<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div dir="auto" style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><div dir="auto" style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><div dir="auto" style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">I've come across multiple cases, where you simply know the array is never empty and hence the optionality on first, last and behavior of a few other members is slightly different. Also, there are cases where you want to declare that you shouldn't pass an empty array e.g. into an initializer.</div><div dir="auto" style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><div class=""><br class=""></div><div class="">I was wondering whether Swift could have a specialized NonEmptyArray that could be used throughout the stdlib - e.g. <span style="font-family: Menlo; font-size: 9px;" class="">String.components(separatedBy:)</span> would return NonEmptyArray.</div><div class=""><br class=""></div><div class="">Thoughts?</div></div>
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