qDebug() and long long int on WIN

[iw2lsi]

Hi all

I'm in trouble trying to print a long long int with qDebug...
it works fine on linux but on windows 7 + mingw "%lld" is not recognized and "%I64d" crash the application ...

anyone else is having this issue ?

thanks in advance for any hints

Giampaolo

BTW using printf("%I64d") instead of qDebug("%I64d") works.

[GreenScape]

why not use qDebug this way:

qDebug() << qint64(0x7FFFFFFFFFFFFFFF);

qDebug() << qint64(0x7FFFFFFFFFFFFFFF);

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???

[iw2lsi]

hi

this works... thanks

anyway... I was hoping qDebug() to be more portable... as streaming format insert spaces between items, auto cr/lf at the end etc etc...

Best Regards

Giampaolo

[ChrisW67]

Ultimately the qDebug(const char *fmt, ...) uses QString::sprintf():

The format string supports most of the conversion specifiers provided by printf() in the standard C++ library. It doesn't honor the length modifiers (e.g. h for short, ll for long long). If you need those, use the standard snprintf() function instead...

Also see: bug report

You can suppress spaces in the streamed version:

qDebug() << "1" << "2" << "3";
qDebug().nospace() << "1" << "2" << "3";

qDebug() << "1" << "2" << "3";
qDebug().nospace() << "1" << "2" << "3";

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QDebug is a debugging aid, not a pretty printer, but nothing stops you using QString and QString::arg() to build more complex output.