re PR libstdc++/44480 ([C++0x] Linear performance of begin() in unordered associative containers)
2010-08-31 Paolo Carlini <paolo.carlini@oracle.com> PR libstdc++/44480 * include/bits/hashtable.h (_Hashtable<>::_M_begin_bucket_index): Add, caching the index of the first non-empty bucket. (begin, cbegin): Use it. (_Hashtable<>::_Hashtable(_InputIterator, _InputIterator, ...), _Hashtable(const _Hashtable&), _Hashtable(_Hashtable&&), swap(_Hashtable&), clear): Adjust. (_M_insert_bucket, _M_insert, erase(const_iterator), erase(const key_type&), _M_rehash): Update it. * include/bits/hashtable.h (_Hashtable<>::_M_erase): Remove. (erase(const_iterator)): Inline the latter. From-SVN: r163686
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