Struct heed_types::integer::I64

#[repr(transparent)]pub struct I64<O: ByteOrder>(_, _);

A 64-bit signed integer stored in O byte order.

I64 is like the native i64 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.

An I64 can be constructed using the new method, and its contained value can be obtained as a native i64 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 I64 has endianness O and that, b) the layout of i64 has the platform's native endianness.

I64 implements Zeroable, and Pod, making it useful for parsing and serialization.

Implementations

impl<O: ByteOrder> I64<O>

pub fn new(n: i64) -> I64<O>

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

pub fn get(self) -> i64

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: i64)

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; 8]> for I64<O>

fn as_mut(&mut self) -> &mut [u8; 8]

Performs the conversion.

impl<O: ByteOrder> AsRef<[u8; 8]> for I64<O>

fn as_ref(&self) -> &[u8; 8]

Performs the conversion.

impl<O: ByteOrder> Binary for I64<O>

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

Formats the value using the given formatter.

impl<O: Clone + ByteOrder> Clone for I64<O>

fn clone(&self) -> I64<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 I64<O>

impl<O: ByteOrder> Debug for I64<O>

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

Formats the value using the given formatter.

impl<O: Default + ByteOrder> Default for I64<O>

fn default() -> I64<O>

Returns the "default value" for a type.

impl<O: ByteOrder> Display for I64<O>

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

Formats the value using the given formatter.

impl<O: Eq + ByteOrder> Eq for I64<O>

impl<O: ByteOrder> From<[u8; 8]> for I64<O>

fn from(bytes: [u8; 8]) -> I64<O>

Performs the conversion.

impl<O: Hash + ByteOrder> Hash for I64<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 I64<O>

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

Formats the value using the given formatter.

impl<O: ByteOrder> Octal for I64<O>

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

Formats the value using the given formatter.

impl<O: ByteOrder> PartialEq<[u8; 8]> for I64<O>

fn eq(&self, other: &[u8; 8]) -> 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<I64<O>> for I64<O>

fn eq(&self, other: &I64<O>) -> bool

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

fn ne(&self, other: &I64<O>) -> bool

This method tests for !=.

impl<O: 'static + ByteOrder> Pod for I64<O>

impl<O: ByteOrder> StructuralEq for I64<O>

impl<O: ByteOrder> StructuralPartialEq for I64<O>

impl<O: ByteOrder> UpperHex for I64<O>

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

Formats the value using the given formatter.

impl<O: ByteOrder> Zeroable for I64<O>

fn zeroed() -> I64<O>

Calls zeroed.