Disable specific warning in Qt Creator

Donald Duck

Apparently the new version of Qt Creator checks for warnings while I'm writing the code. That's a nice feature, but I find some of the warnings more annoying than helpful. For example, one of the warnings I find most annoying is "enumeration values not handled in switch", since if I have a QMessageBox that only has 3 buttons it expects me to handle all 20 enumeration values even though I know that only 3 of those values are possible. For example I get a useless warning for the following code:

switch(QMessageBox::warning(this, "", "Do you want to save the file before leaving?", QMessageBox::Yes | QMessageBox::No | QMessageBox::Cancel)){
case QMessageBox::Yes:
    //Save and quit
    break;
case QMessageBox::Cancel:
    //Don't quit
    break;
case QMessageBox::No:
    //Quit
    break;
}

My question is how can I disable a certain type of warning in Qt Creator?

Donald Duck

I found the solution. It's in Options > C++ > Code Model > Manage..., then press the "Copy" button. Then in the Clang tab, there will be a text area. If you type -w in the text area, it disables all warnings. To keep some of the warnings enabled, see here for what to put in there.

mrjj

Just as a note
if you add default case, it stops warning.
...
default:
break;
}

casperbear

It looks like you can construct a -Wno-... parameter even if it's not mentioned in https://clang.llvm.org/docs/DiagnosticsReference.html
You can try to add -Wno-switch-enum in your specific case.