[Bug libstdc++/113704] std::locale::locale<Facet>(const locale&, Facet*) is inefficient

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113704

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2024-07-10
     Ever confirmed|0                           |1

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
We could add a new _Impl constructor that takes a facet::id as an argument, and
ensures the array it allocates has room for that id. That will ensure that
_M_install_facet doesn't need to reallocate and so is efficient.