On Thu Feb 24 14:55:06 2011, MIKER wrote:
Show quoted text> On Thu Feb 24 13:24:07 2011, jploski wrote:
> > The function ->num() seems to work incorrectly for IPv6 networks.
> > For
> > example, NetAddr::IP->new('f::', 92)->num() and
> > NetAddr::IP->new('f::',
> > 93)->num() both return 4294967294 on a 32-bit system.
>
> NetAddr::IP returns 4294967293 as a maximum number
> # returns 1 for /32 /128, 0 for /31 /127 else n-2 up to 2**32
> # number of usable IP's === number of ip's less broadcast
> and network addys
>
> The authors collectively are reviewing this to see if it is
> the correct
> response for all cases. Either way we will update the documentation
> accordingly.
>
> Best regards,
> Michael
>
v4.041 uploaded to CPAN
NetAddr::IP response for ->num($IP) updated to return an integer numeric
"string" for the number of usable addresses in a net.
NOTE: to perform operations on integer numbers larger than 2**32 on 32
bit platforms or 2**64 on 64 bit platforms requires the user to load a
module that will handle these numbers (i.e. Math::BigInt, etc...).
NetAddr::IP DOES NOT REQUIRE THESE MODULES and will always return the
appropriate numeric value as a text string. Perl is happy with that
representation as either a number or text. It is up to the user to deal
with it as they see fit for further numeric operations.
On a 32 bit platform, numbers up to "about" 2**49 can be represented in
perl without loss of resolution due to being handled internally as a
float. User beware.
RT for rt.cpan.org