Diagnose the Issue
- The error message "'make\_unique' is not a member of 'std'" typically indicates that the version of C++ being used in your firmware project does not support the `make_unique` function. This function was introduced in C++14.
- Check your project's compiler settings to see which C++ standard is being used. This can usually be found in your project's build configuration files or makefiles.
Update Compiler Settings
- If your project is using an older standard, change it to at least C++14. For GCC or Clang, you can add the flag `-std=c++14` to your compiler options.
- For CMake-based projects, you might want to add the following line to your CMakeLists.txt file:
\`\`\`cpp
set(CMAKE_CXX_STANDARD 14)
\`\`\`
- If you're using a different build system, refer to its documentation to find out how to specify the C++ standard.
Consider Compiler Compatibility
- Ensure that your compiler version supports C++14. Versions of GCC 4.9 and above or Clang 3.4 and above are necessary for C++14 features.
- Check the official websites of your compiler for documentation on C++14 support and download the latest version if needed.
Use Alternative Solutions
- If upgrading your compiler or changing the project's C++ version is not feasible, you can manually replicate `make_unique` functionality:
\`\`\`cpp
template
std::unique_ptr make_unique(Args&&... args) {
return std::unique\_ptr(new T(std::forward(args)...));
}
\`\`\`
Add this template in a common header file that is included across your project files.
- Using this, you can continue using `make_unique` in your code without altering the language standard.
Verify and Test
- After making changes, ensure that your project builds successfully and run relevant tests to confirm that behavior has not regressed.
- Consider creating additional tests that explicitly verify the intended use of `unique_ptr` to ensure proper functionality.
