20001017-1.c

this is a gcc file, you can download it and learn its usetility, for further detail please look at t

 
void bug (double *Cref, char transb, int m, int n, int k,
	  double a, double *A, int fdA, double *B, int fdB,
	  double b, double *C, int fdC)
{
  if (C != Cref) abort ();
}
 
int main (void)
{
  double A[1], B[1], C[1];
   
  bug (C, 'B', 1, 2, 3, 4.0, A, 5, B, 6, 7.0, C, 8);
   
  return 0;
}