2010-02-23  Paolo Carlini  <paolo.carlini@oracle.com>

	* include/bits/functional_hash.h (struct _Fnv_hash): Rename
	to _Fnv_hash_base.
	(struct _Fnv_hash): Add, derives from the latter.
	(__hash_combine): Add.
	(hash<float>::operator()(float), hash<double>::operator()(double)):
	Adjust.
	* include/bits/basic_string.h (hash<string>, hash<wstring>,
	hash<u16string>, hash<u32string>): Adjust.
	* src/hash-string-aux.cc: Adjust.
	* src/compatibility-c++0x.cc (hash<error_code>): Use __hash_combine.
	* include/std/system_error (hash<error_code>): Likewise.
	* include/std/thread (struct hash<thread::id>): Add.
	* include/tr1/functional_hash.h : Rename to _Fnv_hash_base.
	(struct _Fnv_hash): Add, derives from the latter.
	(hash<float>::operator()(float), hash<double>::operator()(double)):
	Adjust.
	* testsuite/30_threads/thread/id/hash.cc: New.
	* testsuite/30_threads/thread/cons/assign_neg.cc: Adjust dg-error
	line number.
	* testsuite/30_threads/thread/cons/copy_neg.cc: Likewise.

From-SVN: r157005