QString and c++ unicode escapes

[gkroeger]

Excuse my ignorance, but I can't figure out what is up with the following:

@
QString string 1 = new QString(" \u0394");
@

and

@
QString string 2 = new QString(" ");
string2 += QChar(0x0394);
@

don't yield the same result. The latter is what I want (uppercase greek delta) but I can figure out what the first is doing?

Thanks
Glenn

[EDIT: code formatting, Volker]

[giesbert]

Hi,

the fact is trivial.
In the first case, you have an char* string which contains some bytes. this is different to utf16 (where the \oXXX makes sense). The string is converted to a QString by the loacle you use.

This worked:

@
QString string1(" \u0394");
QString string2(" ");
string2 += QChar(0x0394);
QString string3 = QString::fromWCharArray(L" \u0394");

label_1->setText(string1);
label_2->setText(string2);
label_3->setText(string3);

@

Label 2 and 3 show the correct sign.

[gkroeger]

Thanks Gerolf!

My brain wasn't working so well this morning. As you point out, what is happening is obvious since the compiler replaces the literals before QString sees them.