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#ifndef STD_COMPARE_H
#define STD_COMPARE_H
namespace std {
inline namespace __1 {
// exposition only
enum class _EqResult : unsigned char {
__zero = 0,
__equal = __zero,
__equiv = __equal,
__nonequal = 1,
__nonequiv = __nonequal
};
enum class _OrdResult : signed char {
__less = -1,
__greater = 1
};
enum class _NCmpResult : signed char {
__unordered = -127
};
struct _CmpUnspecifiedType;
using _CmpUnspecifiedParam = void (_CmpUnspecifiedType::*)();
class weak_equality {
constexpr explicit weak_equality(_EqResult __val) noexcept : __value_(__val) {}
public:
static const weak_equality equivalent;
static const weak_equality nonequivalent;
friend constexpr bool operator==(weak_equality __v, _CmpUnspecifiedParam) noexcept;
friend constexpr bool operator==(_CmpUnspecifiedParam, weak_equality __v) noexcept;
friend constexpr bool operator!=(weak_equality __v, _CmpUnspecifiedParam) noexcept;
friend constexpr bool operator!=(_CmpUnspecifiedParam, weak_equality __v) noexcept;
friend constexpr weak_equality operator<=>(weak_equality __v, _CmpUnspecifiedParam) noexcept;
friend constexpr weak_equality operator<=>(_CmpUnspecifiedParam, weak_equality __v) noexcept;
// test helper
constexpr bool test_eq(weak_equality const &other) const noexcept {
return __value_ == other.__value_;
}
private:
_EqResult __value_;
};
inline constexpr weak_equality weak_equality::equivalent(_EqResult::__equiv);
inline constexpr weak_equality weak_equality::nonequivalent(_EqResult::__nonequiv);
inline constexpr bool operator==(weak_equality __v, _CmpUnspecifiedParam) noexcept {
return __v.__value_ == _EqResult::__zero;
}
inline constexpr bool operator==(_CmpUnspecifiedParam, weak_equality __v) noexcept {
return __v.__value_ == _EqResult::__zero;
}
inline constexpr bool operator!=(weak_equality __v, _CmpUnspecifiedParam) noexcept {
return __v.__value_ != _EqResult::__zero;
}
inline constexpr bool operator!=(_CmpUnspecifiedParam, weak_equality __v) noexcept {
return __v.__value_ != _EqResult::__zero;
}
inline constexpr weak_equality operator<=>(weak_equality __v, _CmpUnspecifiedParam) noexcept {
return __v;
}
inline constexpr weak_equality operator<=>(_CmpUnspecifiedParam, weak_equality __v) noexcept {
return __v;
}
class strong_equality {
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
constexpr operator weak_equality() const noexcept {
return __value_ == _EqResult::__zero ? weak_equality::equivalent
: weak_equality::nonequivalent;
}
// comparisons
friend constexpr bool operator==(strong_equality __v, _CmpUnspecifiedParam) noexcept;
friend constexpr bool operator!=(strong_equality __v, _CmpUnspecifiedParam) noexcept;
friend constexpr bool operator==(_CmpUnspecifiedParam, strong_equality __v) noexcept;
friend constexpr bool operator!=(_CmpUnspecifiedParam, strong_equality __v) noexcept;
friend constexpr strong_equality operator<=>(strong_equality __v, _CmpUnspecifiedParam) noexcept;
friend constexpr strong_equality operator<=>(_CmpUnspecifiedParam, strong_equality __v) noexcept;
// test helper
constexpr bool test_eq(strong_equality const &other) const noexcept {
return __value_ == other.__value_;
}
private:
_EqResult __value_;
};
inline constexpr strong_equality strong_equality::equal(_EqResult::__equal);
inline constexpr strong_equality strong_equality::nonequal(_EqResult::__nonequal);
inline constexpr strong_equality strong_equality::equivalent(_EqResult::__equiv);
inline constexpr strong_equality strong_equality::nonequivalent(_EqResult::__nonequiv);
constexpr bool operator==(strong_equality __v, _CmpUnspecifiedParam) noexcept {
return __v.__value_ == _EqResult::__zero;
}
constexpr bool operator==(_CmpUnspecifiedParam, strong_equality __v) noexcept {
return __v.__value_ == _EqResult::__zero;
}
constexpr bool operator!=(strong_equality __v, _CmpUnspecifiedParam) noexcept {
return __v.__value_ != _EqResult::__zero;
}
constexpr bool operator!=(_CmpUnspecifiedParam, strong_equality __v) noexcept {
return __v.__value_ != _EqResult::__zero;
}
constexpr strong_equality operator<=>(strong_equality __v, _CmpUnspecifiedParam) noexcept {
