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Re: Binary heap implementation.

by jeffa (Bishop)
on Jul 29, 2013 at 22:53 UTC ( #1046928=note: print w/replies, xml ) Need Help??

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[ovedpo15]: If I use "unless(opendir(my $dir, $test_dir))" why does it give me error "Global symbol "$dir" requires explicit package name at" if I used "my"? If I use my $dir before the opendir it works.. but why?

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