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Contents
/*
* 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 THETA_COMPARATORS_HPP_
#define THETA_COMPARATORS_HPP_
namespace datasketches {
template<typename ExtractKey>
struct compare_by_key {
template<typename Entry1, typename Entry2>
bool operator()(Entry1&& a, Entry2&& b) const {
return ExtractKey()(std::forward<Entry1>(a)) < ExtractKey()(std::forward<Entry2>(b));
}
};
// less than
template<typename Key, typename Entry, typename ExtractKey>
class key_less_than {
public:
explicit key_less_than(const Key& key): key(key) {}
bool operator()(const Entry& entry) const {
return ExtractKey()(entry) < this->key;
}
private:
Key key;
};
} /* namespace datasketches */
#endif
Version data entries
19 entries across 19 versions & 1 rubygems