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<body><div>Every time I've tried to use a C-style for loop, I've ended up switching to a while loop because my iteration variable ended up having the wrong type (e.g. having an optional type when the value must be non-optional for the body to execute). The Postmates codebase contains no instances of C-style for loops in Swift.<br></div>
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<div>-Kevin Ballard<br></div>
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<div>On Thu, Dec 3, 2015, at 04:50 PM, Eric Chamberlain wrote:<br></div>
<blockquote type="cite"><div>We’ve developed a number of Swift apps for various clients over the past year and have not needed C style for loops either.<br></div>
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<div><div style="color:rgb(0, 0, 0);letter-spacing:normal;orphans:auto;text-align:start;text-indent:0px;text-transform:none;white-space:normal;widows:auto;word-spacing:0px;-webkit-text-stroke-width:0px;word-wrap:break-word;-webkit-line-break:after-white-space;"><div style="color:rgb(0, 0, 0);letter-spacing:normal;orphans:auto;text-align:start;text-indent:0px;text-transform:none;white-space:normal;widows:auto;word-spacing:0px;-webkit-text-stroke-width:0px;word-wrap:break-word;-webkit-line-break:after-white-space;"><div style="color:rgb(0, 0, 0);letter-spacing:normal;orphans:auto;text-align:start;text-indent:0px;text-transform:none;white-space:normal;widows:auto;word-spacing:0px;-webkit-text-stroke-width:0px;word-wrap:break-word;-webkit-line-break:after-white-space;"><div> </div>
<div style="word-wrap:break-word;-webkit-line-break:after-white-space;"><div><span class="colour" style="color:rgb(0, 0, 0)"><span class="font" style="font-family:Helvetica">--</span></span><br></div>
<div><div><span class="colour" style="color:rgb(0, 0, 0)"><span class="font" style="font-family:Helvetica"><span style="orphans:auto;widows:auto;">Eric Chamberlain, Lead Architect - iOS</span><br style="orphans:auto;widows:auto;">ArcTouch - App Development Studio<br><br></span></span></div>
<div style="font-family:Arial, Verdana, sans-serif;font-size:13px;orphans:auto;widows:auto;"><span class="colour" style="color:rgb(0, 0, 0)"><span class="font" style="font-family:Helvetica">Custom apps for world-class brands and the Fortune 500</span></span><br></div>
<div style="font-family:Arial, Verdana, sans-serif;font-size:13px;orphans:auto;widows:auto;"><span class="colour" style="color:rgb(0, 0, 0)"><span class="font" style="font-family:Helvetica"><a href="http://arctouch.com/work">arctouch.com/work</a> | <a href="http://arctouch.com/blog">arctouch.com/blog</a></span></span><br></div>
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<div><blockquote type="cite"><div>On Dec 3, 2015, at 3:46 PM, Andy Matuschak <<a href="mailto:andy@andymatuschak.org">andy@andymatuschak.org</a>> wrote:<br></div>
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<div><div><div>Just checked; ditto Khan Academy.<br></div>
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<blockquote type="cite"><div>On Dec 3, 2015, at 3:43 PM, Keith Smiley <<a href="mailto:keithbsmiley@gmail.com">keithbsmiley@gmail.com</a>> wrote:<br></div>
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<div>For what it's worth we don't have a single C style for loop in the Lyft<br></div>
<div>codebase.<br></div>
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<div>--<br></div>
<div>Keith Smiley<br></div>
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<div>On 12/03, Douglas Gregor wrote:<br></div>
<blockquote type="cite"><div> </div>
<blockquote type="cite"><div>On Dec 3, 2015, at 3:32 PM, Erica Sadun <<a href="mailto:erica@ericasadun.com">erica@ericasadun.com</a>> wrote:<br></div>
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<div>Does Swift still needs C-style for loops with conditions and incrementers? <br></div>
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<div><Screen Shot 2015-12-03 at 4.30.15 PM.png><br></div>
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<div>More Swift-like construction is already available with for-in-statements and stride. <br></div>
<div>This would naturally starve the most common point for -- and ++ operators as well.<br></div>
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<div>My intuition *completely* agrees that Swift no longer needs C-style for loops. We have richer, better-structured looping and functional algorithms. That said, one bit of data I’d like to see is how often C-style for loops are actually used in Swift. It’s something a quick crawl through Swift sources on GitHub could establish. If the feature feels anachronistic and is rarely used, it’s a good candidate for removal.<br></div>
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<div><span style="white-space:pre;"></span>- Doug<br></div>
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