Hi Petr,
On Tue, 16 Oct 2018 at 21:25, Petr Fischer via Pharo-users
<pharo-users@lists.pharo.org> wrote:
>
> My problem - use Dates as Dictionary keys - shortly:
>
> d1 := Date today translateToUTC.
> d2 := Date today.
>
> d1 = d2. (true!)
Of course, this doesn't help with using Date as a key in a dictionary.
Probably your best option is to look at Sven's excellent ZTimezone
package (although I haven't tested it in this scenario).
The base problem here is that the hash of the dates is not the same for dates that are equal - that should never happen.�� If you try
d1 hash = d2 hash
you should see that the hash's are different (Petr for sure; you for the cases where the offsets are different).
When objects (especially fo the same class) are =, then their hash must be the same as well, or things break.
-cbc��