/* * Copyright (c) 2021 Huawei Device Co., Ltd. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #ifndef STRING_UTILS_H #define STRING_UTILS_H #include #include #include "securec.h" namespace OHOS { namespace Rosen { static constexpr HiviewDFX::HiLogLabel TAG = { LOG_CORE, 0, "StringUtils" }; constexpr int STRING_BUFFER_SIZE = 4096; template void AppendFormat(std::string& out, const char* fmt, Args&& ... args) { char buf[STRING_BUFFER_SIZE] = {0}; int len = ::snprintf_s(buf, sizeof(buf), sizeof(buf)-1, fmt, args...); if (len <= 0) { HiviewDFX::HiLog::Error(TAG, "failed to execute snprintf."); return; } out += buf; } } } #endif