How to call external C++ function from Matlab

3 次查看（过去 30 天）
Cheng Lyu
Cheng Lyu 2019-6-3
编辑： sjhstone 2019-7-18
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

请先登录，再回答此问题。

回答（2 个）

Sean de Wolski
Sean de Wolski 2019-6-3
Starting in 19a, you can call C++ libraries directly in MATLAB: https://www.mathworks.com/help/releases/R2019a/matlab/call-cpp-library-functions.html
Bobbie WU
Bobbie WU 2019-6-20
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.
  2 个评论
sjhstone
sjhstone 2019-7-2
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.
sjhstone
sjhstone 2019-7-18
编辑：sjhstone 2019-7-18
The xml files are located at
[matlabroot '/bin/maci64/mexopts']

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 C Shared Library Integration 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by