Seems like a good solution for my needs, but how do I use it in a perl
program instead of an inline command?
For example, if I try to set a variable with such a value:
$a = (1<<$Config{ivsize}*8-1)-1;
I get an error "Global symbol "%Config" requires explicit package name
at"
Thanks,
Alon
On Tue, 2005-12-27 at 10:51 -0200, Adriano Ferreira wrote:
> On 12/27/05, Alon Marx <[EMAIL PROTECTED]> wrote:
> > Is there a constant or a definition for a maximum number in perl? And
> > the same question for a minimum value?
>
> This may work for you
>
> the biggest unsigned integer
>
> $ perl -e 'print ~0'
> 18446744073709551615 # 64-bit integers
>
> the maximum signed integer
>
> $ perl -MConfig -e 'print( (1<<$Config{ivsize}*8-1)-1 )'
> 9223372036854775807
>
> the minimum signed integer
>
> $ perl -MConfig -e 'print -(1<<$Config{ivsize}*8-1)'
> -9223372036854775808
>
> I am not sure how general these expressions are. The illustrated
> values are for 64bit integers.
>
> Adriano.
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