Struct accumulator::uint::U256

pub struct U256 { /* fields omitted */ }

Methods

impl U256

pub fn zero() -> Self

pub fn is_zero(&self) -> bool

pub fn one() -> Self

pub fn is_odd(&self) -> bool

pub fn mod_inv(self, m: &Self) -> Option<Self>

Panics if m == 0.

pub fn pow_mod(self, e: Self, m: &Self) -> Self

Panics if m == 0.

pub fn is_perfect_square(&self) -> bool

pub fn jacobi(a: i32, b: &Self) -> i32

pub fn is_congruent(self, i: i32, m: &Self) -> bool

pub fn is_divisible_u(&self, u: u64) -> bool

pub fn write_binary(&self, buf: &mut [u8]) -> usize

Panics if buf is not large enough.

pub fn from_be_bytes(bytes: &[u8]) -> Self

impl U256

pub fn remove_factor(self, f: Self) -> (Self, u64)

Returns (result of removing all fs, number of fs removed)

Trait Implementations

impl Eq for U256

impl Copy for U256

impl PartialOrd<U256> for U256

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

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

#[must_use]

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

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

#[must_use]

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

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

#[must_use]

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

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

#[must_use]

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 PartialEq<U256> for U256

fn eq(&self, other: &U256) -> bool

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

fn ne(&self, other: &U256) -> bool

This method tests for !=.

impl PartialEq<u64> for U256

fn eq(&self, u: &u64) -> bool

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

#[must_use]

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

This method tests for !=.

impl From<[u64; 4]> for U256

fn from(limbs: [u64; 4]) -> Self

Performs the conversion.

impl From<u64> for U256

fn from(x: u64) -> Self

Performs the conversion.

impl From<[u8; 32]> for U256

Lower-endian bytes.

fn from(bytes: [u8; 32]) -> Self

Performs the conversion.

impl<'_> From<&'_ [u8; 32]> for U256

Lower-endian bytes.

fn from(bytes: &[u8; 32]) -> Self

Performs the conversion.

impl From<U256> for Integer

fn from(x: U256) -> Self

Performs the conversion.

impl<'_> From<&'_ U256> for U512

fn from(x: &U256) -> Self

Performs the conversion.

impl From<U256> for U512

fn from(x: U256) -> Self

Performs the conversion.

impl Ord for U256

fn cmp(&self, x: &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.

impl Clone for U256

fn clone(&self) -> U256

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for U256

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

Formats the value using the given formatter.

impl Add<U256> for U256

type Output = Self

Panics if result overflows.

fn add(self, x: Self) -> Self

Performs the + operation.

impl Add<u64> for U256

type Output = Self

The resulting type after applying the + operator.

fn add(self, x: u64) -> Self

Panics if result overflows.

impl Sub<U256> for U256

type Output = Self

The resulting type after applying the - operator.

fn sub(self, x: Self) -> Self

Panics if result is negative.

impl Sub<u64> for U256

type Output = Self

The resulting type after applying the - operator.

fn sub(self, x: u64) -> Self

Panics if result is negative.

impl<'_> Sub<u64> for &'_ U256

type Output = U256

The resulting type after applying the - operator.

fn sub(self, x: u64) -> U256

Panics if result is negative.

impl<'_> Mul<&'_ U256> for U256

It turns out to be faster to provide multiplication as U256 * U256 -> U512, because it lets us use mpn_mul_n instead of mpn_mul.

type Output = U512

The resulting type after applying the * operator.

fn mul(self, x: &Self) -> U512

Performs the * operation.

impl Mul<U256> for U256

type Output = U512

The resulting type after applying the * operator.

fn mul(self, x: Self) -> U512

Performs the * operation.

impl<'_> Div<&'_ U256> for U256

type Output = Self

The resulting type after applying the / operator.

fn div(self, x: &Self) -> Self

Performs the / operation.

impl Div<U256> for U256

type Output = Self

The resulting type after applying the / operator.

fn div(self, x: Self) -> Self

Performs the / operation.

impl<'_> Rem<&'_ U256> for U256

type Output = Self

The resulting type after applying the % operator.

fn rem(self, x: &Self) -> Self

Performs the % operation.

impl Rem<U256> for U256

type Output = Self

The resulting type after applying the % operator.

fn rem(self, x: Self) -> Self

Performs the % operation.

impl<'_> Rem<&'_ U256> for U512

type Output = U256

The resulting type after applying the % operator.

fn rem(self, x: &U256) -> U256

Performs the % operation.

impl Rem<U256> for U512

type Output = U256

The resulting type after applying the % operator.

fn rem(self, x: U256) -> U256

Performs the % operation.

impl AddAssign<U256> for U256

fn add_assign(&mut self, x: Self)

Panics if result overflows.

impl SubAssign<U256> for U256

fn sub_assign(&mut self, x: Self)

Panics if result is negative.

impl<'_> RemAssign<&'_ U256> for U256

fn rem_assign(&mut self, x: &Self)

Performs the %= operation.

impl RemAssign<U256> for U256

fn rem_assign(&mut self, x: Self)

Performs the %= operation.

impl Shl<u32> for U256

type Output = Self

The resulting type after applying the << operator.

fn shl(self, x: u32) -> Self

Performs the << operation.

impl Shr<u32> for U256

type Output = Self

The resulting type after applying the >> operator.

fn shr(self, x: u32) -> Self

Performs the >> operation.

impl ShlAssign<u32> for U256

fn shl_assign(&mut self, x: u32)

Performs the <<= operation.

impl ShrAssign<u32> for U256

fn shr_assign(&mut self, x: u32)

Performs the >>= operation.

impl Hash for U256

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].