Re: [PATCH][C++] Fix PR29433, make C++ use a lot less time/memory

[Mark Mitchell <mark at codesourcery dot com>]

Jason Merrill wrote:

>> I believe that special rule applies only if we used "struct" in front of
>> the first "T", e.g.
>>
>>    struct T { };
>>    struct S {
>>       struct T T();
>>    };
>>
>> is valid.
> 
> It also applies before ::, but that also doesn't apply to this case.
> When we see the first T in "T T();" we have no idea that it's supposed
> to be a type-specifier, so we can't look it up specially.

Good point.  I'm not sure if we gate the diagnostic on the use of an
explicit "struct" (or "class", etc.) keyword.

In any case, are you worried about the backwards compatibility issue if
we start issuing errors about the case that Richard G. posted?

-- 
Mark Mitchell
CodeSourcery
mark@codesourcery.com
(650) 331-3385 x713