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Re: perldoc -f fileno

by imp (Priest)
on May 24, 2007 at 03:58 UTC ( #617160=note: print w/ replies, xml ) Need Help??


in reply to perldoc -f fileno

You can open a filehandle that uses a scalar reference as the data source, like this:

use strict; use warnings; my $data = "a\nb\n"; open my $fh, '<', \$data; my $fileno = fileno $fh; printf "fileno: %s\n", defined $fileno ? $fileno : '(undef)'; print for <$fh>; close $fh; $fileno = fileno $fh; printf "fileno: %s\n", defined $fileno ? $fileno : '(undef)';


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