#!/usr/bin/perl
sub foo(\@\$) {
    warn "foo args: (".join(",",map{"'$_'"}@_).")\n";
    print "1st argument = $_[0]; content =("
         . join(',',map{"'$_'"} @{$_[0]}).")\n";
    print "2nd argument = $_[1]; content = '".${$_[1]}."'\n";
    my ($array,$scalar) = @_;
    push @$array, $$scalar;
    $$scalar = "blurf";
} 
my @ary = qw(foo bar baz);
my $foo = "blah";

foo(@ary,$foo);

print "ary: (@ary)\n";
print "foo: $foo\n";