pub struct Isize<O>(/* private fields */);
Expand description
A word-sized signed integer stored in a given byte order.
Isize
is like the native isize
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
,
which can be any type which implements ByteOrder
. In particular, this refers
to BigEndian
, LittleEndian
, NativeEndian
, and NetworkEndian
.
An Isize
can be constructed using
the new
method, and its contained value can be obtained as a native
isize
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 Isize
has endianness O
and that, b) the layout of isize
has
the platform’s native endianness.
Isize
implements FromBytes
, IntoBytes
, 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§
source§impl<O> Isize<O>
impl<O> Isize<O>
sourcepub const ZERO: Isize<O> = _
pub const ZERO: Isize<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.
sourcepub const fn from_bytes(bytes: [u8; 8]) -> Isize<O>
pub const fn from_bytes(bytes: [u8; 8]) -> Isize<O>
Constructs a new value from bytes which are already in O
byte
order.
source§impl<O: ByteOrder> Isize<O>
impl<O: ByteOrder> Isize<O>
sourcepub const fn new(n: isize) -> Isize<O>
pub const fn new(n: isize) -> Isize<O>
Constructs a new value, possibly performing an endianness
swap to guarantee that the returned value has endianness
O
.
Trait Implementations§
source§impl<O: ByteOrder> AddAssign for Isize<O>
impl<O: ByteOrder> AddAssign for Isize<O>
source§fn add_assign(&mut self, rhs: Isize<O>)
fn add_assign(&mut self, rhs: Isize<O>)
+=
operation. Read moresource§impl<O: ByteOrder> BitAndAssign for Isize<O>
impl<O: ByteOrder> BitAndAssign for Isize<O>
source§fn bitand_assign(&mut self, rhs: Isize<O>)
fn bitand_assign(&mut self, rhs: Isize<O>)
&=
operation. Read moresource§impl<O: ByteOrder> BitOrAssign for Isize<O>
impl<O: ByteOrder> BitOrAssign for Isize<O>
source§fn bitor_assign(&mut self, rhs: Isize<O>)
fn bitor_assign(&mut self, rhs: Isize<O>)
|=
operation. Read moresource§impl<O: ByteOrder> BitXorAssign for Isize<O>
impl<O: ByteOrder> BitXorAssign for Isize<O>
source§fn bitxor_assign(&mut self, rhs: Isize<O>)
fn bitxor_assign(&mut self, rhs: Isize<O>)
^=
operation. Read moresource§impl<O: ByteOrder> DivAssign for Isize<O>
impl<O: ByteOrder> DivAssign for Isize<O>
source§fn div_assign(&mut self, rhs: Isize<O>)
fn div_assign(&mut self, rhs: Isize<O>)
/=
operation. Read moresource§impl<O> FromBytes for Isize<O>
impl<O> FromBytes for Isize<O>
source§fn slice_from_prefix(bytes: &[u8], count: usize) -> Option<(&[Self], &[u8])>where
Self: Sized + NoCell,
fn slice_from_prefix(bytes: &[u8], count: usize) -> Option<(&[Self], &[u8])>where
Self: Sized + NoCell,
bytes
as a &[Self]
with length
equal to count
without copying. Read moresource§fn slice_from_suffix(bytes: &[u8], count: usize) -> Option<(&[u8], &[Self])>where
Self: Sized + NoCell,
fn slice_from_suffix(bytes: &[u8], count: usize) -> Option<(&[u8], &[Self])>where
Self: Sized + NoCell,
bytes
as a &[Self]
with length
equal to count
without copying. Read moresource§fn mut_slice_from_prefix(
bytes: &mut [u8],
count: usize
) -> Option<(&mut [Self], &mut [u8])>
fn mut_slice_from_prefix( bytes: &mut [u8], count: usize ) -> Option<(&mut [Self], &mut [u8])>
bytes
as a &mut [Self]
with length
equal to count
without copying. Read moresource§fn mut_slice_from_suffix(
bytes: &mut [u8],
count: usize
) -> Option<(&mut [u8], &mut [Self])>
fn mut_slice_from_suffix( bytes: &mut [u8], count: usize ) -> Option<(&mut [u8], &mut [Self])>
bytes
as a &mut [Self]
with length
equal to count
without copying. Read moresource§impl<O> IntoBytes for Isize<O>
impl<O> IntoBytes for Isize<O>
source§impl<O: ByteOrder> MulAssign for Isize<O>
impl<O: ByteOrder> MulAssign for Isize<O>
source§fn mul_assign(&mut self, rhs: Isize<O>)
fn mul_assign(&mut self, rhs: Isize<O>)
*=
operation. Read moresource§impl<O: ByteOrder> PartialEq<[u8; 8]> for Isize<O>
impl<O: ByteOrder> PartialEq<[u8; 8]> for Isize<O>
source§impl<O: ByteOrder> PartialEq<Isize<O>> for [u8; 8]
impl<O: ByteOrder> PartialEq<Isize<O>> for [u8; 8]
source§impl<O: PartialEq> PartialEq for Isize<O>
impl<O: PartialEq> PartialEq for Isize<O>
source§impl<O: ByteOrder> RemAssign for Isize<O>
impl<O: ByteOrder> RemAssign for Isize<O>
source§fn rem_assign(&mut self, rhs: Isize<O>)
fn rem_assign(&mut self, rhs: Isize<O>)
%=
operation. Read moresource§impl<O: ByteOrder> ShlAssign for Isize<O>
impl<O: ByteOrder> ShlAssign for Isize<O>
source§fn shl_assign(&mut self, rhs: Isize<O>)
fn shl_assign(&mut self, rhs: Isize<O>)
<<=
operation. Read moresource§impl<O: ByteOrder> ShrAssign for Isize<O>
impl<O: ByteOrder> ShrAssign for Isize<O>
source§fn shr_assign(&mut self, rhs: Isize<O>)
fn shr_assign(&mut self, rhs: Isize<O>)
>>=
operation. Read moresource§impl<O: ByteOrder> SubAssign for Isize<O>
impl<O: ByteOrder> SubAssign for Isize<O>
source§fn sub_assign(&mut self, rhs: Isize<O>)
fn sub_assign(&mut self, rhs: Isize<O>)
-=
operation. Read more