Struct zerocopy::byteorder::I64

pub struct I64<O>(/* private fields */);

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 FromBytes, AsBytes, and Unaligned, making it useful for parsing and serialization. See the module documentation for an example of how it can be used for parsing UDP packets.

Implementations

impl<O> I64<O>

pub const ZERO: I64<O> = _

The value zero.

This constant should be preferred to constructing a new value using new, as new may perform an endianness swap depending on the endianness and platform.

pub const fn from_bytes(bytes: [u8; 8]) -> I64<O>

Constructs a new value from bytes which are already in the endianness O.

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> AsBytes for I64<O>

where PhantomData<O>: AsBytes, [u8; 8]: AsBytes,

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

Gets the bytes of this value.

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

where Self: FromBytes,

Gets the bytes of this value mutably.

fn write_to<B: ByteSliceMut>(&self, bytes: B) -> Option<()>

Writes a copy of self to bytes.

fn write_to_prefix<B: ByteSliceMut>(&self, bytes: B) -> Option<()>

Writes a copy of self to the prefix of bytes.

fn write_to_suffix<B: ByteSliceMut>(&self, bytes: B) -> Option<()>

Writes a copy of self to the suffix of bytes.

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

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

Converts this type into a mutable reference of the (usually inferred) input type.

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

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

Converts this type into a shared reference of the (usually inferred) input type.

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

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

Formats the value using the given formatter.

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

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

Returns a copy of the value.

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

Performs copy-assignment from source.

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

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

Formats the value using the given formatter.

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

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

Converts to this type from the input type.

impl<O: ByteOrder, P: ByteOrder> From<I16<O>> for I64<P>

fn from(x: I16<O>) -> I64<P>

Converts to this type from the input type.

impl<O: ByteOrder, P: ByteOrder> From<I32<O>> for I64<P>

fn from(x: I32<O>) -> I64<P>

Converts to this type from the input type.

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

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

Converts to this type from the input type.

impl<O: ByteOrder, P: ByteOrder> From<I64<O>> for I128<P>

fn from(x: I64<O>) -> I128<P>

Converts to this type from the input type.

impl<O: ByteOrder> From<I64<O>> for i128

fn from(x: I64<O>) -> i128

Converts to this type from the input type.

impl<O: ByteOrder> From<I64<O>> for i64

fn from(x: I64<O>) -> i64

Converts to this type from the input type.

impl<O: ByteOrder> From<i64> for I64<O>

fn from(x: i64) -> I64<O>

Converts to this type from the input type.

impl<O> FromBytes for I64<O>

where PhantomData<O>: FromBytes, [u8; 8]: FromBytes,

fn read_from<B: ByteSlice>(bytes: B) -> Option<Self>

where Self: Sized,

Reads a copy of Self from bytes.

fn read_from_prefix<B: ByteSlice>(bytes: B) -> Option<Self>

where Self: Sized,

Reads a copy of Self from the prefix of bytes.

fn read_from_suffix<B: ByteSlice>(bytes: B) -> Option<Self>

where Self: Sized,

Reads a copy of Self from the suffix of bytes.

fn new_zeroed() -> Self

where Self: Sized,

Creates an instance of Self from zeroed bytes.

fn new_box_zeroed() -> Box<Self>

where Self: Sized,

Creates a Box<Self> from zeroed bytes.

fn new_box_slice_zeroed(len: usize) -> Box<[Self]>

where Self: Sized,

Creates a Box<[Self]> (a boxed slice) from zeroed bytes.

fn new_vec_zeroed(len: usize) -> Vec<Self>

where Self: Sized,

Creates a Vec<Self> from zeroed bytes.

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

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<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 ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

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

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: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<O: PartialEq> PartialEq 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: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<O: ByteOrder, P: ByteOrder> TryFrom<I128<P>> for I64<O>

type Error = TryFromIntError

The type returned in the event of a conversion error.

fn try_from(x: I128<P>) -> Result<I64<O>, TryFromIntError>

Performs the conversion.

impl<O: ByteOrder, P: ByteOrder> TryFrom<I64<P>> for I16<O>

type Error = TryFromIntError

The type returned in the event of a conversion error.

fn try_from(x: I64<P>) -> Result<I16<O>, TryFromIntError>

Performs the conversion.

impl<O: ByteOrder, P: ByteOrder> TryFrom<I64<P>> for I32<O>

type Error = TryFromIntError

The type returned in the event of a conversion error.

fn try_from(x: I64<P>) -> Result<I32<O>, TryFromIntError>

Performs the conversion.

impl<O: ByteOrder> TryFrom<i128> for I64<O>

type Error = TryFromIntError

The type returned in the event of a conversion error.

fn try_from(x: i128) -> Result<I64<O>, TryFromIntError>

Performs the conversion.

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

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

Formats the value using the given formatter.

impl<O: Copy> Copy for I64<O>

impl<O: Eq> Eq for I64<O>

impl<O> StructuralEq for I64<O>

impl<O> StructuralPartialEq for I64<O>

impl<O> Unaligned for I64<O>

where PhantomData<O>: Unaligned, [u8; 8]: Unaligned,