[riot-notifications] [RIOT-OS/RIOT] sys/ztimer: Potential footgun when mixing timestamps of ztimer clocks (#16698)
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Tue Aug 3 11:44:56 CEST 2021
> Some notion of "now" also is required for e.g. stuff like [SenML](https://datatracker.ietf.org/doc/html/rfc8428#section-4.5.3).
Note that points in time are always given as a duration since some reference point (epoch). E.g. most humans tend to specify points in time as duration since the birth of guy whose mother was - according to Christian mythology - still a virgin.
The suggestions in 5 makes the reference time point an explicit API argument (rather than an implicit), which I believe would increase awareness that those reference points are actually independent. And if bugs still get in, the `assert()`s will ease debugging significantly.
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