This is a backport of r14-739-gc62e945492afbb to keep the exported
symbol list consistent between trunk and gcc-13. The new assertions from
that commit are not part of this backport.
libstdc++-v3/ChangeLog:
* config/abi/pre/gnu.ver: Export basic_string::_S_allocate.
* include/bits/basic_string.h: (basic_string::_Alloc_traits_impl):
Remove class template.
(basic_string::_S_allocate): New static member function.
(basic_string::assign): Use _S_allocate.
* include/bits/basic_string.tcc (basic_string::_M_create)
(basic_string::reserve, basic_string::_M_replace): Likewise.
(cherry picked from commit c62e945492afbbd2a09896fc7b0b07f7e719a606)
Jonathan Wakely
0d5a359140