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Re: [SG10] New issue: missing feature test macro for <span>

From: Jonathan Wakely <cxx_at_[hidden]>
Date: Tue, 17 Sep 2019 17:58:16 +0100
On Sat, 14 Sep 2019, 17:25 Daniel Kr├╝gler, <daniel.kruegler_at_[hidden]>

> Am Do., 5. Sept. 2019 um 13:51 Uhr schrieb Jonathan Wakely <cxx_at_[hidden]
> >:
> >
> > There is no feature test macro for std::span.
> >
> > For the purposes of SD-6, I think we want two values: 201803L for the
> original addition of <span> by P0122R7 (Jacksonville, 2018) and then
> 201902L for the API changes from P1024R3 (Kona, 2019). The C++ working
> draft only needs the newer value.
> >
> > Proposed resolution:
> >
> > Add a row to [tab:support.ft] in [support.limits.general]:
> >
> > __cpp_lib_span 201902L <span>
> A new issue has been created, please reload and double-check:
> https://cplusplus.github.io/LWG/issue3274
> To everyone else responding to this thread: An issue submission is not
> a priority vote. Please wait for the corresponding reflector thread.
> @Jonathan: Submitting an issue and adding at the same time the LWG
> reflector list on CC has IMO a lot of disadvantages: It adds
> additional discussion about the suggested wording (So that I have to
> start figuring out the actual submission content based on a
> potentially long email thread) and people start voting on it, like in
> this case. Please separate the submission email from an LWG discussion
> about that issue in the future (Just remove the lwgchair address from
> the second kind of email).

The intention was to give the reflector a heads up about the new issue. I
will avoid doing so in future, sorry for complicating things.

Received on 2019-09-17 18:58:26