[][src]Struct ethereum_types::H32

#[repr(C)]pub struct H32(pub [u8; 4]);

Implementations

impl H32[src]

pub const fn repeat_byte(byte: u8) -> H32[src]

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

pub const fn zero() -> H32[src]

Returns a new zero-initialized fixed hash.

pub const fn len_bytes() -> usize[src]

Returns the size of this hash in bytes.

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

Extracts a byte slice containing the entire fixed hash.

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

Extracts a mutable byte slice containing the entire fixed hash.

pub const fn as_fixed_bytes(&self) -> &[u8; 4][src]

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

pub fn as_fixed_bytes_mut(&mut self) -> &mut [u8; 4][src]

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

pub const fn to_fixed_bytes(self) -> [u8; 4][src]

Returns the inner bytes array.

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

Returns a constant raw pointer to the value.

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

Returns a mutable raw pointer to the value.

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

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]) -> Self[src]

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: &Self) -> bool[src]

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

pub fn is_zero(&self) -> bool[src]

Returns true if no bits are set.

impl H32[src]

Utilities using the byteorder crate.

pub fn to_low_u64_be(&self) -> u64[src]

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[src]

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[src]

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) -> Self[src]

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) -> Self[src]

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) -> Self[src]

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 H32[src]

Utilities using the rand crate.

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

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

pub fn randomize(&mut self)[src]

Assign self to a cryptographically random value.

pub fn random_using<R: ?Sized>(rng: &mut R) -> Self where
    R: Rng
[src]

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

pub fn random() -> Self[src]

Create a new hash with cryptographically random content.

Trait Implementations

impl AsMut<[u8]> for H32[src]

impl AsRef<[u8]> for H32[src]

impl<'l, 'r> BitAnd<&'r H32> for &'l H32[src]

type Output = H32

The resulting type after applying the & operator.

impl BitAnd<H32> for H32[src]

type Output = H32

The resulting type after applying the & operator.

impl<'r> BitAndAssign<&'r H32> for H32[src]

impl BitAndAssign<H32> for H32[src]

impl<'l, 'r> BitOr<&'r H32> for &'l H32[src]

type Output = H32

The resulting type after applying the | operator.

impl BitOr<H32> for H32[src]

type Output = H32

The resulting type after applying the | operator.

impl<'r> BitOrAssign<&'r H32> for H32[src]

impl BitOrAssign<H32> for H32[src]

impl<'l, 'r> BitXor<&'r H32> for &'l H32[src]

type Output = H32

The resulting type after applying the ^ operator.

impl BitXor<H32> for H32[src]

type Output = H32

The resulting type after applying the ^ operator.

impl<'r> BitXorAssign<&'r H32> for H32[src]

impl BitXorAssign<H32> for H32[src]

impl Clone for H32[src]

impl Copy for H32[src]

impl Debug for H32[src]

impl Decodable for H32[src]

impl Default for H32[src]

impl<'de> Deserialize<'de> for H32[src]

impl Display for H32[src]

impl Distribution<H32> for Standard[src]

impl Encodable for H32[src]

impl Eq for H32[src]

impl<'a> From<&'a [u8; 4]> for H32[src]

fn from(bytes: &'a [u8; 4]) -> Self[src]

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<'a> From<&'a mut [u8; 4]> for H32[src]

fn from(bytes: &'a mut [u8; 4]) -> Self[src]

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; 4]> for H32[src]

fn from(bytes: [u8; 4]) -> Self[src]

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

Note

The given bytes are interpreted in big endian order.

impl From<H32> for [u8; 4][src]

impl FromStr for H32[src]

type Err = FromHexError

The associated error which can be returned from parsing.

fn from_str(input: &str) -> Result<H32, FromHexError>[src]

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 Hash for H32[src]

impl<I> Index<I> for H32 where
    I: SliceIndex<[u8]>, 
[src]

type Output = I::Output

The returned type after indexing.

impl<I> IndexMut<I> for H32 where
    I: SliceIndex<[u8], Output = [u8]>, 
[src]

impl LowerHex for H32[src]

impl Ord for H32[src]

impl PartialEq<H32> for H32[src]

impl PartialOrd<H32> for H32[src]

impl Serialize for H32[src]

impl UpperHex for H32[src]

Auto Trait Implementations

impl RefUnwindSafe for H32

impl Send for H32

impl Sync for H32

impl Unpin for H32

impl UnwindSafe for H32

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized
[src]

impl<T, U> AsByteSlice<T> for U where
    T: ToByteSlice,
    U: AsRef<[T]> + ?Sized

impl<T, U> AsMutByteSlice<T> for U where
    T: ToMutByteSlice,
    U: AsMut<[T]> + ?Sized

impl<U> AsMutSliceOf for U where
    U: AsMut<[u8]> + ?Sized

impl<U> AsSliceOf for U where
    U: AsRef<[u8]> + ?Sized

impl<T> Borrow<T> for T where
    T: ?Sized
[src]

impl<T> BorrowMut<T> for T where
    T: ?Sized
[src]

impl<T> DeserializeOwned for T where
    T: for<'de> Deserialize<'de>, 
[src]

impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 
[src]

impl<T> ToOwned for T where
    T: Clone
[src]

type Owned = T

The resulting type after obtaining ownership.

impl<T> ToString for T where
    T: Display + ?Sized
[src]

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
[src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
[src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

impl<V, T> VZip<V> for T where
    V: MultiLane<T>,