nice. must remember that one. :)
am i right in thinking that to do the below without goto would be
difficult to do legibly?
ie goto enhances readibility/structure of this?
On Wed, 21 Jun 2000, Mark Fallon wrote:
> Hi,
>> Another way goto's are used in the kernel to handle errors is
> when more than one resource is needed e.g:
>> int some_kernel_func(){
> if (get_res1() != 0){
> err = ERRRES1;
> goto err_exit;
> }
> if (get_res2() != 0){
> err = ERRRES2;
> goto err_exit_res1;
> }
> if (get_res3() != 0){
> err = ERRRES3;
> goto err_exit_res2;
> }
>>> ...
>> Do something interesting (TM)
>>> ....
>> err = SUCCESS;
> release_res3();
>> err_exit_res2:
> release_res2();
>> err_exit_res1:
> release_res1();
>> err_exit:
> return(err);
> }
>>>
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