27          y_registers/1,user_predef/1,scan_f/1,cafu/1,
53        cafu,
489 cafu(_Config) ->  function
490     error = cafu(<<42:32>>, -1, 0, {utf32,big}),
491     error = cafu(<<42:32>>, 10, 0, {utf32,big}),
492     error = cafu(<<42:32>>, -1, 0, {utf32,little}),
495 cafu(<<_/big-utf32,Rest/binary>>, N, Count, {utf32,big}) when N < 0 ->  function
496     cafu(Rest, -1, Count+1, {utf32,big});
497 cafu(<<_/big-utf32,Rest/binary>>, N, Count, {utf32,big}) ->  function
498     cafu(Rest, N-1, Count+1, {utf32,big});
499 cafu(<<_/little-utf32,Rest/binary>>, N, Count, {utf32,little}) when N < 0 ->  function
500     cafu(Rest, -1, Count+1, {utf32,little});
501 cafu(_, _, _, _) ->  function