<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><br class=""><div><blockquote type="cite" class=""><div class="">On Feb 11, 2016, at 2:19 PM, Jacob Bandes-Storch via swift-evolution <<a href="mailto:swift-evolution@swift.org" class="">swift-evolution@swift.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class=""><div class="gmail_extra"><div class="gmail_quote">On Thu, Feb 11, 2016 at 11:09 AM, Erica Sadun via swift-evolution <span dir="ltr" class=""><<a href="mailto:swift-evolution@swift.org" target="_blank" class="">swift-evolution@swift.org</a>></span> wrote:<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word" class=""><div class=""><b class="">Non-Mutating, returning new value</b>: unioned(with), intersected(with), exclusiveOred(with)</div><div class=""><br class=""></div><div class="">Reasoning:</div><div class=""><br class=""></div><div class="">* <b class="">I think the -ing endings sound unnatural, stilted, and unmathematical. </b>They make me wince.</div></div></blockquote><div class=""><br class=""></div><div class="">So do the -ed versions, IMO. That's why -InPlace is such a convenient suffix.</div></div></div></div></div></blockquote><br class=""></div><div>“exclusiveOr” is pretty awkward too. I would tend to call this either “xor” or “symmetricDifference”.</div><div><br class=""></div><div>– Steve</div></body></html>