Committed then.
2013-02-13 François Dumont fdum...@gcc.gnu.org
* include/bits/hashtable_policy.h (_Hash_code_base): Restore
default constructor protected.
* include/bits/hashtable.h: static assert that _Hash_code_base has
a default constructor available through inheritance.
PR libstdc++/56278
* include/bits/hashtable_policy.h (_Hash_code_base): Make default
constructor public.
* testsuite/23_containers/unordered_set/56278.cc: New.
Tested x86_64-linux, committed to trunk.
commit b893384109ddb4dfc1afac24dc6b2c56557f2fa8
Author: Jonathan
