void cvRandArr(CvRNG* rng, CvArr* arr, int dist_type, CvScalar param1, CvScalar param2) {
    void *fptr;

    fptr = dlsym(_Chcv_handle, "cvRandArr_chdl");
    if(fptr == NULL) {
        fprintf(_stderr, "Error: %s(): dlsym(): %s\n", __func__,  dlerror());
        return;
    }
    dlrunfun(fptr, NULL, cvRandArr, rng, arr, dist_type, param1, param2);
}
