if (next_return_point){
next_return_point--;
switch(return_point[next_return_point]){
case 0:
error(3);
break;
case 14:
goto RETURN_14;
break;
case 15:
goto RETURN_15;
break;
case 16:
goto RETURN_16;
break;
case 17:
goto RETURN_17;
break;
}
}
error(3);
