2017-06-12 François Dumont <fdumont@gcc.gnu.org> * include/bits/stl_tree.h (_Rb_tree_impl()): Restore _Node_allocator default init. * testsuite/util/testsuite_allocator.h (__gnu_test::default_init_allocator<>) New. * testsuite/23_containers/set/allocator/default_init.cc: New. * testsuite/23_containers/map/allocator/default_init.cc: New. From-SVN: r249136