[swift-evolution] protocol-oriented integers (take 2)

[Rob Mayoff]

On Sat, Jan 14, 2017 at 7:41 PM, Dave Abrahams via swift-evolution <
swift-evolution at swift.org> wrote:

> Oh... you mean that word(at:) itself would be linear, and thus
> algorithms that iterate the words linearly would be O(N^2)...  yuck.
>

Couldn't you fix this by replacing `func word(at n: Int) -> UInt` with `var
words: Sequence<UInt>`, producing the words from least to most significant?
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