If it’s always been that way - and things rely on it, sure. But it doesn’t feel like the Smalltalk way to me.
Having to know about adding -1 seems very C, whereas Smalltalk always seems more natural ... and 5 to: 1 seems like you would count down, not be an empty range and do nothing. But as you say, it’s personal. I’m still curious though. Tim Sent from my iPhone > On 22 Feb 2019, at 16:13, Konrad Hinsen <konrad.hin...@fastmail.net> wrote: > >> On 22/02/2019 15:57, Tim Mackinnon wrote: >> I've just been caught out with Intervals - why can't you do: >> 5 to: 1 do: [ :i | Transcript show: i printString] (eg a negative interval)? >> >> if you want to iterate down a series of numbers do you really have to do: >> 5 to: 1 by: -1 do: [… >> >> I always assumed that if x > y the step was automatically -1 (but its not). > > Expectations are obviously personal, but as far as I am concerned, I'd expect > to see the behavior that Pharo implements. If you don't specify by:, you get > a default value of 1. That's much simpler than a default value depending on > the bounds of the interval. > > Konrad. > >
