Device interface library for multiple platforms including Mbed.
Dependents: DeepCover Embedded Security in IoT MaximInterface MAXREFDES155#
Maxim Interface is a library framework focused on providing flexible and expressive hardware interfaces. Both communication interfaces such as I2C and 1-Wire and device interfaces such as DS18B20 are supported. Modern C++ concepts are used extensively while keeping compatibility with C++98/C++03 and requiring no external dependencies. The embedded-friendly design does not depend on exceptions or RTTI.
The full version of the project is hosted on GitLab: https://gitlab.com/iabenz/MaximInterface
MaximInterfaceCore/ChangeSizeType.hpp
- Committer:
- IanBenzMaxim
- Date:
- 2019-09-30
- Revision:
- 10:947d3f44e0a0
- Parent:
- 8:5ea891c7d1a1
File content as of revision 10:947d3f44e0a0:
/******************************************************************************* * Copyright (C) Maxim Integrated Products, Inc., All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included * in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. * * Except as contained in this notice, the name of Maxim Integrated * Products, Inc. shall not be used except as stated in the Maxim Integrated * Products, Inc. Branding Policy. * * The mere transfer of this software does not imply any licenses * of trade secrets, proprietary technology, copyrights, patents, * trademarks, maskwork rights, or any other form of intellectual * property whatsoever. Maxim Integrated Products, Inc. retains all * ownership rights. *******************************************************************************/ #ifndef MaximInterfaceCore_ChangeSizeType_hpp #define MaximInterfaceCore_ChangeSizeType_hpp #include <stdint.h> #include <algorithm> #include <limits> #include "Result.hpp" #include "span.hpp" namespace MaximInterfaceCore { /// @brief /// Adapts functions taking an array pointer and size where the size type is /// nonstandard. /// @tparam NewSize Nonstandard size type. /// @tparam Func Must be callable as func(Data *, NewSize). /// @tparam Data Array element type. /// @param func Callback for processing chunks of data. /// @param data Data to process with callback. template <typename NewSize, typename Func, typename Data> Result<void> changeSizeType(Func func, span<Data> data) { typedef typename span<Data>::index_type DataSize; // Check if NewSize can represent the maximum value of DataSize. if (static_cast<uintmax_t>(std::numeric_limits<DataSize>::max()) > static_cast<uintmax_t>(std::numeric_limits<NewSize>::max())) { DataSize dataIdx = 0; do { const span<Data> chunk = data.subspan( dataIdx, std::min<DataSize>(data.size() - dataIdx, std::numeric_limits<NewSize>::max())); MaximInterfaceCore_TRY( func(chunk.data(), static_cast<NewSize>(chunk.size()))); dataIdx += chunk.size(); } while (dataIdx < data.size()); } else { MaximInterfaceCore_TRY( func(data.data(), static_cast<NewSize>(data.size()))); } return none; } } // namespace MaximInterfaceCore #endif