[mexFunction in Matlab] printf() function in C code

If I have a C code that consists of three files, Afun.c, Bfun.c and Cfun.c

int Afun (int argc, char *argv[]){)
{
    Bfun();
    
    
    // ....
    int aa  = 5;
    return aa;
}

void Bfun (void)
{
    Cfun();
}

void Cfun (void)
{
    printf ( "\n This is C function\n");
}

In the mexFunction in Matlab, how can I show the output of printf() of Cfun()? where Afun() is the main function in C code.

void mexFunction(int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[])
{
    
    int argc = 0;
    char **argv;
    int i; result

    argc = nrhs;
    argv = (char **) mxCalloc( argc, sizeof(char *) );
    for (i = 0; i < nrhs; i++){
        argv[i] = mxArrayToString( prhs[i] );
    }
    
    // ..... 

    result = Afun(argc, argv);
    plhs[0] = mxCreateDoubleScalar(result); 

}

Answer 1

[James Tursa]

How you have it written should work, except maybe replace printf( ) with mexPrintf( ). Also, depending on your compiler and settings, you may need to move the Bfun( ) call after the int aa definition. Are you having problems with this not displaying anything?