<div dir="ltr">Whoops, I meant append()/popFirst. That is, even for a single-ended queue, you'll use one "first" operation (less efficient) and one "last" operation.<div class="gmail_extra">
<br><div class="gmail_quote">On Wed, Jan 6, 2016 at 3:47 PM, Dave Abrahams <span dir="ltr"><<a href="mailto:dabrahams@apple.com" target="_blank">dabrahams@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 Jan 6, 2016, at 3:42 PM, Jacob Bandes-Storch <<a href="mailto:jtbandes@gmail.com" target="_blank">jtbandes@gmail.com</a>> wrote:</div><br><div><div dir="ltr">Oops, I forgot this existed.<div><br></div><div>I'm assuming you're recommending popLast for performance reasons? Unfortunately, for a </div></div></div></blockquote><div><br></div></span><div>…double-ended…</div><br><blockquote type="cite"><div><div dir="ltr"><div>queue, you'll need either insertAtIndex(0)/popLast or append()/popLast (or a different data structure)…</div></div></div></blockquote><div><br></div>Yes, the standard library should acquire a Deque data structure at some point.</div></div></blockquote><div><br></div><div>Is there a SR for this?</div><div> </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"><span class=""><div><br><blockquote type="cite"><div><div dir="ltr"><div class="gmail_extra"><br clear="all"><div><div><div dir="ltr"><div>Jacob<br></div></div></div></div>
<br><div class="gmail_quote">On Wed, Jan 6, 2016 at 3:41 PM, Dave Abrahams 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">That method exists and is called popFirst<div><br></div><div>However, if you have an Array I suggest using popLast instead if you have the choice :-)</div><div><br><div><blockquote type="cite"><div><div><div>On Jan 6, 2016, at 9:36 AM, James Campbell via swift-evolution <<a href="mailto:swift-evolution@swift.org" target="_blank">swift-evolution@swift.org</a>> wrote:</div><br></div></div><div><div><div><div dir="ltr">If you call removeFirst and the array is empty it would be great if it was optional so it could return nil or at least it threw an error so you could handle that case.<br clear="all"><div><br></div>-- <br><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div><span style="font-size:16px;line-height:19.2px"></span><span style="font-size:12.8px"> Wizard</span><br></div><div><a href="mailto:james@supmenow.com" target="_blank">james@supmenow.com</a></div><div><a href="tel:%2B44%207523%20279%20698" value="+447523279698" target="_blank">+44 7523 279 698</a></div></div></div></div></div></div>
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