<div dir="ltr"><div class="gmail_default" style="font-family:georgia,serif">I, as a none-native-English-speaker, do think iff as a type error at first for a long time. And I doubt it as I see it everywhere. But I have never look it up.</div><div class="gmail_default" style="font-family:georgia,serif"><br></div><div class="gmail_default" style="font-family:georgia,serif">I just use iff as if and do not think there is a much difference. I thank to Brian for he finally letting me know the real meaning. I think if itself means iff, but I am not computer major, so I can only represent as a layman.</div><div class="gmail_default" style="font-family:georgia,serif"><br></div><div class="gmail_default" style="font-family:georgia,serif">zhaoxin</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Feb 9, 2016 at 2:18 AM, Erica Sadun via swift-users <span dir="ltr"><<a href="mailto:swift-users@swift.org" target="_blank">swift-users@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>I personally wouldn't change it.</div><div><br></div><div>A few thoughts:</div><div><br></div><div>* It's a well known term of art among developers</div><div>* If you see "iff" more than once, you're going to be curious</div><div>* Hopefully you'll type "<b>what does iff mean</b>" into Google at that point and Google will respond like this: <a href="http://imgur.com/1a7b3rp" target="_blank">http://imgur.com/1a7b3rp</a></div><div>* see also: <a href="http://ericasadun.com/2015/09/30/dear-erica-whats-iff/" target="_blank">http://ericasadun.com/2015/09/30/dear-erica-whats-iff/</a></div><div><br></div><div>-- E</div><div><div class="h5"><div><br></div><div><br></div><div><blockquote type="cite"><div>On Feb 7, 2016, at 9:16 PM, Brian Bauer via swift-users <<a href="mailto:swift-users@swift.org" target="_blank">swift-users@swift.org</a>> wrote:</div><br><div><div>I apologize in advance if this subject has already been discussed and decided (as far as I can tell, the mailing list archives go back only about 60 days)…<br><br>When running through the Swift Tour portion of the Swift eBook, on page 10 there is a code snippet showing an example of the switch statement. While typing that into an Xcode playground, I get a code completion popup on the “hasSuffix” method and the documentation says “Returns true iff self ends with suffix.” This looks like a typo. I know that it means “If and Only If” but to a less experienced developer this is likely to be misunderstood, especially as I can find no explanation for “iff” anywhere in the documentation.<br><br>The source of this documentation nugget is a comment in /stdlib/public/core/StringLegacy.swift, so I think discussion of the topic is relevant here.<br><br>Swift is touted as being friendly to new programmers and I don’t think it is reasonable to expect new programmers to understand “iff” and I also don’t think it is reasonable to spend a paragraph explaining “iff” at the beginning of an introduction to Swift, thus I suggest removing “iff” from all code comments that are likely to become user-facing documentation (the triple slash). Or at the very least, user-facing documentation that is likely to be read by beginners.<br><br>A quick grep of the source gives me somewhere in the neighborhood of 130 instances of “iff” in a triple-slash comment, and I am more than happy to make all of the changes and submit pull requests. Before taking on that work, however, I would like to know if such a change would be welcome or if anyone has a better idea, etc.<br><br>Thanks,<br>Brian<br><br>_______________________________________________<br>swift-users mailing list<br><a href="mailto:swift-users@swift.org" target="_blank">swift-users@swift.org</a><br><a href="https://lists.swift.org/mailman/listinfo/swift-users" target="_blank">https://lists.swift.org/mailman/listinfo/swift-users</a><br></div></div></blockquote></div><br></div></div></div><br>_______________________________________________<br>
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