[phobos] datetime review

[Andrei Alexandrescu]

On 10/12/2010 08:26 AM, Michel Fortin wrote:
> A date can be expressed using different calendars, but can also be
> stored as an interval since a reference date (like the UNIX epoch).
> With your main storage format calendar-agnostic you can easily
> convert back and forth to different calendars-specific formats.

Interesting point. I wonder what Boost does.

> Also, if you're dealing only with time -- like calculating the time
> elapsed between two time points -- then you don't need any calendar
> unless you plan to display that elapsed time in months or years.
>
> And of course I never meant that Phobos should provide more calendars
> than gregorian. That said, it'd be good if it its gregorian
> implementation could be used as a base to implement other calendars.

Speaking of all this, Jonathan, what's your plan right now? There's been 
some points raised here and there by people, you replied "this is a good 
suggestion but there are cons as well", so I'm not sure whether you plan 
to keep the submission as is or operate changes to it. In the latter 
case, I'm unclear on what changes you have decided to make.

One other thing - it might be useful to take this entire review process 
to digitalmars.D. Is everyone comfortable with that?


Andrei