OK, probably not "ever", but definitely odd. Try and replicate this:
Sort subroutine didn't return a numeric value at /path/to/Module.pm line 92
And line 92 is:
my @sorted = sort { $b->[2] <=> $a->[2] } @probs;
(i.e. it's part of what almost looks like a long-hand Schwartzian transform).
Nobody on #london.pm could replicate the error message, although admittedly we didn't try very long.
I got this error emailed to me automatically from our scanning system, which sends me an email when an exception occurs. I received 1 only, out of about a billion ore more emails processed.
My theory is this is just cosmic rays. But it's certainly most odd looking.
Answer
rafael on 2003-07-08T16:04:16
$ perl -e '@x=sort{$a->[2]<=>$b->[2]}[0,0,0e9999],[0,0,0]'
That's because <=> returns undef when it encounters NaN.