return __v;
}
constexpr strong_equality operator<=>(_CmpUnspecifiedParam, strong_equality __v) noexcept {
return __v;
}
class partial_ordering {
using _ValueT = signed char;
explicit constexpr partial_ordering(_EqResult __v) noexcept
: __value_(_ValueT(__v)) {}
explicit constexpr partial_ordering(_OrdResult __v) noexcept
: __value_(_ValueT(__v)) {}
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
friend constexpr bool operator==(partial_ordering __v, _CmpUnspecifiedParam) noexcept;
friend constexpr bool operator!=(partial_ordering __v, _CmpUnspecifiedParam) noexcept;
friend constexpr bool operator<(partial_ordering __v, _CmpUnspecifiedParam) noexcept;
friend constexpr bool operator<=(partial_ordering __v, _CmpUnspecifiedParam) noexcept;
friend constexpr bool operator>(partial_ordering __v, _CmpUnspecifiedParam) noexcept;
friend constexpr bool operator>=(partial_ordering __v, _CmpUnspecifiedParam) noexcept;
friend constexpr bool operator==(_CmpUnspecifiedParam, partial_ordering __v) noexcept;
friend constexpr bool operator!=(_CmpUnspecifiedParam, partial_ordering __v) noexcept;
friend constexpr bool operator<(_CmpUnspecifiedParam, partial_ordering __v) noexcept;
friend constexpr bool operator<=(_CmpUnspecifiedParam, partial_ordering __v) noexcept;
friend constexpr bool operator>(_CmpUnspecifiedParam, partial_ordering __v) noexcept;
friend constexpr bool operator>=(_CmpUnspecifiedParam, partial_ordering __v) noexcept;
friend constexpr partial_ordering operator<=>(partial_ordering __v, _CmpUnspecifiedParam) noexcept;
friend constexpr partial_ordering operator<=>(_CmpUnspecifiedParam, partial_ordering __v) noexcept;
// test helper
constexpr bool test_eq(partial_ordering const &other) const noexcept {
return __value_ == other.__value_;
}
private:
_ValueT __value_;
};
inline constexpr partial_ordering partial_ordering::less(_OrdResult::__less);
inline constexpr partial_ordering partial_ordering::equivalent(_EqResult::__equiv);
inline constexpr partial_ordering partial_ordering::greater(_OrdResult::__greater);
inline constexpr partial_ordering partial_ordering::unordered(_NCmpResult ::__unordered);
constexpr bool operator==(partial_ordering __v, _CmpUnspecifiedParam) noexcept {
return __v.__is_ordered() && __v.__value_ == 0;
}
constexpr bool operator<(partial_ordering __v, _CmpUnspecifiedParam) noexcept {
return __v.__is_ordered() && __v.__value_ < 0;
}
constexpr bool operator<=(partial_ordering __v, _CmpUnspecifiedParam) noexcept {
return __v.__is_ordered() && __v.__value_ <= 0;
}
constexpr bool operator>(partial_ordering __v, _CmpUnspecifiedParam) noexcept {
return __v.__is_ordered() && __v.__value_ > 0;
}
constexpr bool operator>=(partial_ordering __v, _CmpUnspecifiedParam) noexcept {
return __v.__is_ordered() && __v.__value_ >= 0;
}
constexpr bool operator==(_CmpUnspecifiedParam, partial_ordering __v) noexcept {
return __v.__is_ordered() && 0 == __v.__value_;
}
constexpr bool operator<(_CmpUnspecifiedParam, partial_ordering __v) noexcept {
return __v.__is_ordered() && 0 < __v.__value_;
}
constexpr bool operator<=(_CmpUnspecifiedParam, partial_ordering __v) noexcept {
return __v.__is_ordered() && 0 <= __v.__value_;
}
constexpr bool operator>(_CmpUnspecifiedParam, partial_ordering __v) noexcept {
return __v.__is_ordered() && 0 > __v.__value_;
}
constexpr bool operator>=(_CmpUnspecifiedParam, partial_ordering __v) noexcept {
return __v.__is_ordered() && 0 >= __v.__value_;
}
constexpr bool operator!=(partial_ordering __v, _CmpUnspecifiedParam) noexcept {
return !__v.__is_ordered() || __v.__value_ != 0;
}
constexpr bool operator!=(_CmpUnspecifiedParam, partial_ordering __v) noexcept {
return !__v.__is_ordered() || __v.__value_ != 0;
}
constexpr partial_ordering operator<=>(partial_ordering __v, _CmpUnspecifiedParam) noexcept {
return __v;
}
constexpr partial_ordering operator<=>(_CmpUnspecifiedParam, partial_ordering __v) noexcept {
return __v < 0 ? partial_ordering::greater : (__v > 0 ? partial_ordering::less : __v);
}
class weak_ordering {
using _ValueT = signed char;
