Help with deprecated code

leinad

Hi,

I had this code working fine in 5.12.4 but when I upgraded to 5.15, I now get warnings on this deprecated code. Any ideas how to fix it?

        std::sort(list.begin(), list.end(),[column,order](const QList<QVariant>list, const QList<QVariant>list1)->bool
    
        {
    
            const auto aV = list.at(column);  
            const auto bV = list1.at(column);
    
            if(order == Qt::AscendingOrder)
    
            return aV == bV ? list.at(1) < list1.at(1) : aV < bV;
return aV == bV ? list.at(1) > list1.at(1) : aV > bV;
    });

leinad

Sorry, I for got to add that these lines are deprecated:
return aV == bV ? list.at(1) < list1.at(1) : aV < bV; //qt does not like '<'
return aV == bV ? list.at(1) > list1.at(1) : aV > bV; //qt does not like '>'

JonB

@leinad
bool QVariant::operator<(const QVariant &v) const is deprecated as per https://doc.qt.io/qt-5/qvariant-obsolete.html#operator-lt.

VRonin

basically you need to convert them into the underlying type before comparing them

leinad

Yes, but would you know how to fix this particular issue?

leinad

OK, I see. I converted to QString which seems to fix the error.

Solved Help with deprecated code