in reply to Re^2: Is there a 64-bit hex()?
in thread Is there a 64-bit hex()?

If you get a different result on a different platform, assuming both perls are compiled with 64-bit integers you have discovered a currently unknown bug.

But you are likely to get a different result if you do the same with 32-bit integer perl.

The portability issue the warning warns about is the portability between 32-bit and 64-bit perls. (perls, not hardware).

In Section Seekers of Perl Wisdom