Re: [boost] [result_of] now uses decltype on release branch

Subject: Re: [boost] [result_of] now uses decltype on release branch
From: Michel Morin (mimomorin_at_[hidden])
Date: 2012-10-20 23:03:23

Eric Niebler wrote:
>>> Great WG paper by Eric, Daniel and Joel:
>>>
>>>     std::result_of and SFINAE
>>>     http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3436.html
>>>
>>> Bravo!
>>
>> Thanks. I'll be going to Portland to champion the proposal. I expect
>> some wording tweaks, but for it to be otherwise uncontroversial. One
>> wrinkle could be a late proposal by Bjarne and Andrew Sutton to change
>> the rules of sfinae to obviate the need for hacks like this, but I don't
>> think it should effect whether our resolution gets accepted or not.
>>
>> After Portland, I'll post a message here to let folks know how it went.
>
> Follow up: The paper was accepted. This wording, with minor edits, will
> be integrated into the working draft and will be part of the next
> standard (which is slated for 2014, btw).

That's nice, thanks for the follow-up!

> Standard library vendors who
> haven't implemented it already will probably begin doing so shortly.

Now std::result_of and std::common_type are SFINAE-friendly in libstdc++.

Regards,
Michel