename compare_three_way_result<T, U>::type;
|
||||
|
||||
// [comparisons.three.way], class compare_three_way
|
||||
struct compare_three_way; // C++20
|
||||
|
||||
// [cmp.alg], comparison algorithms
|
||||
template<class T> constexpr strong_ordering strong_order(const T& a, const T& b);
|
||||
template<class T> constexpr weak_ordering weak_order(const T& a, const T& b);
|
||||
template<class T> constexpr partial_ordering partial_order(const T& a, const T& b);
|
||||
template<class T> constexpr strong_equality strong_equal(const T& a, const T& b);
|
||||
template<class T> constexpr weak_equality weak_equal(const T& a, const T& b);
|
||||
inline namespace unspecified {
|
||||
inline constexpr unspecified strong_order = unspecified;
|
||||
inline constexpr unspecified weak_order = unspecified;
|
||||
inline constexpr unspecified partial_order = unspecified;
|
||||
inline constexpr unspecified compare_strong_order_fallback = unspecified;
|
||||
inline constexpr unspecified compare_weak_order_fallback = unspecified;
|
||||
inline constexpr unspecified compare_partial_order_fallback = unspecified;
|
||||
}
|
||||
|
||||
// [cmp.partialord], Class partial_ordering
|
||||
class partial_ordering {
|
||||
public:
|
||||
// valid values
|
||||
static const partial_ordering less;
|
||||
static const partial_ordering equivalent;
|
||||
static const partial_ordering greater;
|
||||
static const partial_ordering unordered;
|
||||
|
||||
// comparisons
|
||||
friend constexpr bool operator==(partial_ordering v, unspecified) noexcept;
|
||||
friend constexpr bool operator==(partial_ordering v, partial_ordering w) noexcept = default;
|
||||
friend constexpr bool operator< (partial_ordering v, unspecified) noexcept;
|
||||
friend constexpr bool operator> (partial_ordering v, unspecified) noexcept;
|
||||
friend constexpr bool operator<=(partial_ordering v, unspecified) noexcept;
|
||||
friend constexpr bool operator>=(partial_ordering v, unspecified) noexcept;
|
||||
friend constexpr bool operator< (unspecified, partial_ordering v) noexcept;
|
||||
friend constexpr bool operator> (unspecified, partial_ordering v) noexcept;
|
||||
friend constexpr bool operator<=(unspecified, partial_ordering v) noexcept;
|
||||
friend constexpr bool operator>=(unspecified, partial_ordering v) noexcept;
|
||||
friend constexpr partial_ordering operator<=>(partial_ordering v, unspecified) noexcept;
|
||||
friend constexpr partial_ordering operator<=>(unspecified, partial_ordering v) noexcept;
|
||||
};
|
||||
|
||||
// [cmp.weakord], Class weak_ordering
|
||||
class weak_ordering {
|
||||
public:
|
||||
// valid values
|
||||
static const weak_ordering less;
|
||||
static const weak_ordering equivalent;
|
||||
static const weak_ordering greater;
|
||||
|
||||
// conversions
|
||||
constexpr operator partial_ordering() const noexcept;
|
||||
|
||||
// comparisons
|
||||
friend constexpr bool operator==(weak_ordering v, unspecified) noexcept;
|
||||
friend constexpr bool operator==(weak_ordering v, weak_ordering w) noexcept = default;
|
||||
friend constexpr bool operator< (weak_ordering v, unspecified) noexcept;
|
||||
friend constexpr bool operator> (weak_ordering v, unspecified) noexcept;
|
||||
friend constexpr bool operator<=(weak_ordering v, unspecified) noexcept;
|
||||
friend constexpr bool operator>=(weak_ordering v, unspecified) noexcept;
|
||||
friend constexpr bool operator< (unspecified, weak_ordering v) noexcept;
|
||||
friend constexpr bool operator> (unspecified, weak_ordering v) noexcept;
|
||||
friend constexpr bool operator<=(unspecified, weak_ordering v) noexcept;
|
||||
friend constexpr bool operator>=(unspecified, weak_ordering v) noexcept;
|
||||
friend constexpr weak_ordering operator<=>(weak_ordering v, unspecified) noexcept;
|
||||
friend constexpr weak_ordering operator<=>(unspecified, weak_ordering v) noexcept;
|
||||
};
|
||||
|
||||
// [cmp.strongord], Class strong_ordering
|
||||
class strong_ordering {
|
||||
public:
|
||||
// valid values
|
||||
static const strong_ordering less;
|
||||
static const strong_ordering equal;
|
||||
static const strong_ordering equivalent;
|
||||
static const strong_ordering greater;
|
||||
|
||||
// conversions
|
||||
constexpr operator partial_ordering() const noexcept;
|
||||
constexpr operator weak_ordering() const noexcept;
