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Re: Refactoring: dumb or witty use of ternary operator?

by Abigail-II (Bishop)
on Jun 22, 2004 at 10:06 UTC ( #368656=note: print w/ replies, xml ) Need Help??


in reply to Re: Refactoring: dumb or witty use of ternary operator?
in thread Refactoring: dumb or witty use of ternary operator?

If the the value of $outhash{$str} is undefined, you'll get a warning about using an undefined value.
Are you sure about that? Can you show code giving the warning? If you can construct code that generates a warning when ++ is applied to an undefined value, make sure to report it as a bug, because that's not supposed to happen.
This would work equally well:
$outhash {$str} ||= 0; $outhash {$str} ++;
Yeah, but why bother? From the documentation about auto-increment and auto-decrement:
"undef" is always treated as numeric, and in particular is changed to 0 before incrementing (so that a post-increment of an undef value will return 0 rather than "undef").

Abigail


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Re^2: Refactoring: dumb or witty use of ternary operator?
by cLive ;-) (Parson) on Jun 22, 2004 at 17:54 UTC

    "Are you sure about that?".

    No, obviously, but my guess is that his colleague made the same assumption that I did :)

    cLive ;-)

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