NumericBox unsafe double conversion

[Stephan Bergmann]

On 03/22/2013 02:50 PM, Zolnai Tamás wrote:
>  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.

Yes, letting the to<Integral> functions return zero in case of overflow, 
similarly to the case where "this string represents no number," would 
make a lot of sense.  Patches welcome.

Stephan