Re: [boost] [config] clang deleted functions bugged

Subject: Re: [boost] [config] clang deleted functions bugged
From: Vicente J. Botet Escriba (vicente.botet_at_[hidden])
Date: 2013-10-27 22:13:42

Le 28/10/13 02:45, Jonathan Wakely a écrit :
> On 28 October 2013 00:12, Vicente J. Botet Escriba wrote:
>> Boost.Thread defines a private constructor when
>> BOOST_NO_CXX11_DELETED_FUNCTIONS is defined and in this case there is no
>> compiler error.
> That might be true, but that is not sufficient to conclude that clang
> doesn't support deleted functions!
>
> The stackoverflow question you linked to is years old and Howard's
> answer is wrong (but Johannes's comments on that answer are correct,
> and agree with what Peter already said.)
>
> The stack trace shows that std::vector is trying to copy the element,
> not move it.
>
> My guess would be that boost::thread's move constructor is not
> noexcept, so the libc++ std::vector refuses to use a move when
> inserting, and falls back to a copy instead, which fails. That is the
> correct, standard behaviour for std::vector. If my guess is correct
> you should make the move constructor noexcept.
>
How is it that when I define the boost::thread constructor private the 
compiler has no issues?
I will check for noexcept.

Best,
Vicente