|
||||
|
||||
// comparisons
|
||||
friend constexpr bool operator==(strong_ordering v, unspecified) noexcept;
|
||||
friend constexpr bool operator==(strong_ordering v, strong_ordering w) noexcept = default;
|
||||
friend constexpr bool operator< (strong_ordering v, unspecified) noexcept;
|
||||
friend constexpr bool operator> (strong_ordering v, unspecified) noexcept;
|
||||
friend constexpr bool operator<=(strong_ordering v, unspecified) noexcept;
|
||||
friend constexpr bool operator>=(strong_ordering v, unspecified) noexcept;
|
||||
friend constexpr bool operator< (unspecified, strong_ordering v) noexcept;
|
||||
friend constexpr bool operator> (unspecified, strong_ordering v) noexcept;
|
||||
friend constexpr bool operator<=(unspecified, strong_ordering v) noexcept;
|
||||
friend constexpr bool operator>=(unspecified, strong_ordering v) noexcept;
|
||||
friend constexpr strong_ordering operator<=>(strong_ordering v, unspecified) noexcept;
|
||||
friend constexpr strong_ordering operator<=>(unspecified, strong_ordering v) noexcept;
|
||||
};
|
||||
}
|
||||
*/
|
||||
|
||||
#include "third_party/libcxx/__config"
|
||||
#include "third_party/libcxx/type_traits"
|
||||
#include "third_party/libcxx/array"
|
||||
#include <__assert> // all public C++ headers provide the assertion handler
|
||||
#include <__compare/common_comparison_category.h>
|
||||
#include <__compare/compare_partial_order_fallback.h>
|
||||
#include <__compare/compare_strong_order_fallback.h>
|
||||
#include <__compare/compare_three_way.h>
|
||||
#include <__compare/compare_three_way_result.h>
|
||||
#include <__compare/compare_weak_order_fallback.h>
|
||||
#include <__compare/is_eq.h>
|
||||
#include <__compare/ordering.h>
|
||||
#include <__compare/partial_order.h>
|
||||
#include <__compare/strong_order.h>
|
||||
#include <__compare/synth_three_way.h>
|
||||
#include <__compare/three_way_comparable.h>
|
||||
#include <__compare/weak_order.h>
|
||||
#include <__config>
|
||||
#include <version>
|
||||
|
||||
#ifndef _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER
|
||||
#pragma GCC system_header
|
||||
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
|
||||
# pragma GCC system_header
|
||||
#endif
|
||||
|
||||
_LIBCPP_BEGIN_NAMESPACE_STD
|
||||
|
||||
#if _LIBCPP_STD_VER > 17
|
||||
|
||||
// exposition only
|
||||
enum class _LIBCPP_ENUM_VIS _EqResult : unsigned char {
|
||||
__zero = 0,
|
||||
__equal = __zero,
|
||||
__equiv = __equal,
|
||||
__nonequal = 1,
|
||||
__nonequiv = __nonequal
|
||||
};
|
||||
|
||||
enum class _LIBCPP_ENUM_VIS _OrdResult : signed char {
|
||||
__less = -1,
|
||||
__greater = 1
|
||||
};
|
||||
|
||||
enum class _LIBCPP_ENUM_VIS _NCmpResult : signed char {
|
||||
__unordered = -127
|
||||
};
|
||||
|
||||
struct _CmpUnspecifiedType;
|
||||
using _CmpUnspecifiedParam = void (_CmpUnspecifiedType::*)();
|
||||
|
||||
class weak_equality {
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr explicit weak_equality(_EqResult __val) noexcept : __value_(__val) {}
|
||||
|
||||
public:
|
||||
static const weak_equality equivalent;
|
||||
static const weak_equality nonequivalent;
|
||||
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator==(weak_equality __v, _CmpUnspecifiedParam) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator==(_CmpUnspecifiedParam, weak_equality __v) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator!=(weak_equality __v, _CmpUnspecifiedParam) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator!=(_CmpUnspecifiedParam, weak_equality __v) noexcept;
|
||||
|
||||
#ifndef _LIBCPP_HAS_NO_SPACESHIP_OPERATOR
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr weak_equality operator<=>(weak_equality __v, _CmpUnspecifiedParam) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr weak_equality operator<=>(_CmpUnspecifiedParam, weak_equality __v) noexcept;
|
||||
#if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20
|
||||
# include <type_traits>
|
||||
#endif
|
||||
|
||||
private:
|
||||
_EqResult __value_;
|
||||
};
|
||||
|
||||
_LIBCPP_INLINE_VAR constexpr weak_equality weak_equality::equivalent(_EqResult::__equiv);
|
||||
_LIBCPP_INLINE_VAR constexpr weak_equality weak_equality::nonequivalent(_EqResult::__nonequiv);
|
||||
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
