| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| #ifndef TUPLE_A_NOT_B_HPP_ |
| #define TUPLE_A_NOT_B_HPP_ |
| |
| #include "tuple_sketch.hpp" |
| #include "theta_set_difference_base.hpp" |
| |
| namespace datasketches { |
| |
| template< |
| typename Summary, |
| typename Allocator = std::allocator<Summary> |
| > |
| class tuple_a_not_b { |
| public: |
| using Entry = std::pair<uint64_t, Summary>; |
| using ExtractKey = pair_extract_key<uint64_t, Summary>; |
| using CompactSketch = compact_tuple_sketch<Summary, Allocator>; |
| using AllocEntry = typename std::allocator_traits<Allocator>::template rebind_alloc<Entry>; |
| using State = theta_set_difference_base<Entry, ExtractKey, CompactSketch, AllocEntry>; |
| |
| explicit tuple_a_not_b(uint64_t seed = DEFAULT_SEED, const Allocator& allocator = Allocator()); |
| |
| /** |
| * Computes the a-not-b set operation given two sketches. |
| * @return the result of a-not-b |
| */ |
| template<typename FwdSketch, typename Sketch> |
| CompactSketch compute(FwdSketch&& a, const Sketch& b, bool ordered = true) const; |
| |
| private: |
| State state_; |
| }; |
| |
| } /* namespace datasketches */ |
| |
| #include "tuple_a_not_b_impl.hpp" |
| |
| #endif |