<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div><span style="background-color: rgba(255, 255, 255, 0);">You raise an interesting point. To explore this further: we could definitely just lower a lot of it to the appropriate integer-width arithmetic in LLVM. </span>I suspect the limitations of the standard library implementation you bring up exist because "nonstandard" types such as these don't show up when we have to bridge C and ObjC so it isn't as much a priority that we generalize over the entire space. Doing so would also seem to require the ability to use, say, integer literals in generics like C++.</div><div><br></div><div>As for the char size issue, we define both sizeof and a platform-dependent CChar typealias that you can measure against.</div><div><br><div>~Robert Widmann</div></div><div><br>2016/06/17 13:01、Daryle Walker via swift-evolution <<a href="mailto:swift-evolution@swift.org">swift-evolution@swift.org</a>> のメッセージ:<br><br></div><blockquote type="cite"><div><meta http-equiv="Content-Type" content="text/html charset=utf-8"><div class="">When I first looked into Swift, I noticed that the base type was called “UInt8” (and “Int8”) and not something like “Byte.” I know modern computers have followed the bog standard 8/16/32(/64) architecture for decades, but why hard code it into the language/library? Why should 36-bit processors with 9-bit bytes, or processors that start at 16 bits, be excluded right off the bat? Did you guys see a problem with how (Objective-)C(++) had to define its base types in a mushy way to accommodate the possibility non-octet bytes?</div><div class=""><br class=""></div><div class="">BTW, is there an equivalent of CHAR_BIT, the number of bits per byte, in the library? Or are we supposed to hard code an “8”?</div><div class=""><br class=""></div><div class="">
<div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class="">— </div><div class="">Daryle Walker<br class="">Mac, Internet, and Video Game Junkie<br class="">darylew AT mac DOT com </div></div>
</div>
<br class=""></div></blockquote><blockquote type="cite"><div><span>_______________________________________________</span><br><span>swift-evolution mailing list</span><br><span><a href="mailto:swift-evolution@swift.org">swift-evolution@swift.org</a></span><br><span><a href="https://lists.swift.org/mailman/listinfo/swift-evolution">https://lists.swift.org/mailman/listinfo/swift-evolution</a></span><br></div></blockquote></body></html>