inline constexpr bool operator==(weak_equality __v, _CmpUnspecifiedParam) noexcept {
|
||||
return __v.__value_ == _EqResult::__zero;
|
||||
}
|
||||
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
inline constexpr bool operator==(_CmpUnspecifiedParam, weak_equality __v) noexcept {
|
||||
return __v.__value_ == _EqResult::__zero;
|
||||
}
|
||||
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
inline constexpr bool operator!=(weak_equality __v, _CmpUnspecifiedParam) noexcept {
|
||||
return __v.__value_ != _EqResult::__zero;
|
||||
}
|
||||
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
inline constexpr bool operator!=(_CmpUnspecifiedParam, weak_equality __v) noexcept {
|
||||
return __v.__value_ != _EqResult::__zero;
|
||||
}
|
||||
|
||||
#ifndef _LIBCPP_HAS_NO_SPACESHIP_OPERATOR
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
inline constexpr weak_equality operator<=>(weak_equality __v, _CmpUnspecifiedParam) noexcept {
|
||||
return __v;
|
||||
}
|
||||
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
inline constexpr weak_equality operator<=>(_CmpUnspecifiedParam, weak_equality __v) noexcept {
|
||||
return __v;
|
||||
}
|
||||
#endif
|
||||
|
||||
class strong_equality {
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
explicit constexpr strong_equality(_EqResult __val) noexcept : __value_(__val) {}
|
||||
|
||||
public:
|
||||
static const strong_equality equal;
|
||||
static const strong_equality nonequal;
|
||||
static const strong_equality equivalent;
|
||||
static const strong_equality nonequivalent;
|
||||
|
||||
// conversion
|
||||
_LIBCPP_INLINE_VISIBILITY constexpr operator weak_equality() const noexcept {
|
||||
return __value_ == _EqResult::__zero ? weak_equality::equivalent
|
||||
: weak_equality::nonequivalent;
|
||||
}
|
||||
|
||||
// comparisons
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator==(strong_equality __v, _CmpUnspecifiedParam) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator!=(strong_equality __v, _CmpUnspecifiedParam) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator==(_CmpUnspecifiedParam, strong_equality __v) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator!=(_CmpUnspecifiedParam, strong_equality __v) noexcept;
|
||||
|
||||
#ifndef _LIBCPP_HAS_NO_SPACESHIP_OPERATOR
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr strong_equality operator<=>(strong_equality __v, _CmpUnspecifiedParam) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr strong_equality operator<=>(_CmpUnspecifiedParam, strong_equality __v) noexcept;
|
||||
#endif
|
||||
private:
|
||||
_EqResult __value_;
|
||||
};
|
||||
|
||||
_LIBCPP_INLINE_VAR constexpr strong_equality strong_equality::equal(_EqResult::__equal);
|
||||
_LIBCPP_INLINE_VAR constexpr strong_equality strong_equality::nonequal(_EqResult::__nonequal);
|
||||
_LIBCPP_INLINE_VAR constexpr strong_equality strong_equality::equivalent(_EqResult::__equiv);
|
||||
_LIBCPP_INLINE_VAR constexpr strong_equality strong_equality::nonequivalent(_EqResult::__nonequiv);
|
||||
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool operator==(strong_equality __v, _CmpUnspecifiedParam) noexcept {
|
||||
return __v.__value_ == _EqResult::__zero;
|
||||
}
|
||||
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool operator==(_CmpUnspecifiedParam, strong_equality __v) noexcept {
|
||||
return __v.__value_ == _EqResult::__zero;
|
||||
}
|
||||
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool operator!=(strong_equality __v, _CmpUnspecifiedParam) noexcept {
|
||||
return __v.__value_ != _EqResult::__zero;
|
||||
}
|
||||
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool operator!=(_CmpUnspecifiedParam, strong_equality __v) noexcept {
|
||||
return __v.__value_ != _EqResult::__zero;
|
||||
}
|
||||
|
||||
#ifndef _LIBCPP_HAS_NO_SPACESHIP_OPERATOR
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr strong_equality operator<=>(strong_equality __v, _CmpUnspecifiedParam) noexcept {
|
||||
return __v;
|
||||
}
|
||||
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr strong_equality operator<=>(_CmpUnspecifiedParam, strong_equality __v) noexcept {
|
||||
return __v;
|
||||
}
|
||||
#endif // _LIBCPP_HAS_NO_SPACESHIP_OPERATOR
|
||||
|
||||
class partial_ordering {
|
||||
