QB64-PE/internal/source/ret135.txt

if (next_return_point){
next_return_point--;
switch(return_point[next_return_point]){
case 0:
error(3);
break;
case 124:
goto RETURN_124;
break;
case 125:
goto RETURN_125;
break;
case 126:
goto RETURN_126;
break;
}
}
error(3);