Struct rdrand::RdRand
[−]
[src]
pub struct RdRand(_);
A cryptographically secure pseudo-random number generator.
This generator is a viable replacement to any std::rand generator, however, since nobody has audited Intel hardware yet, the usual disclaimers apply.
It is much faster than OsRng
(and slower than StdRng
), but is only supported on more recent
(since Ivy Bridge) Intel processors.
Methods
impl RdRand
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fn new() -> Result<RdRand, Error>
Build a generator object. The function will only succeed if rdrand
instruction can be
successfully used.
fn next_u16(&self) -> u16
Generate a u16 value.
Trait Implementations
impl Clone for RdRand
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fn clone(&self) -> RdRand
Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
1.0.0
Performs copy-assignment from source
. Read more
impl Copy for RdRand
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impl Rng for RdRand
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fn next_u32(&mut self) -> u32
Return the next random u32. Read more
fn next_u64(&mut self) -> u64
Return the next random u64. Read more
fn next_f32(&mut self) -> f32
Return the next random f32 selected from the half-open interval [0, 1)
. Read more
fn next_f64(&mut self) -> f64
Return the next random f64 selected from the half-open interval [0, 1)
. Read more
fn fill_bytes(&mut self, dest: &mut [u8])
Fill dest
with random data. Read more
fn gen<T>(&mut self) -> T where
T: Rand,
T: Rand,
Return a random value of a Rand
type. Read more
fn gen_iter<T>(&'a mut self) -> Generator<'a, T, Self> where
T: Rand,
T: Rand,
Return an iterator that will yield an infinite number of randomly generated items. Read more
fn gen_range<T>(&mut self, low: T, high: T) -> T where
T: SampleRange + PartialOrd<T>,
T: SampleRange + PartialOrd<T>,
Generate a random value in the range [low
, high
). Read more
fn gen_weighted_bool(&mut self, n: u32) -> bool
Return a bool with a 1 in n chance of true Read more
fn gen_ascii_chars(&'a mut self) -> AsciiGenerator<'a, Self>
Return an iterator of random characters from the set A-Z,a-z,0-9. Read more
fn choose<T>(&mut self, values: &'a [T]) -> Option<&'a T>
Return a random element from values
. Read more
fn choose_mut<T>(&mut self, values: &'a mut [T]) -> Option<&'a mut T>
Return a mutable pointer to a random element from values
. Read more
fn shuffle<T>(&mut self, values: &mut [T])
Shuffle a mutable slice in place. Read more