qcompare.cpp

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// Copyright (C) 2020 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
// Copyright (C) 2023 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
#include "qcompare.h"
 
#ifdef __cpp_lib_bit_cast
#include <bit>
#endif
 
QT_BEGIN_NAMESPACE
 
#ifdef __cpp_lib_three_way_comparison
#ifdef __cpp_lib_bit_cast
#define CHECK(type, flag) \
    static_assert(std::bit_cast<Qt:: type ## _ordering>(std:: type ## _ordering:: flag) \
                  == Qt:: type ## _ordering :: flag); \
    static_assert(std::bit_cast<std:: type ## _ordering>(Qt:: type ## _ordering:: flag) \
                  == std:: type ## _ordering :: flag) \
    /* end */
CHECK(partial, unordered);
CHECK(partial, less);
CHECK(partial, greater);
CHECK(partial, equivalent);
CHECK(weak, less);
CHECK(weak, greater);
CHECK(weak, equivalent);
CHECK(strong, less);
CHECK(strong, greater);
CHECK(strong, equal);
CHECK(strong, equivalent);
#undef CHECK
#endif // __cpp_lib_bit_cast
#endif //__cpp_lib_three_way_comparison
 
 
 
 
QT_END_NAMESPACE