Struct substrate_primitives::H512

#[repr(C)]
pub struct H512(pub [u8; 64]);

Fixed-size uninterpreted hash type with 64 bytes (512 bits) size.

Methods

impl H512

pub fn repeat_byte(byte: u8) -> H512

Returns a new fixed hash where all bits are set to the given byte.

pub fn zero() -> H512

Returns a new zero-initialized fixed hash.

pub fn len_bytes() -> usize

Returns the size of this hash in bytes.

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

Extracts a byte slice containing the entire fixed hash.

pub fn as_bytes_mut(&mut self) -> &mut [u8]

Extracts a mutable byte slice containing the entire fixed hash.

pub fn as_fixed_bytes(&self) -> &[u8; 64]

Extracts a reference to the byte array containing the entire fixed hash.

pub fn as_fixed_bytes_mut(&mut self) -> &mut [u8; 64]

Extracts a reference to the byte array containing the entire fixed hash.

pub fn to_fixed_bytes(self) -> [u8; 64]

Returns the inner bytes array.

pub fn as_ptr(&self) -> *const u8

Returns a constant raw pointer to the value.

pub fn as_mut_ptr(&mut self) -> *mut u8

Returns a mutable raw pointer to the value.

pub fn assign_from_slice(&mut self, src: &[u8])

Assign the bytes from the byte slice src to self.

Note

The given bytes are interpreted in big endian order.

Panics

If the length of src and the number of bytes in self do not match.

pub fn from_slice(src: &[u8]) -> H512

Create a new fixed-hash from the given slice src.

Note

The given bytes are interpreted in big endian order.

Panics

If the length of src and the number of bytes in Self do not match.

pub fn covers(&self, b: &H512) -> bool

Returns true if all bits set in b are also set in self.

pub fn is_zero(&self) -> bool

Returns true if no bits are set.

impl H512

Utilities using the byteorder crate.

pub fn to_low_u64_be(&self) -> u64

Returns the lowest 8 bytes interpreted as big-endian.

Note

For hash type with less than 8 bytes the missing bytes are interpreted as being zero.

pub fn to_low_u64_le(&self) -> u64

Returns the lowest 8 bytes interpreted as little-endian.

Note

For hash type with less than 8 bytes the missing bytes are interpreted as being zero.

pub fn to_low_u64_ne(&self) -> u64

Returns the lowest 8 bytes interpreted as native-endian.

Note

For hash type with less than 8 bytes the missing bytes are interpreted as being zero.

pub fn from_low_u64_be(val: u64) -> H512

Creates a new hash type from the given u64 value.

Note

• The given u64 value is interpreted as big endian.
• Ignores the most significant bits of the given value if the hash type has less than 8 bytes.

pub fn from_low_u64_le(val: u64) -> H512

Creates a new hash type from the given u64 value.

Note

• The given u64 value is interpreted as little endian.
• Ignores the most significant bits of the given value if the hash type has less than 8 bytes.

pub fn from_low_u64_ne(val: u64) -> H512

Creates a new hash type from the given u64 value.

Note

• The given u64 value is interpreted as native endian.
• Ignores the most significant bits of the given value if the hash type has less than 8 bytes.

impl H512

Utilities using the rand crate.

pub fn randomize_using<R>(&mut self, rng: &mut R) where
    R: Rng + ?Sized, 

Assign self to a cryptographically random value using the given random number generator.

pub fn randomize(&mut self)

Assign self to a cryptographically random value.

pub fn random_using<R>(rng: &mut R) -> H512 where
    R: Rng + ?Sized, 

Create a new hash with cryptographically random content using the given random number generator.

pub fn random() -> H512

Create a new hash with cryptographically random content.

Trait Implementations

impl BitOrAssign<H512> for H512

fn bitor_assign(&mut self, rhs: H512)

Performs the |= operation.

impl<'r> BitOrAssign<&'r H512> for H512

fn bitor_assign(&mut self, rhs: &'r H512)

Performs the |= operation.

impl AsRef<[u8]> for H512

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

Performs the conversion.

impl<'l, 'r> BitOr<&'r H512> for &'l H512

type Output = H512

The resulting type after applying the | operator.

fn bitor(self, rhs: &'r H512) -> <&'l H512 as BitOr<&'r H512>>::Output

Performs the | operation.

impl BitOr<H512> for H512

type Output = H512

The resulting type after applying the | operator.

fn bitor(self, rhs: H512) -> <H512 as BitOr<H512>>::Output

Performs the | operation.

impl BitXor<H512> for H512

type Output = H512

The resulting type after applying the ^ operator.

fn bitxor(self, rhs: H512) -> <H512 as BitXor<H512>>::Output

Performs the ^ operation.

impl<'l, 'r> BitXor<&'r H512> for &'l H512

type Output = H512

The resulting type after applying the ^ operator.

fn bitxor(self, rhs: &'r H512) -> <&'l H512 as BitXor<&'r H512>>::Output

Performs the ^ operation.

impl Eq for H512

impl FromStr for H512

type Err = FromHexError

The associated error which can be returned from parsing.

fn from_str(input: &str) -> Result<H512, FromHexError>

Creates a hash type instance from the given string.

