/*** field2n.h ***/#define WORDSIZE	(sizeof(int)*8)#define NUMBITS		162#define TYPE2#ifdef TYPE2#define field_prime	((NUMBITS<<1)+1)#else#define field_prime (NUMBITS+1)#endif#define	NUMWORD		(NUMBITS/WORDSIZE)#define UPRSHIFT	(NUMBITS%WORDSIZE)#define MAXLONG		(NUMWORD+1)#define MAXBITS		(MAXLONG*WORDSIZE)#define MAXSHIFT	(WORDSIZE-1)#define MSB			(1L<<MAXSHIFT)#define UPRBIT		(1L<<(UPRSHIFT-1))#define UPRMASK		(~(-1L<<UPRSHIFT))#define SUMLOOP(i)	for(i=0; i<MAXLONG; i++)typedef	short int INDEX;typedef unsigned long ELEMENT;typedef struct {	ELEMENT 	e[MAXLONG];}  FIELD2N;