r211031 - [C++1z] Implement N4051: 'typename' is permitted instead of 'class' when declaring a template template parameter.

[Jordan Rose]

On Jun 19, 2014, at 4:41 , Richard Smith <richard at metafoo.co.uk> wrote:

> On Wed, Jun 18, 2014 at 9:19 AM, Jordan Rose <jordan_rose at apple.com> wrote:
> 
> On Jun 16, 2014, at 8:51 , Richard Smith <richard-llvm at metafoo.co.uk> wrote:
> 
>> +def CXXPre1zCompat : DiagGroup<"c++98-c++11-c++14-compat">;
>> +def CXXPre1zCompatPedantic : DiagGroup<"c++98-c++11-c++14-compat-pedantic",
>> +                                       [CXXPre1zCompat]>;
> 
> I'm not happy with this warning name. Can we say the *compat options are just the newest version? c++14-compat?
> 
> That doesn't work: we want -Wc++11-compat to list all incompatibilities with C++11, including this one.
> 
> My preference is to make this group unnamed, but I don't know if we support that, nor what we'd list in the [-W...] in the diagnostic if we did.

Then how about

-Wpre-c++1z-compat, which is included by -Wc++98-compat, -Wc++11-compat, and -Wc++14-compat.
-Wpost-c++11-compat, which is included by  -Wc++11-compat, -Wc++14-compat, and -Wc++1z-compat.

?

It's not perfect because "post-" doesn't usually include the reference point, but it does provide a very consistent taxonomy.

Jordan

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