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Subject: Re: [boost] A possible date for dropping c++03 support
From: Olaf van der Spek (ml_at_[hidden])
Date: 2018-08-28 11:37:06

On Tue, Aug 28, 2018 at 1:32 PM, Glen Fernandes
<glen.fernandes_at_[hidden]> wrote:
> On Tue, Aug 28, 2018 at 7:19 AM Olaf van der Spek wrote:
>> Part of the problem is that there's no data / visibility on this.
>> Who's using what compilers? When do they plan to move forward?
> Why is lack of data or visibility on this a problem for you?

How would we know whether somebody is depending on something without data?

>> And what costs do others incur for (some of) Boost having to keep
>> supporting this too?
>> > What will change if we (Boost) make that announcement tomorrow? It's still
>> up to the library maintainer.
>> Is it?
>> If one of your dependencies requires C++11...
> Sure. Let's say library Boost.Library today depended on Boost.Core for
> boost::addressof and Boost.TypeTraits for boost::aligned_storage -
> tomorrow and both Boost.Container and Boost.TypeTraits choose to break
> C++03 compatibility: Tomorrow, if Boost.Library's maintainer is still
> interested in supporting C++03 users, they will just provide the above
> in boost::library::detail::addressof and
> boost::library::detail::aligned_storage (either from the existing
> implementations or their own).
> i.e. Even if we announce any such thing, it is still up to the
> maintainer of Boost.Library to drop C++03 support. This might help
> push them in that direction if they don't want the maintenance burden
> sure, but it is no guarantee, especially if their users are more
> important to them.

Even if Boost.Config or .Test move to C++11?
Would it be a free choice for the maintainers of those libs if they
know a lot of libs depend on them?



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