2010-03-02  Paolo Carlini  <paolo.carlini@oracle.com>

	* include/std/bitset (_Base_bitset<>::_M_getdata()): Add.
	(hash<_GLIBCXX_STD_D::bitset<_Nb>>): Add, use the latter.
	* include/debug/bitset (hash<std::__debug::bitset<_Nb>>): Add.
	* include/profile/bitset (hash<std::__profile::bitset<_Nb>>): Likewise.
	* testsuite/23_containers/bitset/hash/1.cc: New.