[−][src]Struct rand::StdRng

pub struct StdRng { /* fields omitted */ }

The standard RNG. This is designed to be efficient on the current platform.

Methods

`impl StdRng`
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`pub fn new() -> Result<StdRng, Error>`
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Create a randomly seeded instance of StdRng.

This is a very expensive operation as it has to read randomness from the operating system and use this in an expensive seeding operation. If one is only generating a small number of random numbers, or doesn't need the utmost speed for generating each number, thread_rng and/or random may be more appropriate.

Reading the randomness from the OS may fail, and any error is propagated via the io::Result return value.

Trait Implementations

`impl Copy for StdRng`
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`impl Debug for StdRng`
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`impl Clone for StdRng`
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`fn clone_from(&mut self, source: &Self)`
1.0.0
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Performs copy-assignment from source. Read more

`impl Rng for StdRng`
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`fn next_f32(&mut self) -> f32`
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Return the next random f32 selected from the half-open interval [0, 1). Read more

`fn next_f64(&mut self) -> f64`
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Return the next random f64 selected from the half-open interval [0, 1). Read more

`fn fill_bytes(&mut self, dest: &mut [u8])`
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Fill dest with random data. Read more

`fn gen<T>(&mut self) -> T where T: Rand,`
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Return a random value of a Rand type. Read more

ⓘImportant traits for Generator<'a, T, R>
Important traits for Generator<'a, T, R>
`impl<'a, T, R> Iterator for Generator<'a, T, R> where R: Rng, T: Rand, type Item = T;`
`fn gen_iter<T>(&'a mut self) -> Generator<'a, T, Self> where T: Rand,`
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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>,`
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Generate a random value in the range [low, high). Read more

`fn gen_weighted_bool(&mut self, n: u32) -> bool`
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Return a bool with a 1 in n chance of true Read more

ⓘImportant traits for AsciiGenerator<'a, R>
Important traits for AsciiGenerator<'a, R>
`impl<'a, R> Iterator for AsciiGenerator<'a, R> where R: Rng, type Item = char;`
`fn gen_ascii_chars(&'a mut self) -> AsciiGenerator<'a, Self>`
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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>`
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Return a random element from values. Read more

`fn choose_mut<T>(&mut self, values: &'a mut [T]) -> Option<&'a mut T>`
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Return a mutable pointer to a random element from values. Read more

`fn shuffle<T>(&mut self, values: &mut [T])`
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Shuffle a mutable slice in place. Read more

`impl<'a> SeedableRng<&'a [usize]> for StdRng`
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Auto Trait Implementations

`impl Send for StdRng`

`impl Sync for StdRng`

Blanket Implementations

`impl<T> From for T`
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`impl<T, U> Into for T where U: From<T>,`
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`impl<T> ToOwned for T where T: Clone,`
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`type Owned = T`

`impl<T, U> TryFrom for T where T: From<U>,`
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`type Error = !`

🔬 This is a nightly-only experimental API. (try_from)

The type returned in the event of a conversion error.

`impl<T> Borrow for T where T: ?Sized,`
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`impl<T> BorrowMut for T where T: ?Sized,`
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`impl<T, U> TryInto for T where U: TryFrom<T>,`
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`type Error = <U as TryFrom<T>>::Error`

🔬 This is a nightly-only experimental API. (try_from)

The type returned in the event of a conversion error.

[−][src]Struct rand::StdRng

Methods

impl StdRng[src]

pub fn new() -> Result<StdRng, Error>[src]

Trait Implementations

impl Copy for StdRng[src]

impl Debug for StdRng[src]

fn fmt(&self, f: &mut Formatter) -> Result<(), Error>[src]

impl Clone for StdRng[src]

fn clone(&self) -> StdRng[src]

fn clone_from(&mut self, source: &Self)1.0.0[src]

impl Rng for StdRng[src]

fn next_u32(&mut self) -> u32[src]

fn next_u64(&mut self) -> u64[src]

fn next_f32(&mut self) -> f32[src]

fn next_f64(&mut self) -> f64[src]

fn fill_bytes(&mut self, dest: &mut [u8])[src]

fn gen<T>(&mut self) -> T where T: Rand, [src]

ⓘImportant traits for Generator<'a, T, R>Important traits for Generator<'a, T, R>impl<'a, T, R> Iterator for Generator<'a, T, R> where R: Rng, T: Rand, type Item = T;fn gen_iter<T>(&'a mut self) -> Generator<'a, T, Self> where T: Rand, [src]

Important traits for Generator<'a, T, R>

fn gen_range<T>(&mut self, low: T, high: T) -> T where T: SampleRange + PartialOrd<T>, [src]

fn gen_weighted_bool(&mut self, n: u32) -> bool[src]

