util/gdss/lib/crypto/bignum/h/BigZ.h

   1 /* Copyright     Digital Equipment Corporation & INRIA     1988, 1989 */
   2 /* Last modified_on Thu Mar 22 21:29:09 GMT+1:00 1990 by shand */
   3 /*      modified_on Mon Jan 23 18:38:46 GMT+1:00 1989 by herve */
   4
   5 /* BigZ.h: Types and structures for clients of BigZ */
   6
   7
   8                         /* BigZ sign */
   9
  10
  11 #define BZ_PLUS                         1
  12 #define BZ_ZERO                         0
  13 #define BZ_MINUS                        -1
  14 #define BzSign                          BigNumCmp
  15
  16
  17                         /* BigZ compare result */
  18
  19
  20 #define BZ_LT                           BN_LT
  21 #define BZ_EQ                           BN_EQ
  22 #define BZ_GT                           BN_GT
  23 #define BzCmp                           BigNumCmp
  24
  25
  26                         /* BigZ number */
  27
  28 #ifndef BIGNUM
  29 #include "BigNum.h"
  30 #endif
  31
  32 struct BigZHeader
  33 {
  34     unsigned long                       Size;
  35     BzSign                              Sign;
  36 };
  37
  38
  39 struct BigZStruct
  40 {
  41     struct BigZHeader                   Header;
  42     BigNumDigit                         Digits [16];
  43 };
  44
  45
  46 typedef struct BigZStruct *             BigZ;
  47
  48 /*\f*/
  49
  50
  51                 /*********** macros of bz.c **********/
  52
  53
  54 #define BzGetSize(z)                    ((z)->Header.Size)
  55 #define BzGetSign(z)                    ((z)->Header.Sign)
  56
  57 #define BzSetSize(z,s)                  (z)->Header.Size = s
  58 #define BzSetSign(z,s)                  (z)->Header.Sign = s
  59
  60 #define BzGetOppositeSign(z)            (-(z)->Header.Sign)
  61
  62
  63                 /*********** functions of bz.c **********/
  64
  65 extern void             BzInit                  ();
  66 extern void             BzClose                  ();
  67
  68 extern BigZ             BzCreate                ();
  69 extern void             BzFree                  ();
  70 extern void             BzFreeString            ();
  71
  72 extern unsigned         BzNumDigits             ();
  73
  74 extern BigZ             BzCopy                  ();
  75 extern BigZ             BzNegate                ();
  76 extern BigZ             BzAbs                   ();
  77 extern BzCmp            BzCompare               ();
  78
  79 extern BigZ             BzAdd                   ();
  80 extern BigZ             BzSubtract              ();
  81 extern BigZ             BzMultiply              ();
  82 extern BigZ             BzDivide                ();
  83 extern BigZ             BzDiv                   ();
  84 extern BigZ             BzMod                   ();
  85
  86 extern BigZ             BzFromString            ();
  87 extern char *           BzToString              ();
  88
  89 extern BigZ             BzFromInteger           ();
  90 extern int              BzToInteger             ();
  91
  92 extern BigZ             BzFromBigNum            ();
  93 extern BigNum           BzToBigNum              ();
  94
  95                 /*********** functions of bzf.c **********/
  96
  97 extern BigZ             BzFactorial             ();