2009-10-15 Benjamin Kosnik <bkoz@redhat.com>

2009-10-15  Benjamin Kosnik  <bkoz@redhat.com>

	PR libstdc++/40654
	PR libstdc++/40826
	* src/atomic.cc (atomic_flag_test_and_set_explicit): Add
	static_cast from base to derived.
	(atomic_flag_clear_explicit): Same.
	* include/bits/atomic_2.h (__atomic2::atomic_flag): Public derivation.
	Remove value type constructor.
	* include/bits/atomic_0.h (__atomic0::atomic_flag): Same.
	* include/std/future (_Future_state): Use ATOMIC_FLAG_INIT to
	initialized the atomic_flag member.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@152895 138bc75d-0d04-0410-961f-82ee72b054a4