explicit constexpr weak_ordering(_EqResult __v) noexcept : __value_(_ValueT(__v)) {}
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
constexpr operator weak_equality() const noexcept {
return __value_ == 0 ? weak_equality::equivalent
: weak_equality::nonequivalent;
}
constexpr operator partial_ordering() const noexcept {
return __value_ == 0 ? partial_ordering::equivalent
: (__value_ < 0 ? partial_ordering::less : partial_ordering::greater);
}
// comparisons
friend constexpr bool operator==(weak_ordering __v, _CmpUnspecifiedParam) noexcept;
friend constexpr bool operator!=(weak_ordering __v, _CmpUnspecifiedParam) noexcept;
friend constexpr bool operator<(weak_ordering __v, _CmpUnspecifiedParam) noexcept;
friend constexpr bool operator<=(weak_ordering __v, _CmpUnspecifiedParam) noexcept;
friend constexpr bool operator>(weak_ordering __v, _CmpUnspecifiedParam) noexcept;
friend constexpr bool operator>=(weak_ordering __v, _CmpUnspecifiedParam) noexcept;
friend constexpr bool operator==(_CmpUnspecifiedParam, weak_ordering __v) noexcept;
friend constexpr bool operator!=(_CmpUnspecifiedParam, weak_ordering __v) noexcept;
friend constexpr bool operator<(_CmpUnspecifiedParam, weak_ordering __v) noexcept;
friend constexpr bool operator<=(_CmpUnspecifiedParam, weak_ordering __v) noexcept;
friend constexpr bool operator>(_CmpUnspecifiedParam, weak_ordering __v) noexcept;
friend constexpr bool operator>=(_CmpUnspecifiedParam, weak_ordering __v) noexcept;
friend constexpr weak_ordering operator<=>(weak_ordering __v, _CmpUnspecifiedParam) noexcept;
friend constexpr weak_ordering operator<=>(_CmpUnspecifiedParam, weak_ordering __v) noexcept;
// test helper
constexpr bool test_eq(weak_ordering const &other) const noexcept {
return __value_ == other.__value_;
}
private:
_ValueT __value_;
};
inline constexpr weak_ordering weak_ordering::less(_OrdResult::__less);
inline constexpr weak_ordering weak_ordering::equivalent(_EqResult::__equiv);
inline constexpr weak_ordering weak_ordering::greater(_OrdResult::__greater);
constexpr bool operator==(weak_ordering __v, _CmpUnspecifiedParam) noexcept {
return __v.__value_ == 0;
}
constexpr bool operator!=(weak_ordering __v, _CmpUnspecifiedParam) noexcept {
return __v.__value_ != 0;
}
constexpr bool operator<(weak_ordering __v, _CmpUnspecifiedParam) noexcept {
return __v.__value_ < 0;
}
constexpr bool operator<=(weak_ordering __v, _CmpUnspecifiedParam) noexcept {
return __v.__value_ <= 0;
}
constexpr bool operator>(weak_ordering __v, _CmpUnspecifiedParam) noexcept {
return __v.__value_ > 0;
}
constexpr bool operator>=(weak_ordering __v, _CmpUnspecifiedParam) noexcept {
return __v.__value_ >= 0;
}
constexpr bool operator==(_CmpUnspecifiedParam, weak_ordering __v) noexcept {
return 0 == __v.__value_;
}
constexpr bool operator!=(_CmpUnspecifiedParam, weak_ordering __v) noexcept {
return 0 != __v.__value_;
}
constexpr bool operator<(_CmpUnspecifiedParam, weak_ordering __v) noexcept {
return 0 < __v.__value_;
}
constexpr bool operator<=(_CmpUnspecifiedParam, weak_ordering __v) noexcept {
return 0 <= __v.__value_;
}
constexpr bool operator>(_CmpUnspecifiedParam, weak_ordering __v) noexcept {
return 0 > __v.__value_;
}
constexpr bool operator>=(_CmpUnspecifiedParam, weak_ordering __v) noexcept {
return 0 >= __v.__value_;
}
constexpr weak_ordering operator<=>(weak_ordering __v, _CmpUnspecifiedParam) noexcept {
return __v;
}
constexpr weak_ordering operator<=>(_CmpUnspecifiedParam, weak_ordering __v) noexcept {
return __v < 0 ? weak_ordering::greater : (__v > 0 ? weak_ordering::less : __v);
}
class strong_ordering {
using _ValueT = signed char;
explicit constexpr strong_ordering(_EqResult __v) noexcept : __value_(static_cast<signed char>(__v)) {}
explicit constexpr strong_ordering(_OrdResult __v) noexcept : __value_(static_cast<signed char>(__v)) {}
public:
static const strong_ordering less;
static const strong_ordering equal;
static const strong_ordering equivalent;
static const strong_ordering greater;
// conversions
constexpr operator weak_equality() const noexcept {
return __value_ == 0 ? weak_equality::equivalent
