https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64135
--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Jonathan Wakely <r...@gcc.gnu.org>: https://gcc.gnu.org/g:fe9571a35db53e5203326f854f73e432691d67f6 commit r12-5873-gfe9571a35db53e5203326f854f73e432691d67f6 Author: Jonathan Wakely <jwak...@redhat.com> Date: Wed Dec 1 17:56:23 2021 +0000 libstdc++: Fix non-reserved name in std::allocator base class [PR64135] The possible base classes of std::allocator are new_allocator and malloc_allocator, which both cause a non-reserved name to be declared in every program that includes the definition of std::allocator. This is non-conforming. This change replaces __gnu_cxx::new_allocator with std::__new_allocator which is identical except for using a reserved name. The non-standard extension __gnu_cxx::new_allocator is preserved as a thin wrapper over std::__new_allocator. There is no problem with the extension using a non-reserved name now that it's not included by default in other headers. The same change could be done to __gnu_cxx::malloc_allocator but as it's not the default configuration it can wait. libstdc++-v3/ChangeLog: PR libstdc++/64135 * config/allocator/new_allocator_base.h: Include <bits/new_allocator.h> instead of <ext/new_allocator.h>. (__allocator_base): Use std::__new_allocator instead of __gnu_cxx::new_allocator. * doc/xml/manual/allocator.xml: Document new default base class for std::allocator. * doc/xml/manual/evolution.xml: Likewise. * doc/html/*: Regenerate. * include/Makefile.am: Add bits/new_allocator.h. * include/Makefile.in: Regenerate. * include/experimental/memory_resource (new_delete_resource): Use std::__new_allocator instead of __gnu_cxx::new_allocator. * include/ext/new_allocator.h (new_allocator): Derive from std::__new_allocator. Move implementation to ... * include/bits/new_allocator.h: New file. * testsuite/20_util/allocator/64135.cc: New test.
