Given that Arithmetic also provides for multiplication and division, might
it be wise then also to have .multiplicativeIdentity (or .one)?
···
On Sun, Jan 15, 2017 at 02:47 Dave Abrahams via swift-evolution < swift-evolution@swift.org> wrote:
on Sat Jan 14 2017, Dave Abrahams <swift-evolution@swift.org> wrote:
> That said, the ability to interpret integer literals as an arbitrary
> Arithmetic isn't used anywhere in the standard library, so I'd like to
> consider undoing
>
Getting rid of Arithmetic.init() in favor of 0 · apple/swift@de5b03d · GitHub
> and moving ExpressibleByIntegerLiteral down the protocol hierarchy to
> BinaryInteger.Oh, and I meant to add: maybe the right way for an arbitrary X modeling
Arithmetic to spell zero (which is needed for negation) is something
likeX.additiveIdentity
or
X.zero
in other words, via a requirement
static var theNameWeChoose: Self { get }
--
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