ⓘImportant traits for AsciiGenerator<'a, R>Important traits for AsciiGenerator<'a, R>impl<'a, R> Iterator for AsciiGenerator<'a, R> where R: Rng, type Item = char;fn gen_ascii_chars(&'a mut self) -> AsciiGenerator<'a, Self>[src]

Important traits for AsciiGenerator<'a, R>

fn choose<T>(&mut self, values: &'a [T]) -> Option<&'a T>[src]

fn choose_mut<T>(&mut self, values: &'a mut [T]) -> Option<&'a mut T>[src]

fn shuffle<T>(&mut self, values: &mut [T])[src]

impl<'a> SeedableRng<&'a [usize]> for StdRng[src]

fn reseed(&mut self, seed: &'a [usize])[src]

fn from_seed(seed: &'a [usize]) -> StdRng[src]

Auto Trait Implementations

impl Send for StdRng

impl Sync for StdRng

Blanket Implementations

impl<T> From for T[src]

fn from(t: T) -> T[src]

impl<T, U> Into for T where U: From<T>, [src]

fn into(self) -> U[src]

impl<T> ToOwned for T where T: Clone, [src]

type Owned = T

fn to_owned(&self) -> T[src]

fn clone_into(&self, target: &mut T)[src]

impl<T, U> TryFrom for T where T: From<U>, [src]

type Error = !

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]

impl<T> Borrow for T where T: ?Sized, [src]

fn borrow(&self) -> &T[src]

impl<T> BorrowMut for T where T: ?Sized, [src]

fn borrow_mut(&mut self) -> &mut T[src]

impl<T, U> TryInto for T where U: TryFrom<T>, [src]

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>[src]

impl<T> Any for T where T: 'static + ?Sized, [src]

fn get_type_id(&self) -> TypeId[src]

`impl StdRng`
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`pub fn new() -> Result<StdRng, Error>`
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`impl Copy for StdRng`
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`impl Debug for StdRng`
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`fn fmt(&self, f: &mut Formatter) -> Result<(), Error>`
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`impl Clone for StdRng`
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`fn clone(&self) -> StdRng`
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`fn clone_from(&mut self, source: &Self)`
1.0.0
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`impl Rng for StdRng`
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`fn next_u32(&mut self) -> u32`
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`fn next_u64(&mut self) -> u64`
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`fn next_f32(&mut self) -> f32`
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`fn next_f64(&mut self) -> f64`
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`fn fill_bytes(&mut self, dest: &mut [u8])`
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`fn gen<T>(&mut self) -> T where T: Rand,`
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ⓘImportant traits for Generator<'a, T, R>
Important traits for Generator<'a, T, R>
`impl<'a, T, R> Iterator for Generator<'a, T, R> where R: Rng, T: Rand, type Item = T;`
`fn gen_iter<T>(&'a mut self) -> Generator<'a, T, Self> where T: Rand,`
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`fn gen_range<T>(&mut self, low: T, high: T) -> T where T: SampleRange + PartialOrd<T>,`
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`fn gen_weighted_bool(&mut self, n: u32) -> bool`
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ⓘImportant traits for AsciiGenerator<'a, R>
Important traits for AsciiGenerator<'a, R>
`impl<'a, R> Iterator for AsciiGenerator<'a, R> where R: Rng, type Item = char;`
`fn gen_ascii_chars(&'a mut self) -> AsciiGenerator<'a, Self>`
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`fn choose<T>(&mut self, values: &'a [T]) -> Option<&'a T>`
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`fn choose_mut<T>(&mut self, values: &'a mut [T]) -> Option<&'a mut T>`
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`fn shuffle<T>(&mut self, values: &mut [T])`
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`impl<'a> SeedableRng<&'a [usize]> for StdRng`
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`fn reseed(&mut self, seed: &'a [usize])`
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`fn from_seed(seed: &'a [usize]) -> StdRng`
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`impl Send for StdRng`

`impl Sync for StdRng`

`impl<T> From for T`
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`fn from(t: T) -> T`
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`impl<T, U> Into for T where U: From<T>,`
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`fn into(self) -> U`
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`impl<T> ToOwned for T where T: Clone,`
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`type Owned = T`

`fn to_owned(&self) -> T`
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`fn clone_into(&self, target: &mut T)`
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`impl<T, U> TryFrom for T where T: From<U>,`
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`type Error = !`

`fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>`
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`impl<T> Borrow for T where T: ?Sized,`
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`fn borrow(&self) -> &T`
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`impl<T> BorrowMut for T where T: ?Sized,`
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`fn borrow_mut(&mut self) -> &mut T`
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`impl<T, U> TryInto for T where U: TryFrom<T>,`
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`type Error = <U as TryFrom<T>>::Error`

`fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>`
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`impl<T> Any for T where T: 'static + ?Sized,`
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`fn get_type_id(&self) -> TypeId`
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