If I understand correctly, you want to pass $r[0] back from sub interface_control to its caller? One way is to pass in a variable reference:

my $r;
my $s = ...;

interface_control($s, \$r);

# use $r here
...

sub interface_control
{
    my ($s, $r_ref) = @_;
    my (@r, $v, @h);
    $s->get_handles(rtrs=>\@r, vars=>\$v, hosts=>\@h);
    $$r_ref = $r[0];    # dereference $r_ref and write to its referent
    ...

[download]

See perlreftut. (Or, of course, you could just return $r[0] at the end of the subroutine.)

Hope that helps,

Athanasius <°(((>< contra mundum Iustus alius egestas vitae, eros Piratica,

In reply to Re: Accessing single element without args by Athanasius
in thread Accesing single element without args by Anonymous Monk

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