[cfe-dev] clang fails to compile gcc 4.8's <unordered_map>
zeratul976 at hotmail.com
Thu May 31 10:44:48 PDT 2012
> 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>>
> 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
I filed http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53543
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