[cfe-dev] The state of Concepts in Clang

[Hannes Hauswedell via cfe-dev]

Hi Hubert,

thanks for the reply and the "warning sign". I am aware that the
discussion on Concepts is ongoing, but there is the published ISO/IEC TS
19217:2015 that GCC implements and it has been rather stable from my
knowledge.
In any case my original question still remains: is there an ETA for
concepts in Clang? Is there a person responsible for it right now that
could have more details?

Thanks,
Hannes
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On 05.02.2017 18:57, Hubert Tong wrote:
> The Concepts TS implementation for Clang is occurring on trunk; so you are
> looking in the right place.
> Regardless of the implementation status in Clang, the TS remains an
> experimental design, which may be subject to change.
> So, I think that using relying on the Concepts TS in production carries
> some risks: even if the support is there, it might not be the same as GCC
> or the current version of the TS.
> 
> -- HT
> 
> On Sun, Feb 5, 2017 at 8:43 AM, Hannes Hauswedell via cfe-dev <
> cfe-dev at lists.llvm.org> wrote:
> 
>> Hi everyone,
>>
>> I wanted to ask what the current state of the Concepts TS is in Clang. I
>> saw some older list threads last year, but also didn't see much in
>> regard of commits, but maybe I am also looking in the wrong places.
>>
>> The status page lists it as WIP, but from my own experience I know that
>> WIP can me anything from "we are running the last tests before release"
>> to "I have put it on the TODO list".
>>
>> The background is that we are currently redesigning a large template
>> library and would really like to make use of concepts. Working with GCC
>> during development is not a problem, but when we start distributing
>> first release candidates maybe a year from now, it would be important to
>> have Clang support, too.
>>
>> If someone could shed light on the current status and whether there is
>> an ETA that would help us a lot. Note that I am not implying that anyone
>> should do anything for us, it's just important for us to know whether
>> it's something we can likely expect for e.g. clang-6 or "definetely not
>> in the next two years".
>>
>> Thank you,
>> Hannes
>> --
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>> fingerprint: FC35 7547 7916 DA55 DC42 27EA 1D57 8E18 A109 60BF
>>
>>
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>>
>>
> 


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