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Re: Re: opening a file destroys nulling entries in a list?!?!

by bobn (Chaplain)
on Aug 07, 2003 at 03:38 UTC ( #281728=note: print w/ replies, xml ) Need Help??


in reply to Re: opening a file destroys nulling entries in a list?!?!
in thread opening a file destroys nulling entries in a list?!?!

How come while(<IN>){}, but not for (@x) {}? why is while (<IN>) so special?

I love perl, but this scares the hell out of me.

--Bob Niederman, http://bob-n.com


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Re: Re: Re: opening a file destroys nulling entries in a list?!?!
by bobn (Chaplain) on Aug 07, 2003 at 03:45 UTC

    Nevermend. I think I get it - someone else posted that while(<>){} is the same as while($_=<>){} - it does an assignment to $_ and that's what does the damage.

    Somehwere, I think I remember someone (Tom Christiansen, I think) saying to always localize $_ in subroutines. Now I know why.

    --Bob Niederman, http://bob-n.com

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