function test(c)
  return("works"+c);
endfunction

function copy(c)
  print(c.call("copy"));
endfunction

program t()
var f:=@test;
var res:=f.call("direct");
copy(f);
print("res "+res);
print(@test);
copy(@test);

if (f)
  print("error");
else
  print("funcref is always false");
endif

// should be packet to uninit
print(pack(f));
print(unpack(pack(f)));
endprogram