[Interest] string conversion to longlong error

[Calogero Mauceri]

Hi all,

I'm doing something really simple, but which is driving me crazy.

I'm reading a string from a file and converting it to a long long 
integer, but the conversion fails.
The code I'm running is as simple as this

     // this string is read from a file
     QString str("18446744073709551615");
     bool ok;
     qint64 value = str.toLongLong(&ok);    // Error

the number should be representable in 64 bit. Am I doing something wrong?

More hints, if I convert the number to unsigned long long integer then 
it works

      bool ok;
      quint64 value = str.toULongLong(&ok);    // OK

Similarly initializing the long long from the literal value is failing too

Q_INT64_C(18446744073709551615) ;      // Error, returns -1
Q_UINT64_C(18446744073709551615);    // OK

Thanks for your help!
     Calogero

-- 
Calogero Mauceri
Software Engineer

Applied Coherent Technology Corporation (ACT)
www.actgate.com