Struct rand::rngs::ThreadRng [−][src]
A reference to the thread-local generator
An instance can be obtained via thread_rng
or via ThreadRng::default()
.
This handle is safe to use everywhere (including thread-local destructors)
but cannot be passed between threads (is not Send
or Sync
).
ThreadRng
uses the same PRNG as StdRng
for security and performance
and is automatically seeded from OsRng
.
Unlike StdRng
, ThreadRng
uses the ReseedingRng
wrapper to reseed
the PRNG from fresh entropy every 64 kiB of random data as well as after a
fork on Unix (though not quite immediately; see documentation of
ReseedingRng
).
Note that the reseeding is done as an extra precaution against side-channel
attacks and mis-use (e.g. if somehow weak entropy were supplied initially).
The PRNG algorithms used are assumed to be secure.
Trait Implementations
impl Clone for ThreadRng
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impl CryptoRng for ThreadRng
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impl Debug for ThreadRng
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impl Default for ThreadRng
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impl RngCore for ThreadRng
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Auto Trait Implementations
impl !RefUnwindSafe for ThreadRng
impl !Send for ThreadRng
impl !Sync for ThreadRng
impl Unpin for ThreadRng
impl !UnwindSafe for ThreadRng
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn clone_into(&self, target: &mut T)
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<V, T> VZip<V> for T where
V: MultiLane<T>,
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V: MultiLane<T>,