require "./test.pl";
}
-plan(tests => 32);
+plan(tests => 33);
sub f($$_) { my $x = shift; is("@_", $x) }
sub opt ($;_) { is($_[0], "seen"); ok(!defined $_[1], "; has precedence over _") }
opt("seen");
+
+sub unop (_) { is($_[0],11) }
+unop 11, 22; # takes only the first parameter into account