<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=""><div class="">Reply below.</div><br class=""><div><blockquote type="cite" class=""><div class="">On 22 May 2017, at 06:44, Xiaodi Wu 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=""><span style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">[…], but the unlabeled spelling is not harmful, as `Int.init(_: Float)` is after all a non-failable initializer that converts from a floating point value to an integer value.<span class="Apple-converted-space"> </span></span></div></blockquote></div><div class=""><br class=""></div><div class="">I respectfully disagree. From my experience (tutoring), this is harmful. It leads to subtle bugs all over the place. That’s what I observe.</div><div class=""><br class=""></div><div class="">Another citation from Swift API Guidelines:</div><div class=""><br class=""></div><div class=""><blockquote type="cite" class="">In initializers that perform value preserving type conversions, omit the first argument label, e.g. Int64(someUInt32)</blockquote><br class=""></div><div class="">This is not a value preserving conversion, is it?</div><div class=""><br class=""></div><div class="">R+</div><div class=""><br class=""></div></body></html>