COMPLEMENT48      106 net/dccp/dccp.h #define TO_SIGNED48(x)	 (((x) < INT48_MIN)? (x) : -COMPLEMENT48( (x)))
COMPLEMENT48      107 net/dccp/dccp.h #define TO_UNSIGNED48(x) (((x) >= 0)?	     (x) :  COMPLEMENT48(-(x)))
COMPLEMENT48      109 net/dccp/dccp.h #define SUB48(a, b)	 ADD48((a), COMPLEMENT48(b))