With the beginning of Qt5 string literals are assumed to be utf8 encoded (see the QString constructor from const char *). So I have converted my sourcecode to utf8.

But yet I get the wrong output if I print a string literal onto a QTextStream. The QTextStream output operator interprets const char * always as ISO-8859-1 encoded (see documentation). This is inconsistent. I have to encode string literals as utf8 if I use them to initialize a QString and as latin1 if I use them for output.

I also cannot change the output-operator of QTextStream because it is not virtual. The only solution is to convert every string explicitly into a QString via QString::fromUtf8. (I have to do this for thousends of strings).

Please use the same encoding for string literals in QString and QTextStream or add a method to change the default for QTextStream.