xnum.h

#ifndef XNUM_H
#define XNUM_H
#include "xmath.h"

/* STUFF FOR BIGINT */
#define MAX_COL 100
#define COL_SZ 100000000
#define PADSTR "%08llu"
typedef unsigned long long int lli;


typedef struct num {
  lli valz[MAX_COL];
  int right;
  int val;
  int signal; //plus or minus 1
} num;


/* c = 0 */
void num_init(num *c);
/* c = a */
void num_init_d(num *c, int a);
/* prints a */
void num_print(num *a);
/* c = a */
void num_copy(num *a, num *c);
/* swaps a and b */
void num_swap(num *a, num *b);


/* c = a + b */
void num_add(num *a, num *b, num *c);
/* c = a - b */
void num_sub(num *a, num *b, num *c);
/* c = a * b */
void num_mult(num *a, num *b, num *c);

/* return 0 if (a==b)
   return 1 if (a>b)
   return -1 if (a<b)
 */
int num_cmp(num *a, num *b);
int num_cmp_abs(num *a, num *b);
#endif