1 /** 2 * Copyright (c) 2021-2022 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef PANDA_LIBPANDABASE_UTILS_RANGE_H_ 17 #define PANDA_LIBPANDABASE_UTILS_RANGE_H_ 18 namespace panda { 19 20 template <class It> 21 class Range { 22 public: Range(It begin,It end)23 Range(It begin, It end) : begin_(begin), end_(end) {} 24 begin()25 It begin() 26 { 27 return begin_; 28 } 29 end()30 It end() 31 { 32 return end_; 33 } 34 size()35 size_t size() const 36 { 37 return std::distance(begin_, end_); 38 } 39 40 private: 41 It begin_; 42 It end_; 43 }; 44 45 } // namespace panda 46 47 #endif 48