TPARM_5
#define TPARM_5(a,b,c,d,e,f) tparm(a,TPARM_N(b),TPARM_N(c),TPARM_N(d),TPARM_N(e),TPARM_N(f))
#define TPARM_5(a,b,c,d,e,f) TPARM_6(a,b,c,d,e,f,0)