[cfe-dev] clang fails to compile gcc 4.8's <unordered_map>

[Nathan Ridge]

> Date: Thu, 31 May 2012 02:18:56 -0700 
> From: chandlerc at google.com 
> To: sebastian.redl at getdesigned.at 
> CC: cfe-dev at cs.uiuc.edu 
> Subject: Re: [cfe-dev] clang fails to compile gcc 4.8's <unordered_map> 
>  
> On Thu, May 31, 2012 at 2:15 AM, Sebastian Redl  
> <sebastian.redl at getdesigned.at<mailto:sebastian.redl at getdesigned.at>>  
> wrote: 
> On 31.05.2012 05:59, Nathan Ridge wrote: 
>  > The problem is that GCC uses the following alias template as class scope: 
>  > 
>  > template<typename _Pair> 
>  > using __is_convertible = std::is_convertible<_Pair, value_type>; 
>  > 
>  > but __is_convertible, I am guessing, is a compiler intrinsic in clang. 
>  > 
>  > Is either gcc or clang doing something wrong, or is it just a clash  
> of implementations? 
> It's a clash of implementations. We've had this before, but not with a 
> new GCC version - only with old GCC versions. 
>  > What can be done to resolve this? 
>  > 
> Since GCC 4.8 is not yet released, and Clang versions with the 
> __is_convertible intrinsic are, the best solution would be to politely 
> ask the libstdc++ maintainers to change this name. 
>  
> Please let us know if you do / what the PR is for it? We're likely to  
> hit this as well, and will want to track the progress of getting it  
> resolved. 

I filed http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53543

Regards,
Nate