[swift-evolution] [Review] SE-0104: Protocol-oriented integers
David Waite
david at alkaline-solutions.com
Thu Jun 23 00:42:00 CDT 2016
In addition to the technical review, I would like to point out that the definition of Arithmetic appears to be missing some underscores in add/adding/subtract/subtracting
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> https://github.com/apple/swift-evolution/blob/master/proposals/0104-improved-integers.md
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> * What is your evaluation of the proposal?
I’m so glad this work is being done!
For Integer, does the presence of signBit indicate an expectation that signed Integers will have a two's complement representation?
For FixedWidthInteger#dividedWithOverflow/remainderWithOverflow, under what situations would you have an overflow? I could only come up with something like Int.min.dividedWithOverflow(-1).
> * Is the problem being addressed significant enough to warrant a change to Swift?
Yes, oh yes.
> * Does this proposal fit well with the feel and direction of Swift?
It looks like a significant improvement.
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> * How much effort did you put into your review? A glance, a quick reading, or an in-depth study?
I combed the proposal for questions, although most were answered by the time I hit the end.
-DW
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