Future evolution of c++config.h and _GLIBCXX_USE_LONG_LONG

[Gabriel Dos Reis]

Paolo Carlini <pcarlini@suse.de> writes:

| Gabriel Dos Reis wrote:
| 
| >Beside name space issues explained by Matt, I would like to point out
| >that adding or subtracting a virtual function is an ABI change. So is
| >reordering declarations of such beasts.
| >
| Indeed. But, definitely, the bulk of the issue seems in the namespace
| issues,
| aka _GLIBCXX_USE_C99.
| 
| Incidentally, yesterday was wondering whether we could add support for
| long long in locale *without* adding virtuals, f.i., adding only
| num_get::get
| overloads and not adding to the number of num_get::do_get...


I do not understand.  Since we decide to support "long long", why would
be decide not to have the virtual? 

-- Gaby