use O qw' Deparse -p ';
print \&reference; # real ref
print \&call(1);  # ref to return value
print \( &call(1) ); # same as above, ref to return
print \( call(1) ); # same as above, ref to return
__END__
print((\&reference));
print(\(&call(1)));
print(\(&call(1)));
print(\(call(1)));
__DATA__