<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Thu, Jul 21, 2016 at 8:32 PM, Robert Widmann <span dir="ltr"><<a href="mailto:rwidmann@apple.com" target="_blank">rwidmann@apple.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word"><br><div><span class=""><blockquote type="cite"><div>On Jul 21, 2016, at 6:19 PM, Xiaodi Wu <<a href="mailto:xiaodi.wu@gmail.com" target="_blank">xiaodi.wu@gmail.com</a>> wrote:</div><br><div><div dir="ltr">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?</div></div></blockquote><div><br></div></span><div>Yep! Equivalence and equality are strictly very different things.</div><span class=""><br><blockquote type="cite"><div><div dir="ltr"><div><br><div>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?</div></div></div></div></blockquote><div><br></div></span><div>There is room for improvement here. Keep ‘em coming.</div></div></div></blockquote><div><br></div><div>Well, since you asked...</div><div>Wikipedia reminds me that a ~ b is an appropriate mathematical notation for equivalence of a and b. We probably wouldn't want to confuse things with bitwise not, but in the grand tradition of reduplicating to form operators from their mathematical counterparts, what about infix operator `~~`? [In a few minutes, I might find this to be a terrible idea.]<br></div><div><br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word"><div><span class=""><blockquote type="cite"><div><div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Thu, Jul 21, 2016 at 8:11 PM, Robert Widmann via swift-evolution <span dir="ltr"><<a href="mailto:swift-evolution@swift.org" target="_blank">swift-evolution@swift.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word"><div>Hello Swift Community,</div><div><br></div><div>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 <a href="https://gist.github.com/CodaFi/f0347bd37f1c407bf7ea0c429ead380e" target="_blank">get as a gist.</a> Any feedback you might have about this proposal helps - though please keeps your comments on Swift-Evolution and not on the gist.</div><div><br></div><div>Cheers,</div><div><br></div><div>~Robert Widmann</div><div><br></div><div><br></div><div><br></div><div><br></div></div>
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