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Re: SCC / ISO IEC - C++ Superset

From: MLJP <jonathan_at_[hidden]>
Date: Thu, 5 Aug 2021 21:40:36 +0100
If I’ve read your docs correctly you need to put a `cyclic()` check in your destructors to prevent UB. That’s not just working on recompilation.

Jonathan Tanner

> On 5 Aug 2021, at 9:02 pm, Phil Bouchard via Std-Proposals <std-proposals_at_[hidden]> wrote:
>
> 
>
>
>> On 8/5/21 3:41 PM, Miguel Ojeda wrote:
>>> On Thu, Aug 5, 2021 at 9:01 PM Phil Bouchard <boost_at_[hidden]> wrote:
>>> Root Pointer is thread safe as shown in my examples.
>> That is not the point. Rust prevents UB in all safe code. "Root
>> Pointer" being thread-safe is irrelevant: it does not prevent UB in
>> the rest of the code.
>>
>>> I'll read more about the data races later, but general race conditions aren't gone with Rust:
>> Given you are unaware of what Rust brings to the table, please stop
>> claiming your system is "way better" for the kernel.
> Root Pointer is a memory manager. You can add whatever you want to prevent data races:
>
> https://developer.apple.com/documentation/dispatch
>
>
>
>>
>>> Each one of them is derived from the other so you can use it as a simple shared_ptr, or cyclic-safe shared_ptr. The latter is just sizeof(void *) x 2. Kernel programmers should be smart enough to use a unique type for iterators. My implementation is just very generic.
>> The claim you made was that your system works for *existing* code with
>> a simple recompilation as an argument versus "learning Rust"... If
>> kernel developers need to start discriminating pointers, use smart
>> pointers or other annotations, or reimplement anything, then your
>> argument does not work anymore.
> My working method is:
>
> 1) Make things work;
>
> 2) Optimize.
>
> As I said in the other post all the developers needs to know is whether their data is shared across modules or not; for optimization purposes.
>
>
>
> --
>
>
> Phil Bouchard
> Founder & CTO
> C.: (819) 328-4743
>
>
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Received on 2021-08-05 15:40:47