+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.
+
2007-12-24 Paolo Carlini <pcarlini@suse.de>
* testsuite/20_util/tuple/cons/big_tuples.cc: New.
return __distance_fw(__first, __last, _Tag());
}
+ template<typename _RAIter, typename _Tp>
+ _RAIter
+ __lower_bound(_RAIter __first, _RAIter __last, const _Tp& __val)
+ {
+ typedef typename std::iterator_traits<_RAIter>::difference_type _DType;
+
+ _DType __len = __last - __first;
+ while (__len > 0)
+ {
+ _DType __half = __len >> 1;
+ _RAIter __middle = __first + __half;
+ if (*__middle < __val)
+ {
+ __first = __middle;
+ ++__first;
+ __len = __len - __half - 1;
+ }
+ else
+ __len = __half;
+ }
+ return __first;
+ }
// Auxiliary types used for all instantiations of _Hashtable: nodes
// and iterators.
_Prime_rehash_policy::
_M_next_bkt(std::size_t __n) const
{
- const unsigned long* __p = std::lower_bound(__prime_list, __prime_list
- + _S_n_primes, __n);
+ const unsigned long* __p = __lower_bound(__prime_list, __prime_list
+ + _S_n_primes, __n);
_M_next_resize =
static_cast<std::size_t>(__builtin_ceil(*__p * _M_max_load_factor));
return *__p;
_M_bkt_for_elements(std::size_t __n) const
{
const float __min_bkts = __n / _M_max_load_factor;
- const unsigned long* __p = std::lower_bound(__prime_list, __prime_list
- + _S_n_primes, __min_bkts);
+ const unsigned long* __p = __lower_bound(__prime_list, __prime_list
+ + _S_n_primes, __min_bkts);
_M_next_resize =
static_cast<std::size_t>(__builtin_ceil(*__p * _M_max_load_factor));
return *__p;
{
__min_bkts = std::max(__min_bkts, _M_growth_factor * __n_bkt);
const unsigned long* __p =
- std::lower_bound(__prime_list, __prime_list + _S_n_primes,
- __min_bkts);
+ __lower_bound(__prime_list, __prime_list + _S_n_primes,
+ __min_bkts);
_M_next_resize = static_cast<std::size_t>
(__builtin_ceil(*__p * _M_max_load_factor));
return std::make_pair(true, *__p);