Note

The given input string is interpreted in big endian.

Errors

• When encountering invalid non hex-digits
• Upon empty string input or invalid input length in general

impl Display for H512

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

Formats the value using the given formatter.

impl Decode for H512

fn decode<I>(input: &mut I) -> Option<H512> where
    I: Input, 

Attempt to deserialise the value from input.

impl<'de> Deserialize<'de> for H512

fn deserialize<D>(
    deserializer: D
) -> Result<H512, <D as Deserializer<'de>>::Error> where
    D: Deserializer<'de>, 

Deserialize this value from the given Serde deserializer.

impl Encode for H512

fn using_encoded<R, F>(&self, f: F) -> R where
    F: FnOnce(&[u8]) -> R, 

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

fn encode_to<T>(&self, dest: &mut T) where
    T: Output, 

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

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

Convert self to an owned vector.

impl<'r> BitAndAssign<&'r H512> for H512

fn bitand_assign(&mut self, rhs: &'r H512)

Performs the &= operation.

impl BitAndAssign<H512> for H512

fn bitand_assign(&mut self, rhs: H512)

Performs the &= operation.

impl Debug for H512

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

Formats the value using the given formatter.

impl PartialEq<H512> for H512

fn eq(&self, other: &H512) -> 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 LowerHex for H512

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

Formats the value using the given formatter.

impl HeapSizeOf for H512

fn heap_size_of_children(&self) -> usize

Measure the size of any heap-allocated structures that hang off this value, but not the space taken up by the value itself (i.e. what size_of:: measures, more or less); that space is handled by the implementation of HeapSizeOf for Box below.

impl<I> IndexMut<I> for H512 where
    I: SliceIndex<[u8], Output = [u8]>, 

fn index_mut(&mut self, index: I) -> &mut <I as SliceIndex<[u8]>>::Output

Performs the mutable indexing (container[index]) operation.

impl Serialize for H512

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

Serialize this value into the given Serde serializer.

impl PartialOrd<H512> for H512

fn partial_cmp(&self, other: &H512) -> 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 Ord for H512

fn cmp(&self, other: &H512) -> 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.

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

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

Restrict a value to a certain interval.

impl UpperHex for H512

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

Formats the value using the given formatter.

impl<I> Index<I> for H512 where
    I: SliceIndex<[u8]>, 

type Output = <I as SliceIndex<[u8]>>::Output

The returned type after indexing.

fn index(&self, index: I) -> &<I as SliceIndex<[u8]>>::Output

Performs the indexing (container[index]) operation.

impl Clone for H512

fn clone(&self) -> H512

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'l, 'r> BitAnd<&'r H512> for &'l H512

type Output = H512

The resulting type after applying the & operator.

fn bitand(self, rhs: &'r H512) -> <&'l H512 as BitAnd<&'r H512>>::Output

Performs the & operation.

impl BitAnd<H512> for H512

type Output = H512

The resulting type after applying the & operator.

fn bitand(self, rhs: H512) -> <H512 as BitAnd<H512>>::Output

Performs the & operation.

impl Default for H512

fn default() -> H512

Returns the "default value" for a type.

impl Hash for H512

fn hash<H>(&self, state: &mut H) where
    H: Hasher, 

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].

impl Copy for H512

impl BitXorAssign<H512> for H512

fn bitxor_assign(&mut self, rhs: H512)

Performs the ^= operation.

impl<'r> BitXorAssign<&'r H512> for H512

fn bitxor_assign(&mut self, rhs: &'r H512)

Performs the ^= operation.

impl<'a> From<&'a mut [u8; 64]> for H512

fn from(bytes: &'a mut [u8; 64]) -> H512

Constructs a hash type from the given reference to the mutable bytes array of fixed length.

Note

The given bytes are interpreted in big endian order.

impl From<[u8; 64]> for H512

fn from(bytes: [u8; 64]) -> H512

Constructs a hash type from the given bytes array of fixed length.

Note

The given bytes are interpreted in big endian order.

impl<'a> From<&'a [u8; 64]> for H512

fn from(bytes: &'a [u8; 64]) -> H512

Constructs a hash type from the given reference to the bytes array of fixed length.

Note

The given bytes are interpreted in big endian order.

impl AsMut<[u8]> for H512

fn as_mut(&mut self) -> &mut [u8]

Performs the conversion.

impl From<Signature> for H512

fn from(v: Signature) -> H512

Performs the conversion.

impl From<Signature> for H512

fn from(v: Signature) -> H512

Performs the conversion.