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From: Edward Diener (eldiener_at_[hidden])
Date: 2020-12-25 05:31:03

On 12/24/2020 9:10 PM, Donovan Dikaio via Boost wrote:
> I can look into it. But needs to make the requirements clear.
> So, the task is to show *C++ standard minimum level: C++nn* for Standard
> attribute for each lib in this page: C++ standard minimum level: C++nn ?
> And we could replace nn with the actual number by checking the *cxxstd* key
> in a library's meta info json file.
> Please let me know if I got it right.

No, the current 'Standard' mnemonic is not used by the 'cxxstd' change.
Instead create a new mnemonic called "C++ standard minimum level" with
the value of 03,11,14,17,20 depending on the value of the meta file json
field 'cxxstd'. If the meta file json field 'cxxstd' does not exist in a
library's meta file, the value of 03 is assumed. Currently I have only
attempted to update the meta file with the new 'cxxstd' field and
appropriate value for libraries whose minimum support is C++11 or above,
with PRs. I am still waiting for four of those libraries to merge their
PRs on the 'develop' branch:


There has also been a suggestion to remove the 'Standard' mnemonic
entirely from the documentation for each library, since its previous
usage is out of date and has been totally irrelevant for a long time
now, and therefore ignore or remove the 'std' meta file json field. I am
in favor of that also, but others may be against it. I would also not
want to reuse that 'Standard' mnemonic instead of the more precise one
of 'C++ standard minimum level', which is easily understood. If someone
would like to argue for 'C++ standard minimum level required' that is
even better but may be too long.

> On Fri, Dec 25, 2020 at 10:00 AM Louis Tatta <louis_at_[hidden]> wrote:
>> ---------- Forwarded message ---------
>> From: Edward Diener via Boost <boost_at_[hidden]>
>> Date: Wed, Dec 23, 2020 at 7:39 PM
>> Subject: [boost] Boost website changes and .'cxxstd'
>> To: <boost_at_[hidden]>
>> CC: Edward Diener <eldiener_at_[hidden]>
>> Even though I have worked a little with PHP in the past I do not have
>> the talent to make the change to the website which would incorporate the
>> addition of the meta information json field 'cxxstd' to the Boost
>> documentation web page for each library. The idea is that if 'cxxstd' is
>> set to a value the documentation for that library would also show:
>> C++ standard minimum level: C++nn
>> where nn would be 11, 14, 17, or 20 depending on the value of 'cxxstd'.
>> Alternatively if there is no 'cxxstd' entry for a library or if the
>> value of 'cxxstd' is '03', we could either specify 'nn' as '03' or leave
>> off the line stating the 'C++ standard minimum level completely.
>> On the face of it this should be doable in the website code but
>> evidently Daniel James is the only one who really understands how this
>> works in the code and he is no longer active in Boost. So if someone
>> else who understands the website code and PHP could do this it would be
>> appreciated, since I think it will be valuable telling end-users whether
>> a Boost library is usable at the C++ compiler level they are using.
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