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> On Jan 16, 2018, at 23:45, Jonathan Hull via swift-evolution > <swift-evolution@swift.org> wrote: > > Mainly semantics. > > We could technically use Int instead of having a Bool type (just using 1 and > 0). We don’t do that since Int and Bool have intrinsically different > meanings in code. > > What I am saying is that parameters that take the range 0 to 1 typically have > a fundamentally different meaning (or at least a different way of thinking > about them) than Doubles. It would be nice to be able to see that > distinction when using APIs. > > With both this and the Angle type, I am pointing out areas where, due to > historical reasons in C, we have conflated a bunch of types which have > different behavior, and then just expect programmers to be conscientious > enough to use them correctly in each case. These types/numbers all have a > different forms of dimensionality. > > I’d like to discuss that before we lock everything down. +1 (although I think a “normalized to [0, 1]” type would be more useful than a “percentage” type) - Dave Sweeris _______________________________________________ swift-evolution mailing list swift-evolution@swift.org https://lists.swift.org/mailman/listinfo/swift-evolution
