Re: accessing arrays in a different sub-routine

From: A. Sinan Unur (1usa_at_llenroc.ude.invalid)
Date: 03/29/05 

Date: Mon, 28 Mar 2005 23:05:53 GMT

"erik" <ewitkop90@hotmail.com> wrote in news:1112049496.433969.94040
@g14g2000cwa.googlegroups.com:

> I just read that, thanks.

Please quote an appropriate amount of context when replying.

> That sheds some light. So basically with my
> example above, and due to it's dynamic nature, the only way I can get
> this working is a sub-function within a subfunction. I really didn't
> want to do that, but I take it I have no choice.

You lost me here.

Here is a simple example of what you can do:

#! /usr/bin/perl

my $files = read_files_in_current_dir();

$files or die "No files in current directory\n";

my_print($files);

sub read_files_in_current_dir {
    opendir my $dir, '.'
        or die "Cannot open current directory: $!";
    [ grep { -f } readdir $dir ];
}

sub my_print {
    print "$_\n" for sort @{ shift() };
}

__END__
    
The first subroutine you call generates the array you want, and returns
a reference to it. Then, you pass that reference to other subroutines
that work on the array.

No need for nested subroutines.

> BTW, what was wrong with the name that I gave my array
> @bandwidth_array? You lost me on that one.

For me, the '@' in front of the name already signifies that the variable
is an array, why replicate that information?

Sinan

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