pub struct Hasher { /* private fields */ }
Expand description
Represents an in-progress CRC32 computation.
Implementations§
source§impl Hasher
impl Hasher
sourcepub fn new() -> Self
pub fn new() -> Self
Create a new Hasher
.
This will perform a CPU feature detection at runtime to select the most optimal implementation for the current processor architecture.
sourcepub fn new_with_initial(init: u32) -> Self
pub fn new_with_initial(init: u32) -> Self
Create a new Hasher
with an initial CRC32 state.
This works just like Hasher::new
, except that it allows for an initial
CRC32 state to be passed in.
sourcepub fn new_with_initial_len(init: u32, amount: u64) -> Self
pub fn new_with_initial_len(init: u32, amount: u64) -> Self
Create a new Hasher
with an initial CRC32 state.
As new_with_initial
, but also accepts a length (in bytes). The
resulting object can then be used with combine
to compute crc(a || b)
from crc(a)
, crc(b)
, and len(b)
.
Trait Implementations§
source§impl Hasher for Hasher
impl Hasher for Hasher
1.26.0 · source§fn write_u128(&mut self, i: u128)
fn write_u128(&mut self, i: u128)
Writes a single
u128
into this hasher.1.3.0 · source§fn write_usize(&mut self, i: usize)
fn write_usize(&mut self, i: usize)
Writes a single
usize
into this hasher.1.26.0 · source§fn write_i128(&mut self, i: i128)
fn write_i128(&mut self, i: i128)
Writes a single
i128
into this hasher.1.3.0 · source§fn write_isize(&mut self, i: isize)
fn write_isize(&mut self, i: isize)
Writes a single
isize
into this hasher.source§fn write_length_prefix(&mut self, len: usize)
fn write_length_prefix(&mut self, len: usize)
🔬This is a nightly-only experimental API. (
hasher_prefixfree_extras
)Writes a length prefix into this hasher, as part of being prefix-free. Read more
Auto Trait Implementations§
impl RefUnwindSafe for Hasher
impl Send for Hasher
impl Sync for Hasher
impl Unpin for Hasher
impl UnwindSafe for Hasher
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
Mutably borrows from an owned value. Read more