On 09/04/2015 12:11 PM, Alexander Belopolsky wrote: > Keep in mind that the standard library should not only support "casual > users", but also those who will write a "period > recurrence library" for those "casual users." This is where classic > arithmetic is indispensable.
Oh, I'm well aware. But naive arithmetic is always available - on naive datetimes. Btw, I have a minor objection to the term "classic arithmetic." It's a made-up term from this mailing list, and I don't think it describes a real distinct thing, it's just a euphemism for "naive arithmetic." I'm not sure why the euphemism arose; I _think_ it arose because it sounds wrong to say that aware datetimes perform naive arithmetic. I think that sounds wrong to roughly the same extent that it is wrong, so I don't see any point in using a made-up euphemism to hide it :-) Carl
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