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Re: [std-proposals] Signed sizes

From: Tiago Freire <tmiguelf_at_[hidden]>
Date: Tue, 10 Dec 2024 22:20:44 +0000
Or we just do literally nothing.
Just get used regular unsigned integers, because there’s absolutely nothing wrong with them and the standard already is how it should be in this matter.

From: Std-Proposals <std-proposals-bounces_at_[hidden]> On Behalf Of Sebastian Wittmeier via Std-Proposals
Sent: Tuesday, December 10, 2024 9:22 PM
To: std-proposals_at_[hidden]
Cc: Sebastian Wittmeier <wittmeier_at_[hidden]>
Subject: Re: [std-proposals] Signed sizes


Or arithmetic types with compile-time or runtime upper and lower boundaries (a fixed interval of values) with contracts support?

-----Ursprüngliche Nachricht-----
Von: Olaf van der Spek via Std-Proposals <std-proposals_at_[hidden]<mailto:std-proposals_at_[hidden]>>
Gesendet: Di 10.12.2024 21:16
Betreff: Re: [std-proposals] Signed sizes
An: std-proposals_at_[hidden]<mailto:std-proposals_at_[hidden]>;
CC: Olaf van der Spek <ml_at_[hidden]<mailto:ml_at_vdspek.org>>;
On Tue, Dec 10, 2024 at 5:01 AM Jeremy Rifkin via Std-Proposals
<std-proposals_at_[hidden]<mailto:std-proposals_at_[hidden]>> wrote:
> In the specific case of std::views::enumerate, one option would be to
> add a variation that produces unsigned indexes. This, plasters over
> the underlying issue and could lead ot more confusion about mixing,
> however, it would alleviate some issues.
>
> The other option would be a bigger plan to deprecate and remove
> unsigned indexing APIs and replace them with signed APIs:

A third option would be to introduce one or more new types.
For example unsigned types with a bit less and without modulo
semantics, such that they can always convert to signed types. This
would allow you to mix and match these with signed types without
issues.
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Received on 2024-12-10 22:20:47