diff options
Diffstat (limited to 'src/corelib/kernel')
| -rw-r--r-- | src/corelib/kernel/qobject.cpp | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/corelib/kernel/qobject.cpp b/src/corelib/kernel/qobject.cpp index 4680742a3e..42c39f18e3 100644 --- a/src/corelib/kernel/qobject.cpp +++ b/src/corelib/kernel/qobject.cpp @@ -4338,6 +4338,12 @@ QDebug operator<<(QDebug dbg, const QObject *o) in a QVariant, you can convert them to strings. Likewise, passing them to QDebug will print out their names. + Mind that the enum values are stored as signed \c int in the meta object system. + Registering enumerations with values outside the range of values valid for \c int + will lead to overflows and potentially undefined behavior when accessing them through + the meta object system. QML, for example, does access registered enumerations through + the meta object system. + \sa {Qt's Property System} */ @@ -4389,6 +4395,12 @@ QDebug operator<<(QDebug dbg, const QObject *o) used in a QVariant, you can convert them to strings. Likewise, passing them to QDebug will print out their names. + Mind that the enum values are stored as signed \c int in the meta object system. + Registering enumerations with values outside the range of values valid for \c int + will lead to overflows and potentially undefined behavior when accessing them through + the meta object system. QML, for example, does access registered enumerations through + the meta object system. + \sa {Qt's Property System} */ |