AuroraMiddleware/qt5base-lts
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Q_GLOBAL_STATIC: suppress warning about expressions in noexcept()

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We use a simple statement to try and mark the holder as noexcept and that
works for most cases (but not all). It triggers a warning when the
expression is complex, though, like this in qlocale.cpp:

Q_GLOBAL_STATIC_WITH_ARGS(QSharedDataPointer<QLocalePrivate>, defaultLocalePrivate,
                          (new QLocalePrivate(defaultData(), defaultIndex())))

Pick-to: 6.2
Change-Id: Iea05060bc2c046928536fffd16adf4be6126d039
Reviewed-by: Ievgenii Meshcheriakov <ievgenii.meshcheriakov@qt.io>
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
This commit is contained in:
Thiago Macieira 2021-10-14 10:08:58 -07:00
parent 8c2969ea86
commit e652fa4d3e
1 changed files with 4 additions and 1 deletions
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5
src/corelib/global/qglobalstatic.h
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@ -122,6 +122,8 @@ struct QGlobalStatic
};
#define Q_GLOBAL_STATIC_WITH_ARGS(TYPE, NAME, ARGS) \
QT_WARNING_PUSH \
QT_WARNING_DISABLE_CLANG("-Wunevaluated-expression") \
namespace { namespace Q_QGS_ ## NAME { \
typedef TYPE Type; \
QBasicAtomicInt guard = Q_BASIC_ATOMIC_INITIALIZER(QtGlobalStatic::Uninitialized); \
@ -129,7 +131,8 @@ struct QGlobalStatic
} } \
static QGlobalStatic<TYPE, \
Q_QGS_ ## NAME::innerFunction, \
Q_QGS_ ## NAME::guard> NAME;
Q_QGS_ ## NAME::guard> NAME; \
QT_WARNING_POP
#define Q_GLOBAL_STATIC(TYPE, NAME) \
Q_GLOBAL_STATIC_WITH_ARGS(TYPE, NAME, ())