passing a structure pointer from C mex file to matlab

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XAXRXTX 2017-3-14

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https://ww2.mathworks.cn/matlabcentral/answers/329735-passing-a-structure-pointer-from-c-mex-file-to-matlab

编辑： XAXRXTX 2017-3-15

Hi,

I m trying to pass a pointer of a static structure from C mex to matlab, this pointer will be used by another C mex function. any help will be much appreciated thanks in advance

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James Tursa 2017-3-14

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https://ww2.mathworks.cn/matlabcentral/answers/329735-passing-a-structure-pointer-from-c-mex-file-to-matlab#answer_258700

The usual hack is to encapsulate the pointer in a MATLAB uint64 variable. I.e., set the data area of a uint64 mxArray to the value of your pointer and pass that variable around. However, you need to be careful that the pointer is indeed valid to use in that other mex routine or it will cause a MATLAB crash.

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James Tursa 2017-3-15

See this link:

https://www.mathworks.com/matlabcentral/answers/75524-returning-and-passing-void-pointers-to-mex-functions?s_tid=answers_rc1-2_p2_MLT

XAXRXTX 2017-3-15

编辑：XAXRXTX 2017-3-15

to be honest I had a trouble to make it working, but your suggestion in the link about adding an option in the input arguments has fixed the problem, thanks again

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