QLocale toCurrencyString ignores precision

JBES

Hi,

(QT 5.10.1 MSVC 2015 32 bit)

I'm not sure if I'm missing something here, but the results I get using the toCurrencyString overload with a double and precision completely ignore the precision that is set.

E.g. With the example below, from a double of 1234567.12 the result I would expect is €1,234,567 but the result I actually get (€1,234,567.12) always has a precision of 2.

QString szCurSym = QLocale("es_ES").currencySymbol();
double dblTestVal=1234567.12;
QString szResult=QLocale().toCurrencyString(dblTestVal,szCurSym,0); //precision ignored

Thanks in advance.

VRonin

That's because you are using the system locale (i.e. QLocale()) it is documented even if a bit obscure:
http://doc.qt.io/qt-5/qlocale.html#system

On Windows and Mac, this locale will use the decimal[...] formats specified in the system configuration panel.

QLocale(QLocale().language(),QLocale().country()).toCurrencyString(dblTestVal,szCurSym,0); will actually use the precision

JBES

@VRonin said in QLocale toCurrencyString ignores precision:

QLocale(QLocale().language(),QLocale().country()).toCurrencyString(dblTestVal,szCurSym,0);

Thanks, that works. You would think that specifically setting the precision would take precedence. Maybe it would be better worded as ... the locale will always use ...