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Re: [wg14/wg21 liaison] [isocpp-lib-ext] P2264/N2829 make assert() macro user friendly was adopted for C23

From: Aaron Ballman <aaron_at_[hidden]>
Date: Thu, 17 Feb 2022 14:08:03 -0500
On Thu, Feb 17, 2022 at 11:03 AM Jens Maurer via Lib-Ext
<lib-ext_at_[hidden]> wrote:
>
> On 17/02/2022 16.09, Peter Sommerlad (C++) via Liaison wrote:
> > Hi,
> >
> > it would be great if the assert(...) changes proposed in P2264 could
> > also be adopted for C++23 as a kind of bug fix. The C people see it
> > verbally as a bug fix, because their assert() specification in the
> > non-NDEBUG case was not accepting all scalar expressions as specified.
> >
> > How would we proceed for C++, if any?
> >
> > There is a very simple change, almost editorially, if C++23 is based con
> > C23? Otherwise, it might be OK to wait until C++23.
>
> C++23 is not based on C23. There is/was no paper performing a rebase.
>
> > The wording change is as follows:
> >
> > In [cassert.syn] change the macro definition as follows:
> >
> > -#define assert( E ) see below
> > +#define assert( ... ) see below
> >
> > The contents are the same as the C standard library header <assert.h>,
> > except that a macro named static_assert is not defined.
>
> See https://github.com/cplusplus/papers/issues/957 for the current
> status of this paper.
>
> The only new information I'm seeing here is that WG14 approved the
> change. It would be good to put that into the github issue, Aaron.

I've updated the issue on GitHub now, thanks!

~Aaron

>
> Jens
>
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Received on 2022-02-17 19:08:16