1/* 2 * Copyright (c) 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 RANDOM_NUMBER_UTILS_H 17#define RANDOM_NUMBER_UTILS_H 18 19#include <string> 20#include <vector> 21 22namespace OHOS { 23namespace Contacts { 24class RandomNumberUtils { 25public: 26 static constexpr int DECIMAL_NUMBER = 10; 27 28 RandomNumberUtils(); 29 ~RandomNumberUtils(); 30 static std::string &Generating(int number); 31}; 32} // namespace Contacts 33} // namespace OHOS 34 35#endif // RANDOM_NUMBER_UTILS_H 36