1 /* 2 * Copyright (c) 2024 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 #include "telephony_observer_utils.h" 17 18 namespace OHOS { 19 namespace Telephony { MallocCString(const std::string & origin)20 char* MallocCString(const std::string& origin) 21 { 22 if (origin.empty()) { 23 return nullptr; 24 } 25 auto lenth = origin.length() + 1; 26 char* res = static_cast<char*>(malloc(sizeof(char) * lenth)); 27 if (res == nullptr) { 28 return nullptr; 29 } 30 return std::char_traits<char>::copy(res, origin.c_str(), lenth); 31 } 32 ToUtf8(std::u16string str16)33 std::string ToUtf8(std::u16string str16) 34 { 35 std::wstring_convert<std::codecvt_utf8_utf16<char16_t>, char16_t> convert; 36 // 将std::u16string转换为std::string 37 std::string result = convert.to_bytes(str16); 38 return result; 39 } 40 } 41 }