Structure array to MATLAB object array
0 if successful, and nonzero otherwise. One cause of failure is that array_ptr is not a structure mxArray. Call mxIsStruct to determine whether array_ptr is a structure.
mxSetClassName converts a structure array to an object array, to be saved subsequently to a MAT-file. The object is not registered or validated by MATLAB® software until it is loaded via the LOAD command. If the specified classname is an undefined class within MATLAB, LOAD converts the object back to a simple structure array.