Big-Number

t_bignum is a structure that can hold any size integer within (-inf, inf). It stores decimal digits in a string, with the lower power digits at lower indices and the higher power digits at higher indices. Math operations are provided on t_bignum's.

BIGNUM Functions

Constructor

• t_bignum *bignum_init(char *number)

Conditional "Operators"

All the functions here take two t_bignum * as arguments and return 0 for true, 1 for false.

• bignum_gt
• bignunm_lt
• bignum_eq

Arithmetic Operators

All the functions here take two t_bignum * as arguments and return the result of the requested arithmetic operation as a newly malloc'd t_bignum *.

• bignum_add
• bignum_minus
• bignum_multiply
• bignum_divide
• bignum_mod

Destructor

• bignum_del(t_bignum **p)

Utility

• bignum_truc(t_bignum *bignum) returns the bignum with preceeding 0's stripped.
• bignum_swap(t_bignum *a, t_bignum *b) swaps two large integers.
• bignum_increment(t_bignum *n) returns n with an incremented value.
• bignum_decrement(t_bignum *n) returns n with a decremented value.
• bignum_copy(t_bignum *dst, t_bignum *src) returns dst with info from src.

Credits

All code is written by me.