StandardException what() returns 'Unknown exception'

[amiart]

The StandardException, SqlException etc. classes inherit from std::exception, but don't return correct exception message when using what().

try
{
    throw StandardException("Something wrong happened");
}
catch (std::exception &e)
{
    qDebug(e.what());   // prints 'Unknown exception'
}

Config:
TreeFrog 1.21.0
Windows 10
Qt 5.9.4, MSVC 2015 x86

[amiart]

Hi, I see you modified a bit the message displayed by the what().
That's fine, but please note that in src/tfexception.h line 16:

whatmsg = className().toLocal8Bit() + ": ";

you are calling virtual function className() in TfException constructor.
This will not work as you expect, see:
https://stackoverflow.com/questions/962132/calling-virtual-functions-inside-constructors