MATLAB: Is there any possibility of S-function written in C language calling matlab function library, and if so, then how ? I will appreciate that if someone can tell me.

s-functionsimulink

Is there any possibility of S-function written in C language calling matlab function library, and if so, then how ? I will appreciate that if someone can tell me.

Best Answer

C S-functions are just a special kind of MEX-function, the mexFunction entry-point is defined in simulink.c, which is #included into all S-functions. Please look at the examples in the documentation for mexCallMATLAB for help on converting your C data into mxArrays. Essentially, you need to use one of the mxArray creation functions, and then copy over data from the C variables into the data pointer of the mxArray.

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MATLAB: Zero inputs in C-Mex-function

// 0 inputs, any reasonable number of outputs (scalars 1, 2, ... etc)
#include "mex.h"
void mexFunction(int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[])
{
    int i;
    for( i=0; i<nlhs; i++ ) {
        plhs[i] = mxCreateDoubleScalar(i+1);
    }
}

MATLAB: Include s-function c-code into fortran program

I'm not a FORTRAN programmer, so I can't give advice on the mechanics of interfacing between FORTRAN and C (although that question might be suitable for FORTRAN forums), but you can use the Embedded Coder product to generate Shared Libraries from your Simulink model. Since the generated code is standard C, you can interface the generated library from your FORTRAN code just like any other C shared library.

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MATLAB: Zero inputs in C-Mex-function

MATLAB: Include s-function c-code into fortran program

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