"error Using MATLAB Data API with C Matrix API is not supported."

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Mark Almquist 2023-4-30

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https://ww2.mathworks.cn/matlabcentral/answers/1955559-error-using-matlab-data-api-with-c-matrix-api-is-not-supported

回答： Manoj Mirge 2023-5-16

I wish to use ArrayFactory, but when I include "MatlabDataArray.hpp" in my main cpp I get this error when I do an mbuild using the .so and main cpp.

Under the Library Compiler App, I am compiling a C++ shared library. Under the "API Selection" option | "C++ Shared Library API", regardless of whether I select "Create interfaces that use mwArray API and MATLAB Data API" or ""Create interfaces that use mwArray API", I get this error.

I cannot find mention of this particular error anywhere.

Thanks for any help.

Mark A.

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Answer 1

Manoj Mirge 2023-5-16

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https://ww2.mathworks.cn/matlabcentral/answers/1955559-error-using-matlab-data-api-with-c-matrix-api-is-not-supported#answer_1236674

This error occurs when you try to compile C++ shared library which uses functions from MATLAB Data API and MATLAB C API.It might be possible that you are mixing the functions from MATLAB Data API with functions from MATLAB C API in your library.

The MATLAB Data API supports C++11 features and is not compatible with the C Matrix API or MATLAB C API. You cannot mix functions from the MATLAB Data API with those in the C Matrix API or C MEX API. Likewise, you cannot mix MATLAB Data API functions with functions in the MATLAB Engine API for C or MATLAB C API to Read MAT-File Data in a standalone application.

As a workaround you can migrate all your library code to use only MATLAB Data API. MATLAB Data API uses modern C++ semantics (C++11). This has several advantages over the “mwArray” API, including type-safety, multithread-safety, and copy-on-write semantics.