2013/3/22 Stephan Bergmann <sbergman@redhat.com>
On 03/22/2013 11:44 AM, Zolnai Tamás wrote:
Otherwise in ImplNumericGetValue() the problem of overflow/underflow can
be avoid with these lines
sal_Int64 nValue = aStr.toInt64()
if( OUString::valueOf(nValue) != aStr )
{
if( bNegative )
rValue = SAL_MIN_INT64;
else
rValue = SAL_MAX_INT64;
return sal_True;
}
...but only if aStr is known to be in canonical form, esp. neither
contains minus zero nor contains excessive leading zero digits. None of
that is guaranteed for ImplNumericGetValue in its current form (and also
consider nDecDigits > 0, where input rStr="0" and nDecDigits=2, say, would
lead to aStr="000" and the above comparison erroneously failing).
Oh, that's true. Thanks. I extend the check to take notice of these two
things.
From that matter, why is that the toInt64() function doesn't pay attention
on overflow/underflow? Maybe it would simpler to handle these "flows" in
that function.
Regards,
Tamás
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