Struct H256

pub struct H256(/* private fields */);

Represent 256 bits

Implementations

impl H256

pub const fn zero() -> Self

pub fn is_zero(&self) -> bool

pub fn get_bit(&self, i: u8) -> bool

pub fn set_bit(&mut self, i: u8)

pub fn clear_bit(&mut self, i: u8)

pub fn as_slice(&self) -> &[u8]

pub fn fork_height(&self, key: &H256) -> u8

Treat H256 as a path in a tree fork height is the number of common bits(from heigher to lower: 255..=0) of two H256

pub fn parent_path(&self, height: u8) -> Self

Treat H256 as a path in a tree return parent_path of self

pub fn copy_bits(&self, range: impl RangeBounds<u8>) -> Self

Copy bits and return a new H256

Trait Implementations

impl BorshDeserialize for H256

fn deserialize_reader<__R: Read>(reader: &mut __R) -> Result<Self, Error>

fn deserialize(buf: &mut &[u8]) -> Result<Self, Error>

Deserializes this instance from a given slice of bytes. Updates the buffer to point at the remaining bytes.

fn try_from_slice(v: &[u8]) -> Result<Self, Error>

Deserialize this instance from a slice of bytes.

fn try_from_reader<R>(reader: &mut R) -> Result<Self, Error>

where R: Read,

impl BorshSerialize for H256

fn serialize<__W: Write>(&self, writer: &mut __W) -> Result<(), Error>

impl Clone for H256

fn clone(&self) -> H256

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for H256

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

Formats the value using the given formatter.

impl Default for H256

fn default() -> H256

Returns the “default value” for a type.

impl From<[u8; 32]> for H256

fn from(v: [u8; 32]) -> H256

Converts to this type from the input type.

impl From<H256> for [u8; 32]

fn from(v: H256) -> [u8; 32]

Converts to this type from the input type.

impl From<H256> for Hash

fn from(hash: H256) -> Self

Converts to this type from the input type.

impl Hash for H256

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 H256

fn cmp(&self, other: &H256) -> 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 H256

fn eq(&self, other: &H256) -> 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 H256

fn partial_cmp(&self, other: &H256) -> 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 Value for H256

fn as_slice(&self) -> &[u8]

fn zero() -> Self

fn is_zero(&self) -> bool

impl Copy for H256

impl Eq for H256

impl StructuralPartialEq for H256