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54 lines
1.5 KiB
54 lines
1.5 KiB
/**
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* Copyright 2019-2020 Huawei Technologies Co., Ltd
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef INC_GRAPH_RANGE_VISTOR_H_
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#define INC_GRAPH_RANGE_VISTOR_H_
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#include <vector>
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template <class E, class O>
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class RangeVistor {
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public:
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using Iterator = typename std::vector<E>::iterator;
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using ConstIterator = typename std::vector<E>::const_iterator;
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RangeVistor(O owner, const std::vector<E> &vs) : owner_(owner), elements_(vs) {}
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~RangeVistor() {}
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Iterator begin() { return elements_.begin(); }
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Iterator end() { return elements_.end(); }
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ConstIterator begin() const { return elements_.begin(); }
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ConstIterator end() const { return elements_.end(); }
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std::size_t size() const { return elements_.size(); }
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bool empty() const { return elements_.empty(); }
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E &at(std::size_t index) { return elements_.at(index); }
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const E &at(std::size_t index) const { return elements_.at(index); }
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private:
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O owner_;
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std::vector<E> elements_;
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};
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#endif // INC_GRAPH_RANGE_VISTOR_H_
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