#define	mpdighi  (mpdigit)((ulong)1<<(Dbits-1))#define DIGITS(x) ((Dbits - 1 + (x))/Dbits) // for converting between int's and mpint's#define MAXUINT ((uint)-1)#define MAXINT (MAXUINT>>1)#define MININT (MAXINT+1) // for converting between vlongs's and mpint's#define MAXUVLONG (~(uvlong)0)#define MAXVLONG (MAXUVLONG>>1)#define MINVLONG (MAXVLONG+(uvlong)1)