Here is the link: https://arxiv.org/pdf/1712.06688

Brown, Ellen & Ruppert: Pragmatic Primitives for Non-blocking Data Structures (2017)
 

-----Ursprüngliche Nachricht-----
Von: Jonathan Wakely via Std-Proposals <std-proposals@lists.isocpp.org>
Gesendet: Mo 22.07.2024 13:28
Betreff: Re: [std-proposals] Abstraction for load-linked/store-conditional
An: std-proposals@lists.isocpp.org;
CC: Jonathan Wakely <cxx@kayari.org>;

 

On Mon, 22 Jul 2024 at 08:00, Jens Maurer via Std-Proposals <std-proposals@lists.isocpp.org> wrote:

On 22/07/2024 00.23, Joseph Schuchart via Std-Proposals wrote:
> I'm not sure that this API could be implemented everywhere

And here's the problem: I don't know how you can provide ABA
avoidance if all your hardware has is atomic compare-and-swap.

So, this doesn't really help write portable programs.

We have rather few features in C++ that aren't available on all
implementations, so the introduction of such a non-portable
feature needs additional rationale.

 

And for better or for worse, "not supported on x86" is likely to need a lot more rationale than "not supported on AVR" (for example).

 

 

(There are plenty of hardware features that aren't available
everywhere, yet we strive to make C++ interfaces on them that
can be implemented everywhere, e.g. std::simd.)

Jens

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