Re: [boost] [thread] using Boost.Thread with move-only arguments

Subject: Re: [boost] [thread] using Boost.Thread with move-only arguments
From: Vicente J. Botet Escriba (vicente.botet_at_[hidden])
Date: 2013-04-10 01:46:03

Le 10/04/13 02:48, Fernando Pelliccioni a écrit :
> On Mon, Apr 8, 2013 at 3:15 AM, Vicente J. Botet Escriba <
> vicente.botet_at_[hidden]> wrote:
>
>> Le 08/04/13 01:37, Fernando Pelliccioni a écrit :
>>
>>> El abr 7, 2013 8:17 PM, "Vicente J. Botet Escriba" <
>>> vicente.botet_at_[hidden]>
>>> escribió:
>>>
>> Yes, the current implementation works only when
>>
>>      ! defined(BOOST_NO_SFINAE_EXPR) && \
>>      ! defined(BOOST_NO_CXX11_**VARIADIC_TEMPLATES) && \
>>      ! defined(BOOST_NO_CXX11_**DECLTYPE) && \
>>      ! defined(BOOST_NO_CXX11_**DECLTYPE_N3276) && \
>>      ! defined(BOOST_NO_CXX11_AUTO) && \
>>      ! defined(BOOST_NO_CXX11_RVALUE_**REFERENCES) && \
>>      ! defined(BOOST_NO_CXX11_HDR_**TUPLE)
>>
>>
> The only unsupported feature of the list is DECLTYPE_N3276 for GCC >= 4.7
>
> http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2011/n3276.pdf
>
> ! defined(BOOST_NO_CXX11_**DECLTYPE_N3276)
> is not fulfilled
>
> Are we sure that GCC 4.7 does not fulfill it? Is Boost.Config right?
>
> I could not read N3276. Is it absolutely necessary to this requirement to
> the compiler?
>
It is announce for gcc-4.8.1. See the boost/thread/detail/invoke.hpp 
file. I have not tried to implement it using result_of, but I think that 
we have the same issue with the current result_of.
Whether this is possible in c++03 is an open point.

Best,
Vicente