in reply to Re: Sort multi-dimensional array based on dereferenced value - out of memory error
in thread Sort multi-dimensional array based on dereferenced value - out of memory error

Aha! Thanks to both of you (Anonymous Monk and moritz) for the clear explanation. Indeed, it works fine when not using $a and $b as indexes.

Additionally, I noticed that when running with -w, perl tells me exactly what I was doing wrong:

$ perl -w foo.pl
Use of reference "ARRAY(0x8153c28)" as array index at foo.pl line 21.
Out of memory!

Lesson learned!

  • Comment on Re^2: Sort multi-dimensional array based on dereferenced value - out of memory error

In Section Seekers of Perl Wisdom