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-rw-r--r--src/corelib/time/qtimezone.cpp14
1 files changed, 11 insertions, 3 deletions
diff --git a/src/corelib/time/qtimezone.cpp b/src/corelib/time/qtimezone.cpp
index 0309e43e52..3d451696a1 100644
--- a/src/corelib/time/qtimezone.cpp
+++ b/src/corelib/time/qtimezone.cpp
@@ -1,6 +1,6 @@
/****************************************************************************
**
-** Copyright (C) 2013 John Layt <jlayt@kde.org>
+** Copyright (C) 2020 John Layt <jlayt@kde.org>
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtCore module of the Qt Toolkit.
@@ -975,9 +975,15 @@ QList<QByteArray> QTimeZone::windowsIdToIanaIds(const QByteArray &windowsId,
}
#ifndef QT_NO_DATASTREAM
+// Invalid, as an IANA ID: too long, starts with - and has other invalid characters in it
+static inline QString invalidId() { return QStringLiteral("-No Time Zone Specified!"); }
+
QDataStream &operator<<(QDataStream &ds, const QTimeZone &tz)
{
- tz.d->serialize(ds);
+ if (tz.isValid())
+ tz.d->serialize(ds);
+ else
+ ds << invalidId();
return ds;
}
@@ -985,7 +991,9 @@ QDataStream &operator>>(QDataStream &ds, QTimeZone &tz)
{
QString ianaId;
ds >> ianaId;
- if (ianaId == QLatin1String("OffsetFromUtc")) {
+ if (ianaId == invalidId()) {
+ tz = QTimeZone();
+ } else if (ianaId == QLatin1String("OffsetFromUtc")) {
int utcOffset;
QString name;
QString abbreviation;