Portable Big Integer Library

Author: cosh.cage#hotmail.com
License: GPLv3.

Introduction

Portable big integer library(aka: pbint) is intended to provide a set of functions to do arbitrary precision arithmetic jobs. This library is currently divided into 3 parts. There are kernel module, math module and external memory support module. Kernel module supports initializing functions for big integers and add, sub, mul, div functions for basic arithmetic operations. Big number is another type provided by this library. This type is used to conveniently convert big integers between different bases. Math module supports mathematical operations for big integers. External memory module supports to save and load big integers between main memory and files on disks.

Before compiling checklist

Name           Type  File  Line number Operation
BINT_INIT_SIZE Macro pbk.h 23          Alter to suitable value.
BINT_INIT_INCL Macro pbk.h 24          Alter to suitable value.
BNUM_INIT_SIZE Macro pbk.h 26          Alter to suitable value.
BNUM_INIT_INCL Macro pbk.h 27          Alter to suitable value.
_ib            Type  pbk.h 30          Alter to signed platform integer.
_ub            Type  pbk.h 31          Alter to unsigned platform integer.
_idb           Type  pbk.h 32          Alter to signed double sized platform integer.
_udb           Type  pbk.h 33          Alter to unsigned double sized platform integer.

Compilation guide

Just type cc *.c