qb64/internal/source/ret169.txt

if (next_return_point){
next_return_point--;
switch(return_point[next_return_point]){
case 0:
error(3);
break;
case 66:
goto RETURN_66;
break;
case 67:
goto RETURN_67;
break;
case 68:
goto RETURN_68;
break;
}
}
error(3);