1*67e74705SXin Li 2*67e74705SXin Li #undef fabs 3*67e74705SXin Li #define fabs(x) (x) 4*67e74705SXin Li 5*67e74705SXin Li #undef my_fabs 6*67e74705SXin Li #define my_fabs(x) (x) 7