QB64-PE/internal/source/ret174.txt

if (next_return_point){
next_return_point--;
switch(return_point[next_return_point]){
case 0:
error(3);
break;
case 151:
goto RETURN_151;
break;
case 152:
goto RETURN_152;
break;
case 153:
goto RETURN_153;
break;
}
}
error(3);