diff options
| author | Marc Mutz <marc.mutz@qt.io> | 2023-11-30 01:38:39 +0100 |
|---|---|---|
| committer | Ivan Solovev <ivan.solovev@qt.io> | 2023-12-07 23:36:15 +0100 |
| commit | c39fff0da59ac23a4b185aada4ee653f69a705d5 (patch) | |
| tree | 1058eac45d960bd7dc07ddd8690ad2429ceb65b5 /src/corelib/global/qcomparehelpers.h | |
| parent | ccd0dc7f6d820b85cff94b890ceb4c6ffd9ae9d1 (diff) | |
Add missing <=> 0 operator to Qt ordering types
It's required by the standard, see e.g. [1] and the eel.is links in
the code.
[ChangeLog][QtCore][QPartialOrdering] Added three-way comparison
operator (<=>) against literal zero, available when compiling in C++20
mode.
[1] https://en.cppreference.com/w/cpp/utility/compare/partial_ordering#Comparisons
Change-Id: I8a3b76661400930c6e247cf5b138ff52bf784395
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>
Diffstat (limited to 'src/corelib/global/qcomparehelpers.h')
| -rw-r--r-- | src/corelib/global/qcomparehelpers.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/corelib/global/qcomparehelpers.h b/src/corelib/global/qcomparehelpers.h index d7e007b8b0..0394703e17 100644 --- a/src/corelib/global/qcomparehelpers.h +++ b/src/corelib/global/qcomparehelpers.h @@ -27,6 +27,8 @@ QT_BEGIN_NAMESPACE +class QPartialOrdering; + namespace QtOrderingPrivate { #ifdef __cpp_lib_three_way_comparison @@ -44,6 +46,9 @@ QT_STD_MAP(weak) QT_STD_MAP(strong) #undef QT_STD_MAP +template <> struct StdOrdering<QPartialOrdering> : q20::type_identity<std::partial_ordering> {}; +template <> struct QtOrdering<QPartialOrdering> : q20::type_identity< Qt::partial_ordering> {}; + template <typename In> constexpr auto to_std(In in) noexcept -> typename QtOrderingPrivate::StdOrdering<In>::type { return in; } |