1*67e74705SXin Li #ifndef tokens_between 2*67e74705SXin Li 3*67e74705SXin Li const int pi = 3; 4*67e74705SXin Li 5*67e74705SXin Li #define pi_is_bad 6*67e74705SXin Li 7*67e74705SXin Li #endif 8