This is the opinion of Dykstra: https://www.cs.utexas.edu/users/EWD/ewd08xx/EWD8...

Iwan-Zotow · on May 13, 2023

sure, [0...N) ranges are composable, to be short

sundarurfriend · on May 14, 2023

That is such a weird argument to me. I can count in the fingers of one hand the number of times in my life that I've had to compose ranges, it seems a strange thing to optimize for.

Iwan-Zotow · on May 17, 2023

Splitting and combining back ranges is very common activity since about Core 2 Duo, when multi-core getting to be a normal.

I mean, computing mean - split range, get result per split and combine it back, and so on and so forth

npalli · on May 14, 2023

You seem to have a weird fetish for composable ranges seeing your history of comments on exactly this topic (even this thread!). The number of times I have had to think about composability as you mention is close to zero. In fact, the off-by-one errors with C class of languages due to the open ended nature of the interval have bit me about 3-4 orders of magnitude more. There is an entire class of security bugs because of this. I find this obsession very strange, YMMV obviously.