/*
bigint.h - Manage big positive integer numbers
Copyright (c) 1996 Martin Schulze
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
$Id$
*/
/*
* 4294967295 is max (unsigned long int)
*/
#ifndef _BIGINT_H_
#define _BIGINT_H_
#define BIGINT_LEN 2
#define BIGINT_MAX 1000000000
#define BIGINT_PREC 9
typedef struct
{
unsigned long int val[BIGINT_LEN];
} bigint;
bigint bigint_add(bigint a, bigint b);
bigint bigint_sub(bigint a, bigint b);
bigint bigint_int(int num);
bigint bigint_string(char *s);
void bigint_sprintf (char *res, char *format, bigint a);
/* compares two bigints
a < b => -1
a > b => 1
a == b => 0
*/
int bigint_cmp(bigint a, bigint b);
#endif /* _BIGINT_H_ */