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Subject: Re: [ub] C provenance semantics proposal
From: Jens Maurer (Jens.Maurer_at_[hidden])
Date: 2019-04-10 18:34:22

On 11/04/2019 00.35, David Vandevoorde wrote:
>> On Apr 10, 2019, at 6:28 PM, Jens Maurer <Jens.Maurer_at_[hidden]> wrote:
>> On 11/04/2019 00.06, Jens Gustedt wrote:

>>> On Wed, 10 Apr 2019 23:40:37 +0200 Jens Maurer <Jens.Maurer_at_[hidden]>
>>> wrote:

>> So, again, why do you need to compare pointers to arbitrary
>> objects?
> For hash tables where the keys are pointers to objects?

Ok, what about binary trees where the keys are pointers to objects?
(No worst-case situations, which might be important in some cases.)

Seems like you want arbitrary equality comparisons if and only if
you want arbitrary relational comparisons for the "containers"
use case.


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