git: 9front

ref: e3b871cf9cd154c431e5ceed3e73c79477c78df1
dir: /sys/src/libmp/port/dat.h/

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#define	mpdighi  (mpdigit)(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 (~0ULL)
#define MAXVLONG (MAXUVLONG>>1)
#define MINVLONG (MAXVLONG+1ULL)