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Generate code: source code or mex file ?

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Maria
Maria on 31 Jul 2020
Commented: Maria on 5 Aug 2020
Hi,
it has only been a few days since I am dealing with mex files.
I am using Matlab coder. I can convert my original m files without any problems, but now I've got a doubt on which "build type" to choose. I was, without thinking too much, selecting the "Source code". I got the .mexw64, and I run the function name_function_mex in my Matlab code.
I saw now that, based on the description, the source type "MEX" should be more suitable, because it is a compiled code to be run in Matlab. I also tried the "MEX" built type, and the only difference I see is that I get a lot more files in the generated mex-related folder.
So my question is: why did the "source code" work at all in my case? Since it was working in my Matlab code (I could call the name_function_mex function as any other functions), should I still consider the build type "MEX" for some special reason...?

Accepted Answer

Darshan Ramakant Bhat
Darshan Ramakant Bhat on 2 Aug 2020
From your description I am assuming that you are using coder app.
When the "build type" is "Source code" it is not suppose to generate any MEX files. The correct configuration to generate MEX is the "MEX" build type.
I had tried "Source Code" configuration with a simple example, but I did not get any MEX file generated. Please attach the .prj file along with all the input files so that I can try to reproduce this from my end.
  3 Comments
Maria
Maria on 5 Aug 2020
Now is clear! Perfect, now I understood! I will use the MEX build type. Thank you very much!

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