using _ValueT = signed char;
|
||||
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
explicit constexpr partial_ordering(_EqResult __v) noexcept
|
||||
: __value_(_ValueT(__v)) {}
|
||||
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
explicit constexpr partial_ordering(_OrdResult __v) noexcept
|
||||
: __value_(_ValueT(__v)) {}
|
||||
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
explicit constexpr partial_ordering(_NCmpResult __v) noexcept
|
||||
: __value_(_ValueT(__v)) {}
|
||||
|
||||
constexpr bool __is_ordered() const noexcept {
|
||||
return __value_ != _ValueT(_NCmpResult::__unordered);
|
||||
}
|
||||
public:
|
||||
// valid values
|
||||
static const partial_ordering less;
|
||||
static const partial_ordering equivalent;
|
||||
static const partial_ordering greater;
|
||||
static const partial_ordering unordered;
|
||||
|
||||
// conversion
|
||||
constexpr operator weak_equality() const noexcept {
|
||||
return __value_ == 0 ? weak_equality::equivalent : weak_equality::nonequivalent;
|
||||
}
|
||||
|
||||
// comparisons
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator==(partial_ordering __v, _CmpUnspecifiedParam) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator!=(partial_ordering __v, _CmpUnspecifiedParam) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator< (partial_ordering __v, _CmpUnspecifiedParam) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator<=(partial_ordering __v, _CmpUnspecifiedParam) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator> (partial_ordering __v, _CmpUnspecifiedParam) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator>=(partial_ordering __v, _CmpUnspecifiedParam) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator==(_CmpUnspecifiedParam, partial_ordering __v) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator!=(_CmpUnspecifiedParam, partial_ordering __v) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator< (_CmpUnspecifiedParam, partial_ordering __v) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator<=(_CmpUnspecifiedParam, partial_ordering __v) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator> (_CmpUnspecifiedParam, partial_ordering __v) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator>=(_CmpUnspecifiedParam, partial_ordering __v) noexcept;
|
||||
|
||||
#ifndef _LIBCPP_HAS_NO_SPACESHIP_OPERATOR
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr partial_ordering operator<=>(partial_ordering __v, _CmpUnspecifiedParam) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr partial_ordering operator<=>(_CmpUnspecifiedParam, partial_ordering __v) noexcept;
|
||||
#endif
|
||||
|
||||
private:
|
||||
_ValueT __value_;
|
||||
};
|
||||
|
||||
_LIBCPP_INLINE_VAR constexpr partial_ordering partial_ordering::less(_OrdResult::__less);
|
||||
_LIBCPP_INLINE_VAR constexpr partial_ordering partial_ordering::equivalent(_EqResult::__equiv);
|
||||
_LIBCPP_INLINE_VAR constexpr partial_ordering partial_ordering::greater(_OrdResult::__greater);
|
||||
_LIBCPP_INLINE_VAR constexpr partial_ordering partial_ordering::unordered(_NCmpResult ::__unordered);
|
||||
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool operator==(partial_ordering __v, _CmpUnspecifiedParam) noexcept {
|
||||
return __v.__is_ordered() && __v.__value_ == 0;
|
||||
}
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool operator< (partial_ordering __v, _CmpUnspecifiedParam) noexcept {
|
||||
return __v.__is_ordered() && __v.__value_ < 0;
|
||||
}
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool operator<=(partial_ordering __v, _CmpUnspecifiedParam) noexcept {
|
||||
return __v.__is_ordered() && __v.__value_ <= 0;
|
||||
}
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool operator> (partial_ordering __v, _CmpUnspecifiedParam) noexcept {
|
||||
return __v.__is_ordered() && __v.__value_ > 0;
|
||||
}
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool operator>=(partial_ordering __v, _CmpUnspecifiedParam) noexcept {
|
||||
return __v.__is_ordered() && __v.__value_ >= 0;
|
||||
}
|
||||
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool operator==(_CmpUnspecifiedParam, partial_ordering __v) noexcept {
|
||||
return __v.__is_ordered() && 0 == __v.__value_;
|
||||
}
