# Struct rand::reseeding::ReseedingRng [−] [src]

    pub struct ReseedingRng<R, Rsdr> {
        pub reseeder: Rsdr,
        // some fields omitted
    }

A wrapper around any RNG which reseeds the underlying RNG after it has generated a certain number of random bytes.

## Fields

`reseeder: Rsdr`

Controls the behaviour when reseeding the RNG.

## Methods

### `impl<R: Rng, Rsdr: Reseeder<R>> ReseedingRng<R, Rsdr>`
[src]

#### `fn new(
rng: R,
generation_threshold: u64,
reseeder: Rsdr
) -> ReseedingRng<R, Rsdr>`

Create a new `ReseedingRng` with the given parameters.

# Arguments

- `rng`: the random number generator to use.
- `generation_threshold`: the number of bytes of entropy at which to reseed the RNG.
- `reseeder`: the reseeding object to use.

#### `fn reseed_if_necessary(&mut self)`

Reseed the internal RNG if the number of bytes that have been generated exceed the threshold.

## Trait Implementations

### `impl<R: Rng, Rsdr: Reseeder<R>> Rng for ReseedingRng<R, Rsdr>`
[src]

#### `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 fill_bytes(&mut self, dest: &mut [u8])`

Fill `dest` with random data. 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 gen<T: Rand>(&mut self) -> T where
Self: Sized,`

Return a random value of a `Rand` type. Read more

#### `fn gen_iter<'a, T: Rand>(&'a mut self) -> Generator<'a, T, Self> where
Self: Sized,`

Return an iterator that will yield an infinite number of randomly generated items. Read more

#### `fn gen_range<T: PartialOrd + SampleRange>(&mut self, low: T, high: T) -> T where
Self: Sized,`

Generate a random value in the range [`low`, `high`). Read more

#### `fn gen_weighted_bool(&mut self, n: u32) -> bool where
Self: Sized,`

Return a bool with a 1 in n chance of true Read more

#### `fn gen_ascii_chars<'a>(&'a mut self) -> AsciiGenerator<'a, Self> where
Self: Sized,`

Return an iterator of random characters from the set A-Z,a-z,0-9. Read more

#### `fn choose<'a, T>(&mut self, values: &'a [T]) -> Option<&'a T> where
Self: Sized,`

Return a random element from `values`. Read more

#### `fn choose_mut<'a, T>(&mut self, values: &'a mut [T]) -> Option<&'a mut T> where
Self: Sized,`

Return a mutable pointer to a random element from `values`. Read more

#### `fn shuffle<T>(&mut self, values: &mut [T]) where
Self: Sized,`

Shuffle a mutable slice in place. Read more

### `impl<S, R: SeedableRng<S>, Rsdr: Reseeder<R> + Default> SeedableRng<(Rsdr, S)> for ReseedingRng<R, Rsdr>`
[src]

#### `fn reseed(&mut self, (rsdr, seed): (Rsdr, S))`

Reseed an RNG with the given seed. Read more

#### `fn from_seed((rsdr, seed): (Rsdr, S)) -> ReseedingRng<R, Rsdr>`

Create a new `ReseedingRng` from the given reseeder and seed. This uses a default value for `generation_threshold`.

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