On 09/17/2013 10:54 AM, Tom Hacohen wrote:
> On 17/09/13 10:40, Stefan Schmidt wrote:
>> Hello.
>>
>> As you like to point out problems with mails. No need to CC me, I'm on
>> the list. :)
>>
>> I also know that thunderbird sucks at this but I'm able to do it. :)
> 
> I actually do it on purpose. By default thunderbird replies to list, I

Not mine.

> have to explicitly choose reply to all. I do that because that's how I'd 
> like to be treated as well. I'm replying to you in specific with 
> everyone to hear, hence you are in the "To" and everyone is in "cc".

Well, not everyone would like to be treated like you. :)

> It has the additional bonus, that for most people it gets to their inbox 
> instead of the ML dir, which is as expected (in my pov) when replying 
> directly.

Not happening here.

>>
>> On 09/17/2013 10:21 AM, Tom Hacohen wrote:
>>> On 17/09/13 08:30, Stefan Schmidt wrote:
>>>> Hello.
>>>>
>>>> On 09/17/2013 07:44 AM, Chris Michael - Enlightenment Git wrote:
>>>>> devilhorns pushed a commit to branch master.
>>>>>
>>>>> commit 64bc97c53c5c3772595f9d2321f9e19590d8a477
>>>>> Author: Chris Michael <cp.mich...@samsung.com>
>>>>> Date:   Mon Sep 16 11:40:30 2013 +0100
>>>>>
>>>>>        Remove __UNUSED__ from function declaration where parameter is
>>>>>        actually used.
>>>>
>>>> This brings an old topic back into my mind.
>>>>
>>>> Its not the first time we eagerly tagged parameters as unused because
>>>> gcc warned about it and later started to use them without removing the
>>>> unused label. This has the potential to screw us badly as it is up to
>>>> the compiler to decide what to do with the parameter here.
>>>
>>> I don't know much about the exact implementation details of GCC, but I
>>> find it very unlikely that GCC is allowed, or will ever actually do
>>> anything about a *used* variable that is marked as unused. That just
>>> sounds too crazy to be true. So I don't think we'll ever get screwed.
>>
>> I have in the back of my mind that we already screwed by this. I don't
>> have the details at hand so I can't proof it.
>>
>> If I ever run into this problem with efl I will bill you the number of
>> hours I had to work it out. Could easily be days for such a thing. :)
> 
> Well, both common-sense (according to David that might not apply to 
> gcc), and the gcc manual are on my side on this one.

Stay on your side.

>>>> Given how many callback and other signatures we have with user_data or
>>>> other unused parameters we end up with 3630 EINA_UNUSED and even 71
>>>> __UNUSED__ in efl alone. All with the potential to be used at some
> point
>>>> but forgotten to remove the label.
>>>
>>> Again, not really an issue.
>>>>
>>>> My proposal would be to use -Wno-unused-parameter in our CFLAGS to
>>>> disable this warning and remove all EINA_UNUSED and __UNUSED__ from
>>>> parameters.
>>>>
>>>> I know it has the downside that in the rare case where you add a
>>>> parameter to a signature yourself (read: not using an existing
> function
>>>> signature) you might add it and forgot to use it. Which will not
>>>> reported as warning in this case.
>>>>
>>>> In my opinion the risk is higher than the benefit here.
>>>
>>> I disagree. I find this warning very useful when prototyping and
>>> refactoring APIs (both internal and external). I would really hate
>>> losing that in a mess of warnings.
>>
>> You just nominated yourself for fixing warnings to not have a mess of
>> them. Congrats. :)
> 
> I used to do it a lot, and I'll do it still if I find anything obvious. 
> The problem is, I don't want to silence warnings, I want warnings to be 
> fixed. Usually, that means spending a lot of time on code you are not 
> familiar with (e.g the Evas_GL code).

Thanks. I know that. I digged through code I never wanted to see to make
a correct fix.

>>>> I expect people to have a different opinion on this and get really
> angry
>>>> if I just start to add the CFLAG and remove all EINA_UNSED from
>>>> parameter so I thought I bring it up here to get some opinions. We
>>>> normally have plenty of opinions around. :)
>>>
>>> I would definitely be angry. Not because I disagree with the whole
>>> motion, but because it's one of those things that should be discussed
>>> (so good job discussing).
>>>
>>>
>>> We are already quite good with that. We used to be a bit better a while
>>> back, unfortunately some people introduced new warnings. However, we
> are
>>> still good. I think it's well worth to maintain this.
>>
>> As written above you won the job taking an eye on this. :)
> 
> That's hardly an argument for or against anything.

What makes you think this is an argument? It is a statement I made
without arguing about the original problem anymore. You stated you want
to see them and I feel we see but don't fix them so you have won the job
doing it in my eyes.

>> I will put this into the shelve with things I gave up on for EFL.
>> Sitting next to a review-and-pull workflow, good commit messages and a
>> sane coding style.
> 
> I think you are meant to lock such things in the drawer, like laptops, 
> cellphones, your mouse and your desktop's hard-drive.

Nah, I have anice big shelf with looser trophies. Full of things I gave
up on. :)

regards
Stefan Schmidt


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