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool operator< (_CmpUnspecifiedParam, partial_ordering __v) noexcept {
|
||||
return __v.__is_ordered() && 0 < __v.__value_;
|
||||
}
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool operator<=(_CmpUnspecifiedParam, partial_ordering __v) noexcept {
|
||||
return __v.__is_ordered() && 0 <= __v.__value_;
|
||||
}
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool operator> (_CmpUnspecifiedParam, partial_ordering __v) noexcept {
|
||||
return __v.__is_ordered() && 0 > __v.__value_;
|
||||
}
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool operator>=(_CmpUnspecifiedParam, partial_ordering __v) noexcept {
|
||||
return __v.__is_ordered() && 0 >= __v.__value_;
|
||||
}
|
||||
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool operator!=(partial_ordering __v, _CmpUnspecifiedParam) noexcept {
|
||||
return !__v.__is_ordered() || __v.__value_ != 0;
|
||||
}
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool operator!=(_CmpUnspecifiedParam, partial_ordering __v) noexcept {
|
||||
return !__v.__is_ordered() || __v.__value_ != 0;
|
||||
}
|
||||
|
||||
#ifndef _LIBCPP_HAS_NO_SPACESHIP_OPERATOR
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr partial_ordering operator<=>(partial_ordering __v, _CmpUnspecifiedParam) noexcept {
|
||||
return __v;
|
||||
}
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr partial_ordering operator<=>(_CmpUnspecifiedParam, partial_ordering __v) noexcept {
|
||||
return __v < 0 ? partial_ordering::greater : (__v > 0 ? partial_ordering::less : __v);
|
||||
}
|
||||
#endif // _LIBCPP_HAS_NO_SPACESHIP_OPERATOR
|
||||
|
||||
class weak_ordering {
|
||||
using _ValueT = signed char;
|
||||
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
explicit constexpr weak_ordering(_EqResult __v) noexcept : __value_(_ValueT(__v)) {}
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
explicit constexpr weak_ordering(_OrdResult __v) noexcept : __value_(_ValueT(__v)) {}
|
||||
|
||||
public:
|
||||
static const weak_ordering less;
|
||||
static const weak_ordering equivalent;
|
||||
static const weak_ordering greater;
|
||||
|
||||
// conversions
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr operator weak_equality() const noexcept {
|
||||
return __value_ == 0 ? weak_equality::equivalent
|
||||
: weak_equality::nonequivalent;
|
||||
}
|
||||
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr operator partial_ordering() const noexcept {
|
||||
return __value_ == 0 ? partial_ordering::equivalent
|
||||
: (__value_ < 0 ? partial_ordering::less : partial_ordering::greater);
|
||||
}
|
||||
|
||||
// comparisons
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator==(weak_ordering __v, _CmpUnspecifiedParam) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator!=(weak_ordering __v, _CmpUnspecifiedParam) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator< (weak_ordering __v, _CmpUnspecifiedParam) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator<=(weak_ordering __v, _CmpUnspecifiedParam) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator> (weak_ordering __v, _CmpUnspecifiedParam) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator>=(weak_ordering __v, _CmpUnspecifiedParam) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator==(_CmpUnspecifiedParam, weak_ordering __v) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator!=(_CmpUnspecifiedParam, weak_ordering __v) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator< (_CmpUnspecifiedParam, weak_ordering __v) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator<=(_CmpUnspecifiedParam, weak_ordering __v) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator> (_CmpUnspecifiedParam, weak_ordering __v) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator>=(_CmpUnspecifiedParam, weak_ordering __v) noexcept;
|
||||
|
||||
#ifndef _LIBCPP_HAS_NO_SPACESHIP_OPERATOR
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr weak_ordering operator<=>(weak_ordering __v, _CmpUnspecifiedParam) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr weak_ordering operator<=>(_CmpUnspecifiedParam, weak_ordering __v) noexcept;
|
||||
#endif
|
||||
|
||||
private:
|
||||
_ValueT __value_;
|
||||
};
|
||||
|
||||
_LIBCPP_INLINE_VAR constexpr weak_ordering weak_ordering::less(_OrdResult::__less);
|
||||
