> They are _not_ meant to reopen the floor for anyone who already voiced their 
> opinion on the original proposal simply to restate their opposition to 
> particular changes.


Yes, Xiaodi I understand you are trying to help, but I find that sometimes you 
do talk down to other posters a bit vocally policing what should or not be said.

Sent from my iPhone

> On 21 Jul 2017, at 21:04, Xiaodi Wu via swift-evolution 
> <[email protected]> wrote:
> 
> Over the last months, I started two threads to discuss revisions to SE-0104; 
> these received essentially no reply. I’m quite sure others have touched on 
> these topics too. This is a thread to formally _review_ certain changes, not 
> a thread to “talk about” revisions generally.
> 
> With respect to the specific issues raised: revisions are opportunities, as 
> was well said, to apply new insights gained from experience. They are _not_ 
> meant to reopen the floor for anyone who already voiced their opinion on the 
> original proposal simply to restate their opposition to particular changes. 
> While every_one_ should certainly be welcomed to the community, that does not 
> mean that every kind of participation should be. I don’t think we should be 
> shy about saying, “I’m sorry, this is not a helpful comment at this time and 
> place.”
> On Fri, Jul 21, 2017 at 11:47 David Hart via swift-evolution 
> <[email protected]> wrote:
>>> On 21 Jul 2017, at 17:11, Nevin Brackett-Rozinsky via swift-evolution 
>>> <[email protected]> wrote:
>>> 
>>> The updates look fine and reasonable to me.
>>> 
>>> That said, I think it is highly important that we have clarity regarding 
>>> what *is* the proper time, method, and process for raising issues with and 
>>> suggesting modifications to approved proposals. If there is one thing we 
>>> have learned recently it is that sometimes a proposed change sounds good 
>>> and gets approved (110, 25, etc.) which subsequently turns out to have 
>>> unintended detrimental consequences.
>>> 
>>> We are not infallible, and there will certainly be times in the future when 
>>> we think a change is good in theory, but then after experiencing it in 
>>> practice we recognize it has problems. When that happens—and happen it 
>>> will—we need to be able to correct our course. And it is far better to fix 
>>> such things before they are released to the wider world.
>>> 
>>> I don’t know if the issues Howard raises rise to that level. I haven’t 
>>> tested out the new integer protocols, so I am not in a position to weigh 
>>> the merits of the claim. Certainly in the abstract “signum” sounds like it 
>>> is asking for a property of the number, and not asking the number to do 
>>> something function-like, but I defer to those who use it in practice.
>>> 
>>> The point is, rather than shutting down discussion by saying “it has 
>>> already been approved” and “this is not the place for discussing that”, it 
>>> would greatly behoove the Swift Evolution process to have an established 
>>> method for recommending changes to already-approved proposals. We have this 
>>> time interval between when a proposal is accepted and when it appears in a 
>>> public release of the language, and it seems only natural to use it as a 
>>> beta-testing period.
>> 
>> I think it also important that we encourage people to participate and not 
>> drive them away. If we decide that a thread talking about revisions to a 
>> proposal is not the right place to discussion other grievances about the 
>> same proposal, perhaps a new thread is the right place.
>> 
>>> That way we can fix problems we encounter before they become permanent, and 
>>> similarly we can make minor changes which are obvious improvements we 
>>> somehow overlooked during the initial review.
>>> 
>>> Nevin
>>> 
>>> 
>>>> On Fri, Jul 21, 2017 at 7:50 AM, Xiaodi Wu via swift-evolution 
>>>> <[email protected]> wrote:
>>>> I understand you feel this way, but this thread is a formal review of 
>>>> specific amendments to SE-0104. Those amendments are, again, the following:
>>>> 
>>>> * Reorganizing shift operators
>>>> * Removing the ArithmeticOverflow type in favor of using a simple Bool
>>>> * Changing BinaryInteger's initializers that convert from floating point 
>>>> values
>>>> * Renaming BinaryInteger's init(extendingOrTruncating:)
>>>> 
>>>>> On Fri, Jul 21, 2017 at 02:08 Haravikk via swift-evolution 
>>>>> <[email protected]> wrote:
>>>>> 
>>>>>> On 21 Jul 2017, at 02:01, Xiaodi Wu via swift-evolution 
>>>>>> <[email protected]> wrote:
>>>>>> 
>>>>>> Hi Howard,
>>>>>> 
>>>>>> The removal of BitwiseOperations is not under review here; that, like 
>>>>>> signum(), has been considered twice and approved twice, and has not been 
>>>>>> revised.
>>>>>> 
>>>>>> On Thu, Jul 20, 2017 at 19:36 Howard Lovatt via swift-evolution 
>>>>>> <[email protected]> wrote:
>>>>>>>> The revised version of the proposal can be found here:
>>>>>>>> https://github.com/apple/swift-evolution/blob/master/proposals/0104-improved-integers.md
>>>>>>>> 
>>>>>>>>        • What is your evaluation of the proposal?
>>>>>>> 
>>>>>>> 
>>>>>>> Overall +1. Two reservations:
>>>>>>> 
>>>>>>>   1. Functions like `signum()` that return a property would read better 
>>>>>>> as a property!
>>>>>>>   2. I have found `BitwiseOperations` useful as an extension to both 
>>>>>>> Bool and Set and for a custom set type. Therefore would prefer its 
>>>>>>> retention and even more preferably that Bool and Set implement it.
>>>>>>> 
>>>>>>>>        • Is the problem being addressed significant enough to warrant 
>>>>>>>> a change to Swift?
>>>>>>> 
>>>>>>> Yes, generic representation of integers is useful.
>>>>>>>  
>>>>>>>>        • Does this proposal fit well with the feel and direction of 
>>>>>>>> Swift?
>>>>>>> 
>>>>>>> Yes, particularly the re-arrangment of the protocol hierarchy is in 
>>>>>>> keeping with the rest of the restructuring of the standard library.
>>>>>>>  
>>>>>>>>        • If you have used other languages or libraries with a similar 
>>>>>>>> feature, how do you feel that this proposal compares to those?
>>>>>>> 
>>>>>>> Yes, many languages I use allow generic numeric functions to be written 
>>>>>>> and I write my own numeric functions and will therefore use these 
>>>>>>> protocols.
>>>>>>>  
>>>>>>>>        • How much effort did you put into your review? A glance, a 
>>>>>>>> quick reading, or an in-depth study?
>>>>>>> 
>>>>>>> Quick read, but have pulled my hair out trying to write generic stuff 
>>>>>>> in Swift as it stands now.
>>>>> 
>>>>> I agree with Howard on both points; In particular I've never agreed with 
>>>>> the removal of BitwiseOperations, and believe it to be a mistake. What's 
>>>>> the point of making Integers more protocol-oriented if you then go about 
>>>>> getting rid of useful protocols?
>>>>> _______________________________________________
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>>>>> [email protected]
>>>>> https://lists.swift.org/mailman/listinfo/swift-evolution
>>>> 
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