Re: [PATCH] Add std::pointer_traits.

[Paolo Carlini <paolo dot carlini at oracle dot com>]

Hi,
> On 20 July 2010 11:33, Paolo Carlini wrote:
>   
>> Anyway, for sure this work should be absolutely invisible in C++03 mode.
>> At some point, however, we'll have to figure out whether it's better to
>> proceed in the current macro-based way, or just have separate C++03 and
>> C++0x versions of the containers. Lately I'm thinking that everything
>> considered - thus, not just the support for scoped allocators, but also
>> the const_iterator signature changes to many member functions, etc - it
>> can well make sense to simply split the two to separate header files.
>>     
> I've been thinking the same, and also that we should consider putting
> the C++0x versions in an inline namespace, so they mangle to a
> different symbol, so that C++03 std::list and C++0x std::__cxx0x::list
> can co-exist in the same programs and libraries.  I haven't had time
> to experiment with that idea.
>   
Agreed. I'm a bit worried by the tangle of namespaces we can have
together with the various special-modes, like debug-mode and
profile-mode, but I agree we should experiment with that, maybe starting
with something simpler vs the .cc files, like vector. I'll see what I
can do.

Paolo.