Being good users open-source of Qt, we're <https://github.com/Mudlet/Mudlet>
looking into our compatibility early on to help report any issues and we're
finding this compatibility code to be rather problematic from the developer
experience point of view:
QMap<QString, QList<QPointF>> customLines;
QMap<QString, QColor> customLinesColor;
// ...
#if (QT_VERSION >= QT_VERSION_CHECK(5, 14, 0))
auto customLineKeys = customLines.keys();
QSet<QString> missingKeys{customLineKeys.begin(), customLineKeys.end()};
if (!customLinesColor.isEmpty()) {
auto customLinesColorKeys = customLinesColor.keys();
QSet<QString> customLinesColorKeysSet{customLinesColorKeys.begin(),
customLinesColorKeys.end()};
missingKeys.subtract(customLinesColorKeysSet);
}
#else
QSet<QString>
missingKeys{customLines.keys().toSet().subtract(customLinesColor.keys().toSet())};
#endif
Are we doing it wrong or is this a regression in Qt? (QTBUG-83697
<https://bugreports.qt.io/browse/QTBUG-83697>)
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