2007-12-25  Paolo Carlini  <pcarlini@suse.de>

	* include/tr1_impl/hashtable_policy.h (__lower_bound): Add.
	(_Prime_rehash_policy::_M_next_bkt, _M_bkt_for_elements,
	_M_need_rehash): Use __lower_bound.
	* include/std/unordered_map: Do not include the whole <algorithm>,
	include <bits/stl_algobase.h>.
	* include/std/unordered_set: Likewise.
	* include/tr1/unordered_map: Likewise.
	* include/tr1/unordered_set: Likewise.

From-SVN: r131170