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.error { color:#AA0000; }</style></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><div class="bloop_markdown"><p>In general this is a correct behaviour, because literals in Swift are untyped. <code>Int</code> does not have any initializer for a <code>Bool</code> so the compiler tries to find a type that <strong>might</strong> conforms to <code>ExpressibleByBooleanLiteral</code> for all possible initializer of <code>Int</code> (<code>Int.init(_: TYPE)</code>). This resolution decides to go with <code>NSNumber</code> in your case?!</p>
<p>The thing is, when you write <code>Int(a > b)</code>, you’re passing a <code>Bool</code> and not a literal anymore. Here the compiler does not fallback to <code>NSNumber</code> anymore and reports you an error, because <code>Int.init(_: Bool)</code> does not exist. </p>
<p></p></div><div class="bloop_original_html"><style>body{font-family:Helvetica,Arial;font-size:13px}</style><div id="bloop_customfont" style="font-family:Helvetica,Arial;font-size:13px; color: rgba(0,0,0,1.0); margin: 0px; line-height: auto;"><br></div> <br> <div id="bloop_sign_1479725280398765056" class="bloop_sign"><div style="font-family:helvetica,arial;font-size:13px">-- <br>Adrian Zubarev<br>Sent with Airmail</div></div> <br><p class="airmail_on">Am 21. November 2016 um 04:48:35, Rick Mann via swift-users (<a href="mailto:swift-users@swift.org">swift-users@swift.org</a>) schrieb:</p> <blockquote type="cite" class="clean_bq"><span><div><div></div><div>It seems I can't do this:<br><br>let r = Int(a > b)<br><br>but I can do it with a literal:<br><br>let r = Int(true)<br><br>I'd like to do this to implement signum without branching, but perhaps that's not possible.<br><br>-- <br>Rick Mann<br>rmann@latencyzero.com<br><br><br>_______________________________________________<br>swift-users mailing list<br>swift-users@swift.org<br>https://lists.swift.org/mailman/listinfo/swift-users<br></div></div></span></blockquote></div><div class="bloop_markdown"><p></p></div></body></html>