TPARM_2
TPARM_2(plab_norm,
#define TPARM_1(a,b) TPARM_2(a,b,0)
TPARM_2(plab_norm, labnum, text));
result = TPARM_2(value, numbers[1], strings[2]);
result = TPARM_2(value, strings[1], strings[2]);
s = TPARM_2(s, strings[1], strings[2]);
s = TPARM_2(s, numbers[1], strings[2]);