Struct U64 

pub struct U64(/* private fields */);

A wrapper around web3’s U64 types for consistency.

Implementations

impl U64

pub fn zero() -> Self

Return zero value.

pub fn as_bytes(&self) -> Vec<u8>

Convert to bytes.

pub fn to_be_bytes(&self) -> Vec<u8>

Convert to big endian bytes.

Methods from Deref<Target = PrimitiveU64>

pub const MAX: U64

pub fn low_u32(&self) -> u32

Conversion to u32

pub fn low_u64(&self) -> u64

Low word (u64)

pub fn as_u32(&self) -> u32

Conversion to u32 with overflow checking

Panics

Panics if the number is larger than 2^32.

pub fn as_u64(&self) -> u64

Conversion to u64 with overflow checking

Panics

Panics if the number is larger than u64::max_value().

pub fn as_usize(&self) -> usize

Conversion to usize with overflow checking

Panics

Panics if the number is larger than usize::max_value().

pub fn is_zero(&self) -> bool

Whether this is zero.

pub fn bits(&self) -> usize

Return the least number of bits needed to represent the number

pub fn bit(&self, index: usize) -> bool

Return if specific bit is set.

Panics

Panics if index exceeds the bit width of the number.

pub fn leading_zeros(&self) -> u32

Returns the number of leading zeros in the binary representation of self.

pub fn trailing_zeros(&self) -> u32

Returns the number of trailing zeros in the binary representation of self.

pub fn byte(&self, index: usize) -> u8

Return specific byte.

Panics

Panics if index exceeds the byte width of the number.

pub fn to_big_endian(&self, bytes: &mut [u8])

Write to the slice in big-endian format.

pub fn to_little_endian(&self, bytes: &mut [u8])

Write to the slice in little-endian format.

pub fn integer_sqrt(&self) -> U64

Compute the highest n such that n * n <= self.

Trait Implementations

impl Add for U64

type Output = U64

The resulting type after applying the + operator.

fn add(self, rhs: U64) -> Self::Output

Performs the + operation.

impl Clone for U64

fn clone(&self) -> U64

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for U64

impl Debug for U64

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

Formats the value using the given formatter.

impl Default for U64

fn default() -> U64

Returns the “default value” for a type.

impl Deref for U64

type Target = U64

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl<'de> Deserialize<'de> for U64

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for U64

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

Formats the value using the given formatter.

impl Eq for U64

impl From<U64> for U256

fn from(num: U64) -> Self

Converts to this type from the input type.

impl From<U64> for U64

fn from(n: PrimitiveU64) -> Self

Converts to this type from the input type.

impl From<U64> for U64

fn from(n: U64) -> Self

Converts to this type from the input type.

impl From<i32> for U64

fn from(n: i32) -> Self

Converts to this type from the input type.

impl From<u32> for U64

fn from(n: u32) -> Self

Converts to this type from the input type.

impl From<u64> for U64

fn from(n: u64) -> Self

Converts to this type from the input type.

impl FromStr for U64

type Err = ()

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl Hash for U64

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, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Mul for U64

type Output = U64

The resulting type after applying the * operator.

fn mul(self, rhs: U64) -> Self::Output

Performs the * operation.

impl Mul<u64> for U64

type Output = U64

The resulting type after applying the * operator.

fn mul(self, rhs: u64) -> Self::Output

Performs the * operation.

impl Ord for U64

fn cmp(&self, other: &U64) -> Ordering

This method returns an Ordering between self and other.

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

where Self: Sized,

Compares and returns the maximum of two values.

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

where Self: Sized,

Compares and returns the minimum of two values.

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

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for U64

fn eq(&self, other: &U64) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for U64

fn partial_cmp(&self, other: &U64) -> Option<Ordering>

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl Serialize for U64

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for U64

impl Sub for U64

type Output = U64

The resulting type after applying the - operator.

fn sub(self, rhs: U64) -> Self::Output

Performs the - operation.