Revision review: SE-104: Protocol-oriented integers

The revised version of the proposal can be found here:
GitHub - apple/swift-evolution: This maintains proposals for changes and user-visible enhancements to the Swift Programming Language.
proposals/0104-improved-integers.md

• What is your evaluation of the proposal?

Overall +1. Two reservations:

  1. Functions like `signum()` that return a property would read better as
a property!
  2. I have found `BitwiseOperations` useful as an extension to both Bool
and Set and for a custom set type. Therefore would prefer its retention and
even more preferably that Bool and Set implement it.

• Is the problem being addressed significant enough to warrant a change to

Swift?

Yes, generic representation of integers is useful.

• Does this proposal fit well with the feel and direction of Swift?

Yes, particularly the re-arrangment of the protocol hierarchy is in keeping
with the rest of the restructuring of the standard library.

• If you have used other languages or libraries with a similar feature,
how do you feel that this proposal compares to those?

Yes, many languages I use allow generic numeric functions to be written and
I write my own numeric functions and will therefore use these protocols.

• How much effort did you put into your review? A glance, a quick reading,
or an in-depth study?

Quick read, but have pulled my hair out trying to write generic stuff in
Swift as it stands now.