On Fri, 25 Mar 2022 at 17:42, Alvaro Herrera <alvherre@alvh.no-ip.org> wrote:
> On 2022-Mar-24, Japin Li wrote:
>
>> Thanks for your detail explaination. I find bottomup_sort_and_shrink_cmp()
>> has smilar code
>
> ... except that bottomup_sort_and_shrink_cmp never handles the case of
> the two structs being exactly identical, so I don't think this is a
> great counter-example.
>
>> IIUC, the last statement is used to keep the compiler quiet. However,
>> it doesn't exist in LWLockAttemptLock(). Why?
>
> What I do care about is the fact that LWLockAttemptLock does compile
> silently everywhere without a final "return dummy_value" statement.
I'm just a bit confused about this.
> I
> don't have to build a theory for why the other function has a statement
> that may or may not be actually doing anything.
Anyway, thanks for your explaination!
--
Regrads,
Japin Li.
ChengDu WenWu Information Technology Co.,Ltd.