Can I use a Matlab function in a S-Function-Builder?

I have this function with the input T0 and output J. I would like to use the Matlab function "dips" like this:

      mexCallMATLAB(0, NULL, 1, T0, "disp");

I don't have any compiling errors, however everytime I run the function Matlab crashes. What did I do wrong? I tried to cast it like this:

mexCallMATLAB(0, NULL, 1, (mxArray *)T0, "disp");

but it did not work.

Thanks for your help. Andrea

Answer 1

[Kaustubha Govind]

I'm assuming T0 here is either an input/output signal or parameter? These are usually pointers of a built-in C type (like real_T*), so you cannot force a cast to mxArray*. You need to construct the mxArray using one of mxArray creation functions.