Call a mex file and using coder

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Michael 2012-7-31

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https://ww2.mathworks.cn/matlabcentral/answers/44982-call-a-mex-file-and-using-coder

I have some legacy Matlab code which makes a call to a mex file, call it get_score. The mex file was written in C. This Matlab code was then compiled to C using the mcc command. This was all done on an older version of Matlab.

We are now upgrading to the latest version of Matlab so I will be using Matlab Coder to generate C code from our Matlab code. What is the correct way to call the get_score mex file? I tried running mex on the c code and generating a new mexw32 file and calling that but when I attempt to run coder I get the error Unsupported file extension 'mexw32'.

Is the proper way to do this just compile the C code to a standard dll using, say Visual Studio, and then call the dll using coder.ceval?

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Answer 1

Ryan G 2012-7-31

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https://ww2.mathworks.cn/matlabcentral/answers/44982-call-a-mex-file-and-using-coder#answer_55104

编辑：Ryan G 2012-7-31

The thing about mex files is they require MATLAB to run (MATLAB executable). MATLAB coder can generate more generic c-code that can be utilized independent of MATLAB so if you try to call a mex-file from this code you may run into issues.

It sounds like you already know what to do and you can use the ceval command directly on the C-code that the mex file utilizes.