_LIBCPP_INLINE_VAR constexpr weak_ordering weak_ordering::equivalent(_EqResult::__equiv);
|
||||
_LIBCPP_INLINE_VAR constexpr weak_ordering weak_ordering::greater(_OrdResult::__greater);
|
||||
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool operator==(weak_ordering __v, _CmpUnspecifiedParam) noexcept {
|
||||
return __v.__value_ == 0;
|
||||
}
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool operator!=(weak_ordering __v, _CmpUnspecifiedParam) noexcept {
|
||||
return __v.__value_ != 0;
|
||||
}
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool operator< (weak_ordering __v, _CmpUnspecifiedParam) noexcept {
|
||||
return __v.__value_ < 0;
|
||||
}
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool operator<=(weak_ordering __v, _CmpUnspecifiedParam) noexcept {
|
||||
return __v.__value_ <= 0;
|
||||
}
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool operator> (weak_ordering __v, _CmpUnspecifiedParam) noexcept {
|
||||
return __v.__value_ > 0;
|
||||
}
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool operator>=(weak_ordering __v, _CmpUnspecifiedParam) noexcept {
|
||||
return __v.__value_ >= 0;
|
||||
}
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool operator==(_CmpUnspecifiedParam, weak_ordering __v) noexcept {
|
||||
return 0 == __v.__value_;
|
||||
}
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool operator!=(_CmpUnspecifiedParam, weak_ordering __v) noexcept {
|
||||
return 0 != __v.__value_;
|
||||
}
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool operator< (_CmpUnspecifiedParam, weak_ordering __v) noexcept {
|
||||
return 0 < __v.__value_;
|
||||
}
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool operator<=(_CmpUnspecifiedParam, weak_ordering __v) noexcept {
|
||||
return 0 <= __v.__value_;
|
||||
}
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool operator> (_CmpUnspecifiedParam, weak_ordering __v) noexcept {
|
||||
return 0 > __v.__value_;
|
||||
}
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool operator>=(_CmpUnspecifiedParam, weak_ordering __v) noexcept {
|
||||
return 0 >= __v.__value_;
|
||||
}
|
||||
|
||||
#ifndef _LIBCPP_HAS_NO_SPACESHIP_OPERATOR
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr weak_ordering operator<=>(weak_ordering __v, _CmpUnspecifiedParam) noexcept {
|
||||
return __v;
|
||||
}
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr weak_ordering operator<=>(_CmpUnspecifiedParam, weak_ordering __v) noexcept {
|
||||
return __v < 0 ? weak_ordering::greater : (__v > 0 ? weak_ordering::less : __v);
|
||||
}
|
||||
#endif // _LIBCPP_HAS_NO_SPACESHIP_OPERATOR
|
||||
|
||||
class strong_ordering {
|
||||
using _ValueT = signed char;
|
||||
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
explicit constexpr strong_ordering(_EqResult __v) noexcept : __value_(_ValueT(__v)) {}
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
explicit constexpr strong_ordering(_OrdResult __v) noexcept : __value_(_ValueT(__v)) {}
|
||||
|
||||
public:
|
||||
static const strong_ordering less;
|
||||
static const strong_ordering equal;
|
||||
static const strong_ordering equivalent;
|
||||
static const strong_ordering greater;
|
||||
|
||||
// conversions
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr operator weak_equality() const noexcept {
|
||||
return __value_ == 0 ? weak_equality::equivalent
|
||||
: weak_equality::nonequivalent;
|
||||
}
|
||||
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr operator strong_equality() const noexcept {
|
||||
return __value_ == 0 ? strong_equality::equal
|
||||
: strong_equality::nonequal;
|
||||
}
|
||||
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr operator partial_ordering() const noexcept {
|
||||
return __value_ == 0 ? partial_ordering::equivalent
|
||||
: (__value_ < 0 ? partial_ordering::less : partial_ordering::greater);
|
||||
}
|
||||
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr operator weak_ordering() const noexcept {
|
||||
return __value_ == 0 ? weak_ordering::equivalent
|
||||
: (__value_ < 0 ? weak_ordering::less : weak_ordering::greater);
|
||||
}
|
||||
|
||||
// comparisons
