big{
  A_re = (double*)malloc(sizeof(double)*n);
  A_im = (double*)malloc(sizeof(double)*n);
  W_re = (double*)malloc(sizeof(double)*n/2);
  W_im = (double*)malloc(sizeof(double)*n/2);
  assert(A_re != NULL && A_im != NULL && W_re != NULL && W_im != NULL);


  }

  ~big{
    free(A_re);
    free(A_im);
    free(W_re);
    free(W_im);
  }

}
int main(int argc, char *argv[])
{
  big1=big();
  n = 64;

 (i=0; i<10000000; i++) {
    big1.init_array(n, A_re, A_im);
    big1.compute_W(n, W_re, W_im);
    big1.fft(n, A_re, A_im, W_re, W_im);
    big1.permute_bitrev(n, A_re, A_im);
    //output_array(n, A_re, A_im, argv[2]);
  }


  return 0;

}