123   struct _Settings  struct
125     _AlgorithmStrategy          algorithm_strategy;
127     _SortAlgorithm              sort_algorithm;
128     _PartialSumAlgorithm        partial_sum_algorithm;
129     _MultiwayMergeAlgorithm     multiway_merge_algorithm;
130     _FindAlgorithm              find_algorithm;
132     _SplittingAlgorithm         sort_splitting;
133     _SplittingAlgorithm         merge_splitting;
134     _SplittingAlgorithm         multiway_merge_splitting;
139     _SequenceIndex              accumulate_minimal_n;
142     unsigned int                adjacent_difference_minimal_n;
145     _SequenceIndex              count_minimal_n;
148     _SequenceIndex              fill_minimal_n;
151     double                      find_increasing_factor;
154     _SequenceIndex              find_initial_block_size;
157     _SequenceIndex              find_maximum_block_size;
160     _SequenceIndex              find_sequential_search_size;
163     _SequenceIndex              for_each_minimal_n;
166     _SequenceIndex              generate_minimal_n;
169     _SequenceIndex              max_element_minimal_n;
172     _SequenceIndex              merge_minimal_n;
175     unsigned int                merge_oversampling;
178     _SequenceIndex              min_element_minimal_n;
181     _SequenceIndex              multiway_merge_minimal_n;
184     int                         multiway_merge_minimal_k;
187     unsigned int                multiway_merge_oversampling;
190     _SequenceIndex              nth_element_minimal_n;
193     _SequenceIndex              partition_chunk_size;
197     double                      partition_chunk_share;
200     _SequenceIndex              partition_minimal_n;
203     _SequenceIndex              partial_sort_minimal_n;
207     float                       partial_sum_dilation;
210     unsigned int                partial_sum_minimal_n;
213     unsigned int                random_shuffle_minimal_n;
216     _SequenceIndex              replace_minimal_n;
219     _SequenceIndex              set_difference_minimal_n;
222     _SequenceIndex              set_intersection_minimal_n;
225     _SequenceIndex              set_symmetric_difference_minimal_n;
228     _SequenceIndex              set_union_minimal_n;
231     _SequenceIndex              sort_minimal_n;
234     unsigned int                sort_mwms_oversampling;
237     unsigned int                sort_qs_num_samples_preset;
241     _SequenceIndex              sort_qsb_base_case_maximal_n;
244     _SequenceIndex              transform_minimal_n;
247     _SequenceIndex              unique_copy_minimal_n;
249     _SequenceIndex              workstealing_chunk_size;
254     unsigned long long          L1_cache_size;
279     _GLIBCXX_CONST static const _Settings&  argument
287     _Settings() :  in _Settings()  function