[PATCH][_GLIBCXX_DEBUG] Improve valid_range check

[François Dumont]

On 11/26/19 9:49 PM, Stephan Bergmann wrote:
> On 26/11/2019 20:07, François Dumont wrote:
>> However I wasn't sure about this syntax before the commit so I had 
>> run the new 2_neg.cc with:
>>
>> make CXXFLAGS=-std=c++98 check-debug
>>
>> and it worked fine and still is !
>>
>> I also try -std=gnu++98 and made sure that pch had been updated by 
>> re-building libstdc++ first. I just can't get the expected 
>> compilation error.
>>
>> Maybe I need to rebuild the whole stuff to get an error...
>
> I saw the error with recent Clang and -std=gnu++98.  Recent GCC indeed 
> seems to give at most a warning.
>
>
Ok, thanks for the feedback, gcc might be more permissive then.

Whatever I committed the fix an hour ago.