Struct U256

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

256-bit unsigned integer

Implementations

impl U256

pub const MIDDLE: Self

The middle of the piece distance field. The analogue of 0b1000_0000 for u8.

pub const MAX: Self

Maximum value.

pub const fn zero() -> Self

Zero (additive identity) of this type.

pub fn one() -> Self

One (multiplicative identity) of this type.

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

Create from big endian bytes

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

Convert to big endian bytes

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

Create from little endian bytes

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

Convert to little endian bytes

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

Adds two numbers, checking for overflow. If overflow happens, None is returned.

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

Subtracts two numbers, checking for underflow. If underflow happens, None is returned.

pub fn checked_mul(&self, v: &Self) -> Option<Self>

Multiplies two numbers, checking for underflow or overflow. If underflow or overflow happens, None is returned.

pub fn checked_div(&self, v: &Self) -> Option<Self>

Divides two numbers, checking for underflow, overflow and division by zero. If any of that happens, None is returned.

pub fn saturating_add(&self, v: &Self) -> Self

Saturating addition. Computes self + other, saturating at the relevant high or low boundary of the type.

pub fn saturating_sub(&self, v: &Self) -> Self

Saturating subtraction. Computes self - other, saturating at the relevant high or low boundary of the type.

pub fn saturating_mul(&self, v: &Self) -> Self

Saturating multiplication. Computes self * other, saturating at the relevant high or low boundary of the type.

Trait Implementations

impl Add for U256

type Output = U256

The resulting type after applying the + operator.

fn add(self, rhs: U256) -> U256

Performs the + operation.

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 Decode for U256

fn decode<__CodecInputEdqy: Input>( __codec_input_edqy: &mut __CodecInputEdqy, ) -> Result<Self, Error>

Attempt to deserialise the value from input.

fn decode_into<I>( input: &mut I, dst: &mut MaybeUninit<Self>, ) -> Result<DecodeFinished, Error>

where I: Input,

Attempt to deserialize the value from input into a pre-allocated piece of memory.

fn skip<I>(input: &mut I) -> Result<(), Error>

where I: Input,

Attempt to skip the encoded value from input.

fn encoded_fixed_size() -> Option<usize>

Returns the fixed encoded size of the type.

impl Default for U256

fn default() -> Self

Returns the “default value” for a type.

impl Display for U256

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

Formats the value using the given formatter.

impl<__RhsT> Div<__RhsT> for U256

where U256: Div<__RhsT, Output = U256>,

type Output = U256

The resulting type after applying the / operator.

fn div(self, rhs: __RhsT) -> U256

Performs the / operation.

impl Encode for U256

fn size_hint(&self) -> usize

If possible give a hint of expected size of the encoding.

fn encode_to<__CodecOutputEdqy: Output + ?Sized>( &self, __codec_dest_edqy: &mut __CodecOutputEdqy, )

Convert self to a slice and append it to the destination.

fn encode(&self) -> Vec<u8>

Convert self to an owned vector.

fn using_encoded<__CodecOutputReturn, __CodecUsingEncodedCallback: FnOnce(&[u8]) -> __CodecOutputReturn>( &self, f: __CodecUsingEncodedCallback, ) -> __CodecOutputReturn

Convert self to a slice and then invoke the given closure with it.

fn encoded_size(&self) -> usize

Calculates the encoded size.

impl From<u128> for U256

fn from(number: u128) -> Self

Converts to this type from the input type.

impl From<u16> for U256

fn from(number: u16) -> Self

Converts to this type from the input type.

impl From<u32> for U256

fn from(number: u32) -> Self

Converts to this type from the input type.

impl From<u64> for U256

fn from(number: u64) -> Self

Converts to this type from the input type.

impl From<u8> for U256

fn from(number: u8) -> Self

Converts to this type from the input type.

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<__RhsT> Mul<__RhsT> for U256

where U256: Mul<__RhsT, Output = U256>,

type Output = U256

The resulting type after applying the * operator.

fn mul(self, rhs: __RhsT) -> U256

Performs the * operation.

impl Ord for U256

fn cmp(&self, other: &U256) -> 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 U256

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

fn partial_cmp(&self, other: &U256) -> 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<__RhsT> Rem<__RhsT> for U256

where U256: Rem<__RhsT, Output = U256>,

type Output = U256

The resulting type after applying the % operator.

fn rem(self, rhs: __RhsT) -> U256

Performs the % operation.

impl Sub for U256

type Output = U256

The resulting type after applying the - operator.

fn sub(self, rhs: U256) -> U256

Performs the - operation.

impl TryFrom<U256> for u16

type Error = &'static str

The type returned in the event of a conversion error.

fn try_from(value: U256) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<U256> for u32

type Error = &'static str

The type returned in the event of a conversion error.

fn try_from(value: U256) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<U256> for u64

type Error = &'static str

The type returned in the event of a conversion error.

fn try_from(value: U256) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<U256> for u8

type Error = &'static str

The type returned in the event of a conversion error.

fn try_from(value: U256) -> Result<Self, Self::Error>

Performs the conversion.

impl TypeInfo for U256

type Identity = U256

The type identifying for which type info is provided.

fn type_info() -> Type

Returns the static type identifier for Self.

impl WrappingAdd for U256

fn wrapping_add(&self, other: &Self) -> Self

Wrapping (modular) addition. Computes self + other, wrapping around at the boundary of the type.

impl WrappingSub for U256

fn wrapping_sub(&self, other: &Self) -> Self

Wrapping (modular) subtraction. Computes self - other, wrapping around at the boundary of the type.

impl Copy for U256

impl EncodeLike for U256

impl Eq for U256

impl StructuralPartialEq for U256