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator==(strong_ordering __v, _CmpUnspecifiedParam) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator!=(strong_ordering __v, _CmpUnspecifiedParam) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator< (strong_ordering __v, _CmpUnspecifiedParam) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator<=(strong_ordering __v, _CmpUnspecifiedParam) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator> (strong_ordering __v, _CmpUnspecifiedParam) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator>=(strong_ordering __v, _CmpUnspecifiedParam) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator==(_CmpUnspecifiedParam, strong_ordering __v) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator!=(_CmpUnspecifiedParam, strong_ordering __v) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator< (_CmpUnspecifiedParam, strong_ordering __v) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator<=(_CmpUnspecifiedParam, strong_ordering __v) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator> (_CmpUnspecifiedParam, strong_ordering __v) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr bool operator>=(_CmpUnspecifiedParam, strong_ordering __v) noexcept;
|
||||
|
||||
#ifndef _LIBCPP_HAS_NO_SPACESHIP_OPERATOR
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr strong_ordering operator<=>(strong_ordering __v, _CmpUnspecifiedParam) noexcept;
|
||||
_LIBCPP_INLINE_VISIBILITY friend constexpr strong_ordering operator<=>(_CmpUnspecifiedParam, strong_ordering __v) noexcept;
|
||||
#endif
|
||||
|
||||
private:
|
||||
_ValueT __value_;
|
||||
};
|
||||
|
||||
_LIBCPP_INLINE_VAR constexpr strong_ordering strong_ordering::less(_OrdResult::__less);
|
||||
_LIBCPP_INLINE_VAR constexpr strong_ordering strong_ordering::equal(_EqResult::__equal);
|
||||
_LIBCPP_INLINE_VAR constexpr strong_ordering strong_ordering::equivalent(_EqResult::__equiv);
|
||||
_LIBCPP_INLINE_VAR constexpr strong_ordering strong_ordering::greater(_OrdResult::__greater);
|
||||
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool operator==(strong_ordering __v, _CmpUnspecifiedParam) noexcept {
|
||||
return __v.__value_ == 0;
|
||||
}
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool operator!=(strong_ordering __v, _CmpUnspecifiedParam) noexcept {
|
||||
return __v.__value_ != 0;
|
||||
}
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool operator< (strong_ordering __v, _CmpUnspecifiedParam) noexcept {
|
||||
return __v.__value_ < 0;
|
||||
}
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool operator<=(strong_ordering __v, _CmpUnspecifiedParam) noexcept {
|
||||
return __v.__value_ <= 0;
|
||||
}
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool operator> (strong_ordering __v, _CmpUnspecifiedParam) noexcept {
|
||||
return __v.__value_ > 0;
|
||||
}
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool operator>=(strong_ordering __v, _CmpUnspecifiedParam) noexcept {
|
||||
return __v.__value_ >= 0;
|
||||
}
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool operator==(_CmpUnspecifiedParam, strong_ordering __v) noexcept {
|
||||
return 0 == __v.__value_;
|
||||
}
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool operator!=(_CmpUnspecifiedParam, strong_ordering __v) noexcept {
|
||||
return 0 != __v.__value_;
|
||||
}
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool operator< (_CmpUnspecifiedParam, strong_ordering __v) noexcept {
|
||||
return 0 < __v.__value_;
|
||||
}
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool operator<=(_CmpUnspecifiedParam, strong_ordering __v) noexcept {
|
||||
return 0 <= __v.__value_;
|
||||
}
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool operator> (_CmpUnspecifiedParam, strong_ordering __v) noexcept {
|
||||
return 0 > __v.__value_;
|
||||
}
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool operator>=(_CmpUnspecifiedParam, strong_ordering __v) noexcept {
|
||||
return 0 >= __v.__value_;
|
||||
}
|
||||
|
||||
#ifndef _LIBCPP_HAS_NO_SPACESHIP_OPERATOR
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr strong_ordering operator<=>(strong_ordering __v, _CmpUnspecifiedParam) noexcept {
|
||||
return __v;
|
||||
}
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr strong_ordering operator<=>(_CmpUnspecifiedParam, strong_ordering __v) noexcept {
|
||||
return __v < 0 ? strong_ordering::greater : (__v > 0 ? strong_ordering::less : __v);
|
||||
}
|
||||
