Struct U256 

pub struct U256(/* private fields */);

256-bit unsigned integer (wei amounts), little-endian 64-bit limbs.

Implementations

impl U256

pub const ZERO: Self

pub const MAX: Self

pub fn from_u128(v: u128) -> Self

pub fn is_zero(&self) -> bool

pub fn from_be_slice(bytes: &[u8]) -> Option<Self>

pub fn to_be_bytes(self) -> [u8; 32]

pub fn from_hex(s: &str) -> Result<Self, ParseError>

pub fn from_dec(s: &str) -> Result<Self, ParseError>

pub fn checked_add(self, rhs: Self) -> Option<Self>

pub fn checked_sub(self, rhs: Self) -> Option<Self>

pub fn to_hex_quantity(self) -> String

pub fn format_ether(self) -> String

Formats a wei amount in ether with up to 18 decimals, trailing zeros removed.

Trait Implementations

impl Clone for U256

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for U256

impl Debug for U256

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

Formats the value using the given formatter.

impl Default for U256

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for U256

Accepts hex strings, decimal strings and JSON numbers, since clients differ.

fn deserialize<D: Deserializer<'de>>(d: D) -> Result<Self, D::Error>

Deserialize this value from the given Serde deserializer.

impl Display for U256

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

Formats the value using the given formatter.

impl Eq for U256

impl FromStr for U256

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

Accepts 0x hex quantities and plain decimals.

type Err = ParseError

The associated error which can be returned from parsing.

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, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for U256

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

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for U256

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for U256

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

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 U256

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

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for U256