1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
|
#include <stdint.h>
#include <stdio.h>
struct cc_bignum {
uint8_t *number; /* Little-endian! */
size_t length;
int is_negative;
};
void cc_bignum_add(struct cc_bignum *n, uint8_t howmuch);
void cc_bignum_mul(struct cc_bignum *out, uint8_t mul);
void cc_bignum_init_bytes(struct cc_bignum *bn, unsigned char *bytes, size_t length);
void cc_bignum_init_string(struct cc_bignum *bn, char *string, size_t length);
void cc_bignum_destroy(struct cc_bignum *bn);
void cc_bignum_copy(struct cc_bignum *out, struct cc_bignum *in);
void cc_bignum_move(struct cc_bignum *out, struct cc_bignum *in);
uint32_t cc_bignum_divide_8bit(struct cc_bignum *n, uint8_t d, struct cc_bignum *out);
void cc_bignum_stringify(struct cc_bignum *bn, char *out, size_t outlen);
size_t cc_bignum_byteify(struct cc_bignum *bn, unsigned char *out, size_t outlen);
int cc_bignum_is_zero(struct cc_bignum *n);
|
