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Re: [SG10] Feature test macro choice for P2494, Relaxing range adaptors to allow for move only types

From: Barry Revzin <barry.revzin_at_[hidden]>
Date: Wed, 12 Jan 2022 14:34:13 -0600
Strong preference for 2.

As I pointed out in the telecon, __cpp_lib_ranges has already been bumped
twice for changes to basic concepts (
that were both much larger than this: dropping the default constructor
requirement (P2325) and clarify the O(1) rule and adding owning_view

I don't think we have any other changes in flight for __cpp_lib_ranges that
would conflict with this either.


On Wed, Jan 12, 2022 at 1:36 PM Michał Dominiak via SG10 <
sg10_at_[hidden]> wrote:

> Hello, SG10!
> When P2494 <http://wg21.link/P2494> was being discussed in LEWG, there
> were two competing directions for how to handle its feature test macro:
> 1. introduce a new feature test macro that indicates this feature
> specifically; and
> 2. bump __cpp_lib_ranges, since other features in flight for ranges
> have their own feature test macros.
> LEWG requested that I ask this group for a recommendation. Personally I'm
> leaning towards option number 1, since it feels cleaner to me.
> Additionally, if this group recommends that I go with (1), I'd like
> recommendations for what the name of the macro should be, because none of
> the names that I'm coming up with are short enough to be usable, but also
> long enough to be descriptive.
> Thanks,
> Michał
> --
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> SG10_at_[hidden]
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Received on 2022-01-12 20:34:26