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Re: [std-proposals] Fwd: set_new_handler extension

From: Phil Bouchard <boost_at_[hidden]>
Date: Thu, 25 May 2023 16:53:04 -0400
On 5/25/23 16:49, Jason McKesson via Std-Proposals wrote:
> On Thu, May 25, 2023 at 4:18 PM Phil Bouchard <boost_at_[hidden]> wrote:
>>
>>
>>
>> On 5/25/23 16:12, Jason McKesson via Std-Proposals wrote:
>>>
>>> Um, no. That would break the performance of any number of applications
>>> that don't need thread safety or have handled it properly themselves.
>>
>> You just turn it on or off depending on the need, defaulting to off
>> obviously.
>
> Again, no. In order to make operations on the same `std::vector<int>`
> thread-safe, every such object would have to carry some kind of
> mutually-exclusive payload. Therefore, every such object would have to
> carry a cost. Even if we somehow standardized the ability to switch it
> on and off, that would break if I used a library that had a different
> setting from the one I compile for myself. Our objects wouldn't be the
> same objects.

Ok I won't argue here but it's pretty easy to make derived thread-safe
versions anyways. So I'll write my own versions then, thanks.

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Received on 2023-05-25 20:53:05