On Jul 13, 2007, at 12:13 PM, Perrin Harkins wrote:
On 7/13/07, J. Shirley <[EMAIL PROTECTED]> wrote:
As anecdotal evidence to its insidious behavior, I've personally been
involved in a 5 man debugging effort that took 13 days (not full
days,
but probably an average of 3-4 hours a day * 5 people * 13 days) to
finally find the bug. Which was simply "my $foo = $bar if $baz;"
The reason why it was so hard to track down was because ot he
wonderful undefined behavior.
I had a similar experience, which is why I always mention when I see
it in other people's code now. It's a real problem and very hard to
track down if you haven't heard of it before.
I have the same experience every few years, and I've never been able
to understand why this can't simply be detected and at least flagged
as an error or warning in the Perl compiler. Does anyone know?
It's one of the few things about Perl that gets me angry. :)
Jon
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