S_FUTURE_CEXPANSION_WTS
#define V_FUTURE_CEXPANSION_WTS(x) ((x) << S_FUTURE_CEXPANSION_WTS)
#define G_FUTURE_CEXPANSION_WTS(x) (((x) >> S_FUTURE_CEXPANSION_WTS) & M_FUTURE_CEXPANSION_WTS)