> On Jul 1, 2016, at 11:13 AM, Stephen Canon via swift-evolution > <swift-evolution@swift.org> wrote: > >> On Jul 1, 2016, at 1:11 PM, Jordan Rose via swift-evolution >> <swift-evolution@swift.org <mailto:swift-evolution@swift.org>> wrote: >> >> [Proposal: >> https://github.com/apple/swift-evolution/blob/master/proposals/0113-rounding-functions-on-floatingpoint.md >> >> <https://github.com/apple/swift-evolution/blob/master/proposals/0113-rounding-functions-on-floatingpoint.md> >> ] >> >> Just wondering, why no 'awayFromZero' case? > > It’s not defined or required by IEEE 754. The others are. I wouldn’t be > opposed to adding some other rounding modes, but the IEEE 754 set is as good > as any as a starting point.
I'm hearing a lot of "Wouldn't it be nice if"s, for items falling outside IEEE 754. Could we have a native Math module that offered such niceties under a separate umbrella proposal? Would it be too cluttery to allow things like Double.tau, etc via a Math.Double extension or however that might work? -- E, who abides by Canon law
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