mirror of
https://github.com/NohamR/RMHook-Win.git
synced 2026-05-25 19:59:46 +00:00
124 lines
4.5 KiB
C++
124 lines
4.5 KiB
C++
// Copyright (C) 2020 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
|
|
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
|
|
|
|
#ifndef QCOMPARE_H
|
|
#define QCOMPARE_H
|
|
|
|
#if 0
|
|
#pragma qt_class(QtCompare)
|
|
#endif
|
|
|
|
#include <QtCore/qglobal.h>
|
|
#include <QtCore/qcompare_impl.h>
|
|
|
|
QT_BEGIN_NAMESPACE
|
|
|
|
namespace QtPrivate {
|
|
using CompareUnderlyingType = qint8;
|
|
|
|
// [cmp.categories.pre] / 1
|
|
enum class Ordering : CompareUnderlyingType
|
|
{
|
|
Equal = 0,
|
|
Equivalent = Equal,
|
|
Less = -1,
|
|
Greater = 1
|
|
};
|
|
|
|
enum class Uncomparable : CompareUnderlyingType
|
|
{
|
|
Unordered = -127
|
|
};
|
|
|
|
} // namespace QtPrivate
|
|
|
|
// [cmp.partialord]
|
|
class QPartialOrdering
|
|
{
|
|
public:
|
|
static const QPartialOrdering Less;
|
|
static const QPartialOrdering Equivalent;
|
|
static const QPartialOrdering Greater;
|
|
static const QPartialOrdering Unordered;
|
|
|
|
friend constexpr bool operator==(QPartialOrdering lhs,
|
|
QtPrivate::CompareAgainstLiteralZero) noexcept
|
|
{ return lhs.isOrdered() && lhs.m_order == 0; }
|
|
|
|
friend constexpr bool operator!=(QPartialOrdering lhs,
|
|
QtPrivate::CompareAgainstLiteralZero) noexcept
|
|
{ return lhs.isOrdered() && lhs.m_order != 0; }
|
|
|
|
friend constexpr bool operator< (QPartialOrdering lhs,
|
|
QtPrivate::CompareAgainstLiteralZero) noexcept
|
|
{ return lhs.isOrdered() && lhs.m_order < 0; }
|
|
|
|
friend constexpr bool operator<=(QPartialOrdering lhs,
|
|
QtPrivate::CompareAgainstLiteralZero) noexcept
|
|
{ return lhs.isOrdered() && lhs.m_order <= 0; }
|
|
|
|
friend constexpr bool operator> (QPartialOrdering lhs,
|
|
QtPrivate::CompareAgainstLiteralZero) noexcept
|
|
{ return lhs.isOrdered() && lhs.m_order > 0; }
|
|
|
|
friend constexpr bool operator>=(QPartialOrdering lhs,
|
|
QtPrivate::CompareAgainstLiteralZero) noexcept
|
|
{ return lhs.isOrdered() && lhs.m_order >= 0; }
|
|
|
|
|
|
friend constexpr bool operator==(QtPrivate::CompareAgainstLiteralZero,
|
|
QPartialOrdering rhs) noexcept
|
|
{ return rhs.isOrdered() && 0 == rhs.m_order; }
|
|
|
|
friend constexpr bool operator!=(QtPrivate::CompareAgainstLiteralZero,
|
|
QPartialOrdering rhs) noexcept
|
|
{ return rhs.isOrdered() && 0 != rhs.m_order; }
|
|
|
|
friend constexpr bool operator< (QtPrivate::CompareAgainstLiteralZero,
|
|
QPartialOrdering rhs) noexcept
|
|
{ return rhs.isOrdered() && 0 < rhs.m_order; }
|
|
|
|
friend constexpr bool operator<=(QtPrivate::CompareAgainstLiteralZero,
|
|
QPartialOrdering rhs) noexcept
|
|
{ return rhs.isOrdered() && 0 <= rhs.m_order; }
|
|
|
|
friend constexpr bool operator> (QtPrivate::CompareAgainstLiteralZero,
|
|
QPartialOrdering rhs) noexcept
|
|
{ return rhs.isOrdered() && 0 > rhs.m_order; }
|
|
|
|
friend constexpr bool operator>=(QtPrivate::CompareAgainstLiteralZero,
|
|
QPartialOrdering rhs) noexcept
|
|
{ return rhs.isOrdered() && 0 >= rhs.m_order; }
|
|
|
|
|
|
friend constexpr bool operator==(QPartialOrdering lhs, QPartialOrdering rhs) noexcept
|
|
{ return lhs.m_order == rhs.m_order; }
|
|
|
|
friend constexpr bool operator!=(QPartialOrdering lhs, QPartialOrdering rhs) noexcept
|
|
{ return lhs.m_order != rhs.m_order; }
|
|
|
|
private:
|
|
constexpr explicit QPartialOrdering(QtPrivate::Ordering order) noexcept
|
|
: m_order(static_cast<QtPrivate::CompareUnderlyingType>(order))
|
|
{}
|
|
constexpr explicit QPartialOrdering(QtPrivate::Uncomparable order) noexcept
|
|
: m_order(static_cast<QtPrivate::CompareUnderlyingType>(order))
|
|
{}
|
|
|
|
// instead of the exposition only is_ordered member in [cmp.partialord],
|
|
// use a private function
|
|
constexpr bool isOrdered() noexcept
|
|
{ return m_order != static_cast<QtPrivate::CompareUnderlyingType>(QtPrivate::Uncomparable::Unordered); }
|
|
|
|
QtPrivate::CompareUnderlyingType m_order;
|
|
};
|
|
|
|
inline constexpr QPartialOrdering QPartialOrdering::Less(QtPrivate::Ordering::Less);
|
|
inline constexpr QPartialOrdering QPartialOrdering::Equivalent(QtPrivate::Ordering::Equivalent);
|
|
inline constexpr QPartialOrdering QPartialOrdering::Greater(QtPrivate::Ordering::Greater);
|
|
inline constexpr QPartialOrdering QPartialOrdering::Unordered(QtPrivate::Uncomparable::Unordered);
|
|
|
|
QT_END_NAMESPACE
|
|
|
|
#endif // QCOMPARE_H
|