pub struct DefaultHasher(/* private fields */);Available on crate feature
std only.Expand description
The default Hasher used by RandomState.
The internal algorithm is not specified, and so it and its hashes should not be relied upon over releases.
Implementations§
Source§impl DefaultHasher
impl DefaultHasher
1.13.0 · Sourcepub fn new() -> DefaultHasher
pub fn new() -> DefaultHasher
Creates a new DefaultHasher.
This hasher is not guaranteed to be the same as all other
DefaultHasher instances, but is the same as all other DefaultHasher
instances created through new or default.
Trait Implementations§
1.7.0 · Source§impl Clone for DefaultHasher
impl Clone for DefaultHasher
Source§fn clone(&self) -> DefaultHasher
fn clone(&self) -> DefaultHasher
Returns a copy of the value. Read more
1.0.0 · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source. Read more1.7.0 · Source§impl Debug for DefaultHasher
impl Debug for DefaultHasher
1.13.0 · Source§impl Default for DefaultHasher
impl Default for DefaultHasher
Source§fn default() -> DefaultHasher
fn default() -> DefaultHasher
Creates a new DefaultHasher using new.
See its documentation for more.
1.13.0 · Source§impl Hasher for DefaultHasher
impl Hasher for DefaultHasher
Source§fn write_str(&mut self, s: &str)
fn write_str(&mut self, s: &str)
🔬This is a nightly-only experimental API. (
hasher_prefixfree_extras)Writes a single
str into this hasher. Read more1.26.0 · 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 Freeze for DefaultHasher
impl RefUnwindSafe for DefaultHasher
impl Send for DefaultHasher
impl Sync for DefaultHasher
impl Unpin for DefaultHasher
impl UnwindSafe for DefaultHasher
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§impl<T> ArchivePointee for T
impl<T> ArchivePointee for T
§type ArchivedMetadata = ()
type ArchivedMetadata = ()
The archived version of the pointer metadata for this type.
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_: &<T as ArchivePointee>::ArchivedMetadata,
) -> <T as Pointee>::Metadata
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Converts some archived metadata to the pointer metadata for itself.
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Mutably borrows from an owned value. Read more
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impl<T> ByteSized for T
Source§const BYTE_ALIGN: usize = _
const BYTE_ALIGN: usize = _
The alignment of this type in bytes.
Source§fn byte_align(&self) -> usize ⓘ
fn byte_align(&self) -> usize ⓘ
Returns the alignment of this type in bytes.
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Source§const NEEDS_DROP: bool = _
const NEEDS_DROP: bool = _
Know whether dropping values of this type matters, in compile-time.
Source§fn mem_align_of_val(&self) -> usize ⓘ
fn mem_align_of_val(&self) -> usize ⓘ
Returns the alignment of the pointed-to value in bytes. Read more
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fn mem_size_of_val(&self) -> usize ⓘ
Returns the size of the pointed-to value in bytes. Read more
Source§fn mem_needs_drop(&self) -> bool
fn mem_needs_drop(&self) -> bool
Returns
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Available on crate feature
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unsafe fn mem_transmute_copy<Src, Dst>(src: &Src) -> Dst
Available on crate feature
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§unsafe fn is_niched(niched: *const NichedOption<T, N1>) -> bool
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