: weak_equality::nonequivalent;
}
constexpr operator strong_equality() const noexcept {
return __value_ == 0 ? strong_equality::equal
: strong_equality::nonequal;
}
constexpr operator partial_ordering() const noexcept {
return __value_ == 0 ? partial_ordering::equivalent
: (__value_ < 0 ? partial_ordering::less : partial_ordering::greater);
}
constexpr operator weak_ordering() const noexcept {
return __value_ == 0 ? weak_ordering::equivalent
: (__value_ < 0 ? weak_ordering::less : weak_ordering::greater);
}
// comparisons
friend constexpr bool operator==(strong_ordering __v, _CmpUnspecifiedParam) noexcept;
friend constexpr bool operator!=(strong_ordering __v, _CmpUnspecifiedParam) noexcept;
friend constexpr bool operator<(strong_ordering __v, _CmpUnspecifiedParam) noexcept;
friend constexpr bool operator<=(strong_ordering __v, _CmpUnspecifiedParam) noexcept;
friend constexpr bool operator>(strong_ordering __v, _CmpUnspecifiedParam) noexcept;
friend constexpr bool operator>=(strong_ordering __v, _CmpUnspecifiedParam) noexcept;
friend constexpr bool operator==(_CmpUnspecifiedParam, strong_ordering __v) noexcept;
friend constexpr bool operator!=(_CmpUnspecifiedParam, strong_ordering __v) noexcept;
friend constexpr bool operator<(_CmpUnspecifiedParam, strong_ordering __v) noexcept;
friend constexpr bool operator<=(_CmpUnspecifiedParam, strong_ordering __v) noexcept;
friend constexpr bool operator>(_CmpUnspecifiedParam, strong_ordering __v) noexcept;
friend constexpr bool operator>=(_CmpUnspecifiedParam, strong_ordering __v) noexcept;
friend constexpr strong_ordering operator<=>(strong_ordering __v, _CmpUnspecifiedParam) noexcept;
friend constexpr strong_ordering operator<=>(_CmpUnspecifiedParam, strong_ordering __v) noexcept;
// test helper
constexpr bool test_eq(strong_ordering const &other) const noexcept {
return __value_ == other.__value_;
}
private:
_ValueT __value_;
};
inline constexpr strong_ordering strong_ordering::less(_OrdResult::__less);
inline constexpr strong_ordering strong_ordering::equal(_EqResult::__equal);
inline constexpr strong_ordering strong_ordering::equivalent(_EqResult::__equiv);
inline constexpr strong_ordering strong_ordering::greater(_OrdResult::__greater);
constexpr bool operator==(strong_ordering __v, _CmpUnspecifiedParam) noexcept {
return __v.__value_ == 0;
}
constexpr bool operator!=(strong_ordering __v, _CmpUnspecifiedParam) noexcept {
return __v.__value_ != 0;
}
constexpr bool operator<(strong_ordering __v, _CmpUnspecifiedParam) noexcept {
return __v.__value_ < 0;
}
constexpr bool operator<=(strong_ordering __v, _CmpUnspecifiedParam) noexcept {
return __v.__value_ <= 0;
}
constexpr bool operator>(strong_ordering __v, _CmpUnspecifiedParam) noexcept {
return __v.__value_ > 0;
}
constexpr bool operator>=(strong_ordering __v, _CmpUnspecifiedParam) noexcept {
return __v.__value_ >= 0;
}
constexpr bool operator==(_CmpUnspecifiedParam, strong_ordering __v) noexcept {
return 0 == __v.__value_;
}
constexpr bool operator!=(_CmpUnspecifiedParam, strong_ordering __v) noexcept {
return 0 != __v.__value_;
}
constexpr bool operator<(_CmpUnspecifiedParam, strong_ordering __v) noexcept {
return 0 < __v.__value_;
}
constexpr bool operator<=(_CmpUnspecifiedParam, strong_ordering __v) noexcept {
return 0 <= __v.__value_;
}
constexpr bool operator>(_CmpUnspecifiedParam, strong_ordering __v) noexcept {
return 0 > __v.__value_;
}
constexpr bool operator>=(_CmpUnspecifiedParam, strong_ordering __v) noexcept {
return 0 >= __v.__value_;
}
constexpr strong_ordering operator<=>(strong_ordering __v, _CmpUnspecifiedParam) noexcept {
return __v;
}
constexpr strong_ordering operator<=>(_CmpUnspecifiedParam, strong_ordering __v) noexcept {
return __v < 0 ? strong_ordering::greater : (__v > 0 ? strong_ordering::less : __v);
}
// 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_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; }
constexpr bool is_gteq(partial_ordering __cmp) noexcept { return __cmp >= 0; }
} // namespace __1
} // end namespace std
#endif // STD_COMPARE_H
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