[swift-evolution] [Draft][Proposal] Formalized Ordering

[Dave Abrahams]

on Thu Jul 21 2016, Duan <swift-evolution at swift.org> wrote:

> Great proposal. I want to second that areSame may mislead user to
> think this is about identity.
>
> I like areEquivalent() but there may be better names.

It really *is* about identity as I posted in a previous message.  But
that doesn't change the fact that areEquivalent might be a better name.
It's one of the things we considered; it just seemed long for no real
benefit.

> Daniel Duan
> Sent from my iPhone
>
>> On Jul 21, 2016, at 6:32 PM, Robert Widmann via swift-evolution
>> <swift-evolution at swift.org> wrote:
>> 
>> 
>>> On Jul 21, 2016, at 6:19 PM, Xiaodi Wu <xiaodi.wu at gmail.com> wrote:
>>> 
>>> This is nice. Is `areSame()` being proposed because static `==` is
>>> the status quo and you're trying to make the point that `==` in the
>>> future need not guarantee the same semantics?
>> 
>> Yep!  Equivalence and equality are strictly very different things.
>> 
>>> 
>>> Nit: I think the more common term in stdlib would be
>>> `areEquivalent()`. Do you think `same` in that context (independent
>>> of the word "ordering") might erroneously suggest identity?
>> 
>> There is room for improvement here.  Keep ‘em coming.
>> 
>>> 
>>> 
>>>> On Thu, Jul 21, 2016 at 8:11 PM, Robert Widmann via
>>>> swift-evolution
>>>> <swift-evolution at swift.org> wrote:
>>>> Hello Swift Community,
>>>> 
>>>> Harlan Haskins, Jaden Geller, and I have been working on a
>>>> proposal to clean up the semantics of ordering relations in the
>>>> standard library.  We have a draft that you can get as a gist.
>>>> Any feedback you might have about this proposal helps - though
>>>> please keeps your comments on Swift-Evolution and not on the gist.
>>>> 
>>>> Cheers,
>>>> 
>>>> ~Robert Widmann
>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
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>>> 
>> 
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-- 
Dave