return the pointer or the structure of C structure in C mex file

Hi

I have a C function inside a mex file that return a large structure ( 110 fields ), and I want to return this structure to matlab , so , my question is how to copy or to return the pointer of the C structure to Matlab ?

thanks in advance

Answer 1

[Guillaume]

You can't, matlab does not understand C structures. You'll have to convert your structure to a matlab structure (which is a very different beast). See mxcreatestructarray and mxsetfield to create matlab structs.

[XAXRXTX]

thanks Guillaume for your answer

so, must I copy each C structure field ( from 0 to 109 ) to its corresponding matlab structure field ? or there is some trick to do that more quickly ?

[James Tursa]

Yes, you need to write code to copy each field one at a time.

[Guillaume]

Unless all the fields are the same type, I don't see any other way but to copy each field one by one I'm afraid.