Struct snarkvm_utilities::biginteger::biginteger::BigInteger256

pub struct BigInteger256(pub [u64; 4]);

Implementations

impl BigInteger256

pub fn new(value: [u64; 4]) -> Self

impl BigInteger256

pub fn from_u128(num: u128) -> Self

pub fn to_u128(&self) -> u128

Trait Implementations

impl AsMut<[u64]> for BigInteger256

fn as_mut(&mut self) -> &mut [u64]

Performs the conversion.

impl AsRef<[u64]> for BigInteger256

fn as_ref(&self) -> &[u64]

Performs the conversion.

impl BigInteger for BigInteger256

fn from_bits_be(bits: Vec<bool>) -> Self

Constructs a BigInteger by parsing a vector of bits in big endian format and transforms it into a vector of little endian u64 elements.

const NUM_LIMBS: usize

The number of limbs used in this BigInteger.

fn add_nocarry(&mut self, other: &Self) -> bool

Add another representation to this one, returning the carry bit.

fn sub_noborrow(&mut self, other: &Self) -> bool

Subtract another representation from this one, returning the borrow bit.

fn mul2(&mut self)

Performs a leftwise bitshift of this number, effectively multiplying it by 2. Overflow is ignored.

fn muln(&mut self, n: u32)

Performs a leftwise bitshift of this number by some amount.

fn div2(&mut self)

Performs a rightwise bitshift of this number, effectively dividing it by 2.

fn divn(&mut self, n: u32)

Performs a rightwise bitshift of this number by some amount.

fn is_odd(&self) -> bool

Returns true iff this number is odd.

fn is_even(&self) -> bool

Returns true iff this number is even.

fn is_zero(&self) -> bool

Returns true iff this number is zero.

fn num_bits(&self) -> u32

Compute the number of bits needed to encode this number. Always a multiple of 64.

fn get_bit(&self, i: usize) -> bool

Compute the i-th bit of self.

fn to_bits_be(&self) -> Vec<bool>

Returns the bit representation of the big integer in a big endian boolean array, without leading zeros.

fn find_wnaf(&self) -> Vec<i64>

Returns a vector for wnaf.

fn to_bits_le(&self) -> Vec<bool>

Returns the bit representation of the big integer in a little endian boolean array, with trailing zeroes.

fn write_le<W: Write>(&self, writer: &mut W) -> IoResult<()>

Writes this BigInteger as a big endian integer. Always writes (num_bits / 8) bytes.

fn read_le<R: Read>(&mut self, reader: &mut R) -> IoResult<()>

Reads a big endian integer occupying (num_bits / 8) bytes into this representation.

impl Clone for BigInteger256

fn clone(&self) -> BigInteger256

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for BigInteger256

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

Formats the value using the given formatter.

impl Default for BigInteger256

fn default() -> BigInteger256

Returns the “default value” for a type.

impl Display for BigInteger256

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

Formats the value using the given formatter.

impl Distribution<BigInteger256> for Standard

fn sample<R: Rng + ?Sized>(&self, rng: &mut R) -> BigInteger256

Generate a random value of T, using rng as the source of randomness.

fn sample_iter<R>(self, rng: R) -> DistIter<Self, R, T> where
    R: Rng, 

Create an iterator that generates random values of T, using rng as the source of randomness.

fn map<F, S>(self, func: F) -> DistMap<Self, F, T, S> where
    F: Fn(T) -> S, 

Create a distribution of values of ‘S’ by mapping the output of Self through the closure F

impl From<u64> for BigInteger256

fn from(val: u64) -> BigInteger256

Performs the conversion.

impl FromBytes for BigInteger256

fn read<R: Read>(reader: R) -> IoResult<Self>

Reads Self from reader.

impl Hash for BigInteger256

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given Hasher.

impl Ord for BigInteger256

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

Restrict a value to a certain interval.

impl PartialEq<BigInteger256> for BigInteger256

fn eq(&self, other: &BigInteger256) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &BigInteger256) -> bool

This method tests for !=.

impl PartialOrd<BigInteger256> for BigInteger256

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl ToBytes for BigInteger256

fn write<W: Write>(&self, writer: W) -> IoResult<()>

Serializes self into writer.

impl Copy for BigInteger256

impl Eq for BigInteger256

impl StructuralEq for BigInteger256

impl StructuralPartialEq for BigInteger256