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 LIBPANDABASE_UTILS_RANGE_H 17 #define LIBPANDABASE_UTILS_RANGE_H 18 19 namespace panda { 20 21 template <class It> 22 class Range { 23 public: Range(It begin,It end)24 Range(It begin, It end) : begin_(begin), end_(end) {} 25 begin()26 It begin() 27 { 28 return begin_; 29 } 30 end()31 It end() 32 { 33 return end_; 34 } 35 size()36 size_t size() const 37 { 38 return std::distance(begin_, end_); 39 } 40 41 private: 42 It begin_; 43 It end_; 44 }; 45 46 } // namespace panda 47 48 #endif // LIBPANDABASE_UTILS_RANGE_H 49