http://www.perlmonks.org?node_id=1039219


in reply to substr outside of string? (Updated: Fixed in later builds.)

C:\>perl -E "use warnings;$a = chr(0); $a x= 2**31;
substr( $a, 0, 2**16 ) =~ tr[\0][\1];
substr( $a, 2**16, 2**16 ) =~ tr[\0][\1];"
substr outside of string at -e line 1.
Use of uninitialized value in transliteration (tr///) at -e line 1.

[download]
... and, neither "uninit" nor "outside string" appears for any value less than $a x= 2**31 with AS 5.16.

If you didn't program your executable by toggling in binary, it wasn't really programming!

In Section Seekers of Perl Wisdom