Re: Opening multiple files simultaneously

in reply to Opening multiple files simultaneously

The "open $scalar" idiom takes an undefined scalar and gives it a value. That value is a particular filehandle. If you then open the same filehandle again, it closes the old file.

Try this.

sub open_new {
    my ( $filename ) = @_;

    open my $fh, '<', $filename
        or die "Can't read '$filename': $!";

    return $fh;
}

push @filestack, open_new( 'test1.txt' );
push @filestack, open_new( 'test2.txt' );
[download]

Inside open_new, there's a new $fh containing undef every time.

Comment on Re: Opening multiple files simultaneously Select or Download Code

Replies are listed 'Best First'.
Re^2: Opening multiple files simultaneously by chrishowe (Acolyte) on Mar 31, 2009 at 15:42 UTC
Superb, cheers :-)	[reply]

In Section Seekers of Perl Wisdom