On 2/22/24 10:16, Phil Bouchard via Std-Proposals wrote:
>
> Ideally we could have atomic containers they are based on but alas this
> is not the case so they are not lock-free but they are implemented very
> efficiently.

Note also that there is no need for the shared_ptr to be thread_safe
given the mutex locking happens at the container level.

But a thread-safe shared_ptr is still desirable when they are used in
isolation, but that's another subject.

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