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From: Peter Dimov (pdimov_at_[hidden])
Date: 2020-12-04 17:44:48

Andrey Semashev wrote:

> > [*] Incidentally we want to increment with memory order relaxed instead
> > of acq_rel.
> This would probably be a good optimization in atomic_count.

atomic_count can't do this because it doesn't have enough knowledge about
the context in which it's used.

In principle you can use negative values for the count, again destroying on

I could have specified ++a to be relaxed, but it is what it is at this

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