Struct BigInt 

pub struct BigInt { /* private fields */ }

Dynamic-length BigInt.

This type uses heap allocation and can grow up to max_limbs. It enforces canonical form (no leading zeros, zero sign rules).

Implementations

impl BigInt

pub fn new(max_limbs: usize) -> Self

Create a new BigInt with the specified maximum limb count.

pub fn from_u64(value: u64, max_limbs: usize) -> Self

Create a BigInt from a u64 value.

pub fn from_limbs(limbs: &[Limb], max_limbs: usize) -> Result<Self>

Create a BigInt from a slice of limbs.

The limbs are assumed to be in little-endian order.

pub fn max_limbs(&self) -> usize

Get the maximum number of limbs.

pub fn ensure_capacity(&mut self, n: usize) -> Result<()>

Ensure capacity for at least n limbs.

Trait Implementations

impl BigIntCore for BigInt

Available on crate feature alloc only.

fn limb_count(&self) -> usize

Get the number of limbs.

fn limbs(&self) -> &[Limb]

Get a reference to the limbs.

fn limbs_mut(&mut self) -> &mut [Limb]

Get a mutable reference to the limbs.

fn sign(&self) -> bool

Get the sign bit (false = positive, true = negative).

fn set_sign(&mut self, sign: bool)

Set the sign bit.

fn canonicalize(&mut self) -> Result<()>

Ensure canonical form.

fn is_zero(&self) -> bool

Check if the value is zero.

impl Clone for BigInt

fn clone(&self) -> BigInt

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for BigInt

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.