Struct secp256k1_zkp::rand::rngs::adapter::ReadRng [−][src]
pub struct ReadRng<R> { /* fields omitted */ }
An RNG that reads random bytes straight from any type supporting
std::io::Read
, for example files.
This will work best with an infinite reader, but that is not required.
This can be used with /dev/urandom
on Unix but it is recommended to use
OsRng
instead.
Panics
ReadRng
uses std::io::Read::read_exact
, which retries on interrupts.
All other errors from the underlying reader, including when it does not
have enough data, will only be reported through try_fill_bytes
.
The other RngCore
methods will panic in case of an error.
Example
use rand::Rng; use rand::rngs::adapter::ReadRng; let data = vec![1, 2, 3, 4, 5, 6, 7, 8]; let mut rng = ReadRng::new(&data[..]); println!("{:x}", rng.gen::<u32>());
Implementations
Trait Implementations
Auto Trait Implementations
impl<R> RefUnwindSafe for ReadRng<R> where
R: RefUnwindSafe,
impl<R> RefUnwindSafe for ReadRng<R> where
R: RefUnwindSafe,
impl<R> UnwindSafe for ReadRng<R> where
R: UnwindSafe,
impl<R> UnwindSafe for ReadRng<R> where
R: UnwindSafe,
Blanket Implementations
impl<R> Rng for R where
R: RngCore + ?Sized,
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impl<R> Rng for R where
R: RngCore + ?Sized,
[src]pub fn gen<T>(&mut self) -> T where
Standard: Distribution<T>,
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Standard: Distribution<T>,
pub fn gen_range<T, B1, B2>(&mut self, low: B1, high: B2) -> T where
T: SampleUniform,
B1: SampleBorrow<T>,
B2: SampleBorrow<T>,
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T: SampleUniform,
B1: SampleBorrow<T>,
B2: SampleBorrow<T>,
pub fn sample<T, D>(&mut self, distr: D) -> T where
D: Distribution<T>,
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D: Distribution<T>,
pub fn sample_iter<T, D>(&'a mut self, distr: &'a D) -> DistIter<'a, D, Self, T>ⓘ where
D: Distribution<T>,
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D: Distribution<T>,
pub fn fill<T>(&mut self, dest: &mut T) where
T: AsByteSliceMut + ?Sized,
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T: AsByteSliceMut + ?Sized,
pub fn try_fill<T>(&mut self, dest: &mut T) -> Result<(), Error> where
T: AsByteSliceMut + ?Sized,
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T: AsByteSliceMut + ?Sized,