Struct heed_types::integer::U128

#[repr(transparent)]pub struct U128<O: ByteOrder>(_, _);

A 128-bit unsigned integer stored in O byte order.

U128 is like the native u128 type with two major differences: First, it has no alignment requirement (its alignment is 1). Second, the endianness of its memory layout is given by the type parameter O.

A U128 can be constructed using the new method, and its contained value can be obtained as a native u128 using the get method, or updated in place with the set method. In all cases, if the endianness O is not the same as the endianness of the current platform, an endianness swap will be performed in order to uphold the invariants that a) the layout of U128 has endianness O and that, b) the layout of u128 has the platform's native endianness.

U128 implements Zeroable, and Pod, making it useful for parsing and serialization.

Implementations

impl<O: ByteOrder> U128<O>

pub fn new(n: u128) -> U128<O>

Constructs a new value, possibly performing an endianness swap to guarantee that the returned value has endianness O.

pub fn get(self) -> u128

Returns the value as a primitive type, possibly performing an endianness swap to guarantee that the return value has the endianness of the native platform.

pub fn set(&mut self, n: u128)

Updates the value in place as a primitive type, possibly performing an endianness swap to guarantee that the stored value has the endianness O.

Trait Implementations

impl<O: ByteOrder> AsMut<[u8; 16]> for U128<O>

fn as_mut(&mut self) -> &mut [u8; 16]

Performs the conversion.

impl<O: ByteOrder> AsRef<[u8; 16]> for U128<O>

fn as_ref(&self) -> &[u8; 16]

Performs the conversion.

impl<O: ByteOrder> Binary for U128<O>

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

Formats the value using the given formatter.

impl<O: Clone + ByteOrder> Clone for U128<O>

fn clone(&self) -> U128<O>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<O: Copy + ByteOrder> Copy for U128<O>

impl<O: ByteOrder> Debug for U128<O>

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

Formats the value using the given formatter.

impl<O: Default + ByteOrder> Default for U128<O>

fn default() -> U128<O>

Returns the "default value" for a type.

impl<O: ByteOrder> Display for U128<O>

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

Formats the value using the given formatter.

impl<O: Eq + ByteOrder> Eq for U128<O>

impl<O: ByteOrder> From<[u8; 16]> for U128<O>

fn from(bytes: [u8; 16]) -> U128<O>

Performs the conversion.

impl<O: Hash + ByteOrder> Hash for U128<O>

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

Feeds this value into the given Hasher.

pub fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given Hasher.

impl<O: ByteOrder> LowerHex for U128<O>

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

Formats the value using the given formatter.

impl<O: ByteOrder> Octal for U128<O>

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

Formats the value using the given formatter.

impl<O: ByteOrder> PartialEq<[u8; 16]> for U128<O>

fn eq(&self, other: &[u8; 16]) -> bool

This method tests for self and other values to be equal, and is used by ==.

#[must_use]pub fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl<O: PartialEq + ByteOrder> PartialEq<U128<O>> for U128<O>

fn eq(&self, other: &U128<O>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &U128<O>) -> bool

This method tests for !=.

impl<O: 'static + ByteOrder> Pod for U128<O>

impl<O: ByteOrder> StructuralEq for U128<O>

impl<O: ByteOrder> StructuralPartialEq for U128<O>

impl<O: ByteOrder> UpperHex for U128<O>

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

Formats the value using the given formatter.

impl<O: ByteOrder> Zeroable for U128<O>

fn zeroed() -> U128<O>

Calls zeroed.