Struct nyx_space::mc::ThreadRng [−][src]
pub struct ThreadRng { /* fields omitted */ }
Expand description
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
Auto Trait Implementations
impl !RefUnwindSafe for ThreadRng
impl !UnwindSafe for ThreadRng
Blanket Implementations
Mutably borrows from an owned value. Read more
Generate a random value in the given range. Read more
Sample a new value, using the given distribution. Read more
Create an iterator that generates values using the given distribution. Read more
Return a bool with a probability p
of being true. Read more
Return a bool with a probability of numerator/denominator
of being
true. I.e. gen_ratio(2, 3)
has chance of 2 in 3, or about 67%, of
returning true. If numerator == denominator
, then the returned value
is guaranteed to be true
. If numerator == 0
, then the returned
value is guaranteed to be false
. Read more
type Output = T
type Output = T
Should always be Self
The inverse inclusion map: attempts to construct self
from the equivalent element of its
superset. Read more
pub fn is_in_subset(&self) -> bool
pub fn is_in_subset(&self) -> bool
Checks if self
is actually part of its subset T
(and can be converted to it).
pub fn to_subset_unchecked(&self) -> SS
pub fn to_subset_unchecked(&self) -> SS
Use with care! Same as self.to_subset
but without any property checks. Always succeeds.
pub fn from_subset(element: &SS) -> SP
pub fn from_subset(element: &SS) -> SP
The inclusion map: converts self
to the equivalent element of its superset.
pub fn vzip(self) -> V