How to call external C++ function from Matlab
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I'm trying to call an external C++ function from Matlab to make it run faster.
I tried "coder.ceval", and got ERROR "The coder.ceval function is not supported in MATLAB"
I then tried "mex foo.cpp", and got ERROR "xcrun: error: SDK "macosx10.14.4" cannot be located"
I'm using "MacOS Mojave 10.14.5"
Does anybody know how to call C++ function from Matlab? Thank you sooooo much! I'm already driven crazy by this. T_T
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Sean de Wolski
il 3 Giu 2019
Starting in 19a, you can call C++ libraries directly in MATLAB: https://www.mathworks.com/help/releases/R2019a/matlab/call-cpp-library-functions.html
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Bobbie WU
il 20 Giu 2019
I came across the same issue. Apparently, the mex command cannot find the SDK. I think the reason is that the SDK version has too much details (i.e. the 10.14.4 version number is unnecessary.)
To allow matlab to correctly locate the SDK, try the following command
mex SDKVER= foo.cpp
This basically sets the SDK version to null. It worked for me, hope that helps.
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sjhstone
il 2 Lug 2019
Thanks for this easy fix! From my experience with MEX on Windows, some xml files must contain a specific SDK version target but it would a lot more complicated to modify the xml file that comes with MATLAB.
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