implementing tr() results in exception?

[SPlatten]

Today I've been through a project replacing instances of "some text" with tr("some text"), the project builds with no warnings and no errors, however when I launch in the debugger I get an exception instantly:

Debugger encountered an exception: Exception at 0x6a432132, code: 0xc0000005: read access at 0x0, flags0x0 (first chance)

Execution is halted on Q_OBJECT below:

class SendRDF : public QMainWindow {
Q_OBJECT

No other changes have been performed.

[KroMignon]

@SPlatten said in implementing tr() results in exception?:

In the class where the exception is raised there two statics initialisated:
Could this be the cause?

Yes, this is probably the error source.
This is will done before Q(Core|Gui)Application has been initialized, so there is not translator available.
You cannot do this like this, you have to initialize the static members after QApplication has been initialized.

[jsulm]

@SPlatten Did you try complete clean rebuild?

[SPlatten]

@jsulm , Yes, that was the first thing I tried, I'm reading through:
https://doc.qt.io/qt-5/i18n-source-translation.html

Not sure if I have jumped the gun in building before the implementation is complete? I just tried to include:

Q_DECLARE_TR_FUNCTIONS(SendRDF)

It has a red underline, not sure if its available in Qt 5.9.2 ?

In the class where the exception is raised there two statics initialisated:

QString SendRDF::msstrAbort(tr("&Abort"));
QString SendRDF::msstrTransferComplete(tr("&Transfer Complete"));

Could this be the cause?

[jsulm]

@SPlatten said in implementing tr() results in exception?:

not sure if its available in Qt 5.9.2 ?

The compiler would break with an error if the macro would not be defined.

[KroMignon]

@SPlatten said in implementing tr() results in exception?:

Q_DECLARE_TR_FUNCTIONS(SendRDF)

Why do you use this?
SendRDF::tr() should be enough.

[SPlatten]

@jsulm , edited original post whilst you were posting.

[SPlatten]

@KroMignon , I don't it was something I was investigating after getting the error and reading the documentation.

[KroMignon]

@SPlatten said in implementing tr() results in exception?:

In the class where the exception is raised there two statics initialisated:
Could this be the cause?

Yes, this is probably the error source.
This is will done before Q(Core|Gui)Application has been initialized, so there is not translator available.
You cannot do this like this, you have to initialize the static members after QApplication has been initialized.

[SPlatten]

@KroMignon , thank you, that makes sense.