pub struct F32<O>(/* private fields */);
Expand description
A 32-bit floating point number stored in a given byte order.
F32
is like the native f32
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 F32
can be constructed using
the new
method, and its contained value can be obtained as a native
f32
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 F32
has endianness O
and that, b) the layout of f32
has
the platform’s native endianness.
F32
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§
Source§impl<O> F32<O>
impl<O> F32<O>
Sourcepub const ZERO: F32<O> = _
pub const ZERO: F32<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; 4]) -> F32<O>
pub const fn from_bytes(bytes: [u8; 4]) -> F32<O>
Constructs a new value from bytes which are already in the
endianness O
.
Source§impl<O: ByteOrder> F32<O>
impl<O: ByteOrder> F32<O>
Sourcepub fn new(n: f32) -> F32<O>
pub fn new(n: f32) -> F32<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 F32<O>
impl<O: ByteOrder> AddAssign for F32<O>
Source§fn add_assign(&mut self, rhs: F32<O>)
fn add_assign(&mut self, rhs: F32<O>)
+=
operation. Read moreSource§impl<O> AsBytes for F32<O>
impl<O> AsBytes for F32<O>
Source§impl<O: ByteOrder> DivAssign for F32<O>
impl<O: ByteOrder> DivAssign for F32<O>
Source§fn div_assign(&mut self, rhs: F32<O>)
fn div_assign(&mut self, rhs: F32<O>)
/=
operation. Read moreSource§impl<O> FromBytes for F32<O>
impl<O> FromBytes for F32<O>
Source§fn mut_from_prefix(bytes: &mut [u8]) -> Option<&mut Self>
fn mut_from_prefix(bytes: &mut [u8]) -> Option<&mut Self>
Source§fn mut_from_suffix(bytes: &mut [u8]) -> Option<&mut Self>
fn mut_from_suffix(bytes: &mut [u8]) -> Option<&mut Self>
Source§fn slice_from_prefix(bytes: &[u8], count: usize) -> Option<(&[Self], &[u8])>where
Self: Sized,
fn slice_from_prefix(bytes: &[u8], count: usize) -> Option<(&[Self], &[u8])>where
Self: Sized,
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,
fn slice_from_suffix(bytes: &[u8], count: usize) -> Option<(&[u8], &[Self])>where
Self: Sized,
bytes
as a &[Self]
with length
equal to count
without copying. Read moreSource§fn mut_slice_from(bytes: &mut [u8]) -> Option<&mut [Self]>
fn mut_slice_from(bytes: &mut [u8]) -> Option<&mut [Self]>
Source§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> FromZeroes for F32<O>
impl<O> FromZeroes for F32<O>
Source§impl<O: ByteOrder> MulAssign for F32<O>
impl<O: ByteOrder> MulAssign for F32<O>
Source§fn mul_assign(&mut self, rhs: F32<O>)
fn mul_assign(&mut self, rhs: F32<O>)
*=
operation. Read moreSource§impl<O: ByteOrder> RemAssign for F32<O>
impl<O: ByteOrder> RemAssign for F32<O>
Source§fn rem_assign(&mut self, rhs: F32<O>)
fn rem_assign(&mut self, rhs: F32<O>)
%=
operation. Read moreSource§impl<O: ByteOrder> SubAssign for F32<O>
impl<O: ByteOrder> SubAssign for F32<O>
Source§fn sub_assign(&mut self, rhs: F32<O>)
fn sub_assign(&mut self, rhs: F32<O>)
-=
operation. Read moreimpl<O: Copy> Copy for F32<O>
impl<O: Eq> Eq for F32<O>
impl<O> StructuralPartialEq for F32<O>
impl<O> Unaligned for F32<O>
Auto Trait Implementations§
impl<O> Freeze for F32<O>
impl<O> RefUnwindSafe for F32<O>where
O: RefUnwindSafe,
impl<O> Send for F32<O>where
O: Send,
impl<O> Sync for F32<O>where
O: Sync,
impl<O> Unpin for F32<O>where
O: Unpin,
impl<O> UnwindSafe for F32<O>where
O: UnwindSafe,
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
Layout§
Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...)
attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.
Size: 4 bytes