on Mon Mar 28 2016, Erica Sadun <erica-AT-ericasadun.com> wrote: >> On Mar 28, 2016, at 3:54 PM, Dave Abrahams via swift-evolution >> <[email protected]> wrote: >> >> >> on Mon Mar 28 2016, Erica Sadun <[email protected]> wrote: >> > >>>> On Mar 28, 2016, at 3:25 PM, Dave Abrahams via swift-evolution >>>> <[email protected]> wrote: >>>> >>>> >>>> on Mon Mar 28 2016, Xiaodi Wu >>> >>>> <[email protected] >>>> <mailto:[email protected]>> >>>> wrote: >>>> >>>>> Right, Countable could refine Strideable. I'm no expert on this, but >>>>> some cursory reading suggests that the analogous feature in C++ simply >>>>> requires the type to have operator++ defined. Obviously, that won't >>>>> work for Swift 3.0... >>>> >>>> Hmm, instead of defining a new protocol (Countable), what if we just use >>>> “Strideable where Stride : Integer” as a constraint? >>> >>> I like a differentiation between continuous and discrete things >>> although both can have ranges, membership, fences, >>> and a way to stride through them >> >> Strideable where Stride : Integer expresses just exactly that. Now if I >> could only get the type-checker to cooperate... > > I am ridiculously excited about what you're doing there.
:-) > Looking forward to beautiful floating point strides if for no > other reason than I can point out how well they work for math > in comparison to traditional for;;loops, How would you like to implement the FP part of this? > so maybe people will stop burning semicolons on my lawn. Naw, showing them a better way'll just get 'em more riled up. > What are you feelings about disjoint and invertible intervals? I don't know what these things are supposed to be, so it's hard to say. > (I'll admit they currently fail the Lattner test[1], Presumably this isn't a language change, though. > but they appeal to my aesthetics) > > -- E > > [1] First rule of Lattner: A language change should provide a highly focused > tweak to Swift with limited impact and a measurable benefit to developers -- Dave _______________________________________________ swift-evolution mailing list [email protected] https://lists.swift.org/mailman/listinfo/swift-evolution