#endif // _LIBCPP_HAS_NO_SPACESHIP_OPERATOR
|
||||
|
||||
// named comparison functions
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool is_eq(weak_equality __cmp) noexcept { return __cmp == 0; }
|
||||
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool is_neq(weak_equality __cmp) noexcept { return __cmp != 0; }
|
||||
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool is_lt(partial_ordering __cmp) noexcept { return __cmp < 0; }
|
||||
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool is_lteq(partial_ordering __cmp) noexcept { return __cmp <= 0; }
|
||||
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool is_gt(partial_ordering __cmp) noexcept { return __cmp > 0; }
|
||||
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr bool is_gteq(partial_ordering __cmp) noexcept { return __cmp >= 0; }
|
||||
|
||||
namespace __comp_detail {
|
||||
|
||||
enum _ClassifyCompCategory : unsigned{
|
||||
_None,
|
||||
_WeakEq,
|
||||
_StrongEq,
|
||||
_PartialOrd,
|
||||
_WeakOrd,
|
||||
_StrongOrd,
|
||||
_CCC_Size
|
||||
};
|
||||
|
||||
template <class _Tp>
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
constexpr _ClassifyCompCategory __type_to_enum() noexcept {
|
||||
if (is_same_v<_Tp, weak_equality>)
|
||||
return _WeakEq;
|
||||
if (is_same_v<_Tp, strong_equality>)
|
||||
return _StrongEq;
|
||||
if (is_same_v<_Tp, partial_ordering>)
|
||||
return _PartialOrd;
|
||||
if (is_same_v<_Tp, weak_ordering>)
|
||||
return _WeakOrd;
|
||||
if (is_same_v<_Tp, strong_ordering>)
|
||||
return _StrongOrd;
|
||||
return _None;
|
||||
}
|
||||
|
||||
template <size_t _Size>
|
||||
constexpr _ClassifyCompCategory
|
||||
__compute_comp_type(std::array<_ClassifyCompCategory, _Size> __types) {
|
||||
std::array<int, _CCC_Size> __seen = {};
|
||||
for (auto __type : __types)
|
||||
++__seen[__type];
|
||||
if (__seen[_None])
|
||||
return _None;
|
||||
if (__seen[_WeakEq])
|
||||
return _WeakEq;
|
||||
if (__seen[_StrongEq] && (__seen[_PartialOrd] || __seen[_WeakOrd]))
|
||||
return _WeakEq;
|
||||
if (__seen[_StrongEq])
|
||||
return _StrongEq;
|
||||
if (__seen[_PartialOrd])
|
||||
return _PartialOrd;
|
||||
if (__seen[_WeakOrd])
|
||||
return _WeakOrd;
|
||||
return _StrongOrd;
|
||||
}
|
||||
|
||||
template <class ..._Ts>
|
||||
constexpr auto __get_comp_type() {
|
||||
using _CCC = _ClassifyCompCategory;
|
||||
constexpr array<_CCC, sizeof...(_Ts)> __type_kinds{{__comp_detail::__type_to_enum<_Ts>()...}};
|
||||
constexpr _CCC _Cat = sizeof...(_Ts) == 0 ? _StrongOrd
|
||||
: __compute_comp_type(__type_kinds);
|
||||
if constexpr (_Cat == _None)
|
||||
return void();
|
||||
else if constexpr (_Cat == _WeakEq)
|
||||
return weak_equality::equivalent;
|
||||
else if constexpr (_Cat == _StrongEq)
|
||||
return strong_equality::equivalent;
|
||||
else if constexpr (_Cat == _PartialOrd)
|
||||
return partial_ordering::equivalent;
|
||||
else if constexpr (_Cat == _WeakOrd)
|
||||
return weak_ordering::equivalent;
|
||||
else if constexpr (_Cat == _StrongOrd)
|
||||
return strong_ordering::equivalent;
|
||||
else
|
||||
static_assert(_Cat != _Cat, "unhandled case");
|
||||
}
|
||||
} // namespace __comp_detail
|
||||
|
||||
// [cmp.common], common comparison category type
|
||||
template<class... _Ts>
|
||||
struct _LIBCPP_TEMPLATE_VIS common_comparison_category {
|
||||
using type = decltype(__comp_detail::__get_comp_type<_Ts...>());
|
||||
};
|
||||
|
||||
template<class... _Ts>
|
||||
using common_comparison_category_t = typename common_comparison_category<_Ts...>::type;
|
||||
|
||||
// [cmp.alg], comparison algorithms
|
||||
// TODO: unimplemented
|
||||
template<class _Tp> constexpr strong_ordering strong_order(const _Tp& __lhs, const _Tp& __rhs);
|
||||
template<class _Tp> constexpr weak_ordering weak_order(const _Tp& __lhs, const _Tp& __rhs);
|
||||
template<class _Tp> constexpr partial_ordering partial_order(const _Tp& __lhs, const _Tp& __rhs);
|
||||
template<class _Tp> constexpr strong_equality strong_equal(const _Tp& __lhs, const _Tp& __rhs);
|
||||
template<class _Tp> constexpr weak_equality weak_equal(const _Tp& __lhs, const _Tp& __rhs);
|
||||
|
||||
#endif // _LIBCPP_STD_VER > 17
|
||||
|
||||
_LIBCPP_END_NAMESPACE_STD
|
||||
|
||||
#endif // _LIBCPP_COMPARE
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue