1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
|
#ifndef _BIGNUM_H_
#define _BIGNUM_H_
#include "internal.h"
typedef struct big_struct bignum;
#define BIG_SIGN_0 0
#define BIG_SIGN_PLUS 1
#define BIG_SIGN_MINUS -1
#define BIG_OK 0
#define BIG_MEMERR 1
#define BIG_DIV_ZERO 2
#define BIG_ARGERR 3
#ifdef BIG_SHORT_NAMES
#define big_set_big big_sb
#define big_set_long big_sl
#define big_set_ulong big_usl
#define big_string big_rs
#define big_leqp big_lq
#define big_expt big_x
#endif
/* External variables to take care about when using the bignums */
typedef int bigerr_t;
extern int big_errno;
extern char *big_end_string;
/* External functions to enable use of bignums */
extern bigerr_t big_init_pkg(void);
extern void big_release_pkg(void);
extern bigerr_t big_create(bignum *a);
extern void big_destroy(bignum *a);
extern unsigned long big_bitcount(bignum *a);
extern bigerr_t big_set_big(bignum *a, bignum *b);
extern void big_set_long(long n, bignum *a);
extern void big_set_ulong(unsigned long n, bignum *a);
extern bigerr_t big_set_string(char *numstr, int base, bignum *a);
extern int big_long(bignum *a, long *n);
extern int big_ulong(bignum *a, unsigned long *n);
extern char *big_string(bignum *a, int base);
extern int big_sign(bignum *a);
extern bigerr_t big_abs(bignum *a, bignum *b);
extern bigerr_t big_negate(bignum *a, bignum *b);
extern int big_compare(bignum *a, bignum *b);
extern int big_lessp(bignum *a, bignum *b);
extern int big_leqp(bignum *a, bignum *b);
extern int big_equalp(bignum *a, bignum *b);
extern int big_geqp(bignum *a, bignum *b);
extern int big_greaterp(bignum *a, bignum *b);
extern int big_zerop(bignum *a);
extern int big_evenp(bignum *a);
extern int big_oddp(bignum *a);
extern bigerr_t big_add(bignum *a, bignum *b, bignum *c);
extern bigerr_t big_sub(bignum *a, bignum *b, bignum *c);
extern bigerr_t big_mul(bignum *a, bignum *b, bignum *c);
extern bigerr_t big_trunc(bignum *a, bignum *b, bignum *c, bignum *r);
extern bigerr_t big_floor(bignum *a, bignum *b, bignum *c, bignum *r);
extern bigerr_t big_ceil(bignum *a, bignum *b, bignum *c, bignum *r);
extern bigerr_t big_round(bignum *a, bignum *b, bignum *c, bignum *r);
extern bigerr_t big_random(bignum *a, bignum *b);
extern bigerr_t big_expt(bignum *a, unsigned long z, bignum *x);
extern bigerr_t big_exptmod(bignum *a_in, bignum *z_in, bignum *n, bignum *x);
extern bigerr_t big_gcd(bignum *a, bignum *b, bignum *g);
#ifndef NULL
#define NULL 0
#endif
#endif /* _BIGNUM_H_ */
|
