[−][src]Struct fastrand::Rng
A random number generator.
Implementations
impl Rng
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pub fn new() -> Rng
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Creates a new random number generator.
pub fn alphabetic(&self) -> char
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Generates a random char
in ranges a-z and A-Z.
pub fn alphanumeric(&self) -> char
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Generates a random char
in ranges a-z, A-Z and 0-9.
pub fn bool(&self) -> bool
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Generates a random bool
.
pub fn digit(&self, base: u32) -> char
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Generates a random digit in the given base
.
Digits are represented by char
s in ranges 0-9 and a-z.
Panics if the base is zero or greater than 36.
pub fn f32(&self) -> f32
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Generates a random f32
in range 0..1
.
pub fn f64(&self) -> f64
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Generates a random f64
in range 0..1
.
pub fn i8(&self, range: impl RangeBounds<i8>) -> i8
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Generates a random i8
in the given range.
Panics if the range is empty.
pub fn i16(&self, range: impl RangeBounds<i16>) -> i16
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Generates a random i16
in the given range.
Panics if the range is empty.
pub fn i32(&self, range: impl RangeBounds<i32>) -> i32
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Generates a random i32
in the given range.
Panics if the range is empty.
pub fn i64(&self, range: impl RangeBounds<i64>) -> i64
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Generates a random i64
in the given range.
Panics if the range is empty.
pub fn i128(&self, range: impl RangeBounds<i128>) -> i128
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Generates a random i128
in the given range.
Panics if the range is empty.
pub fn isize(&self, range: impl RangeBounds<isize>) -> isize
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Generates a random isize
in the given range.
Panics if the range is empty.
pub fn lowercase(&self) -> char
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Generates a random char
in range a-z.
pub fn seed(&self, seed: u64)
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Initializes this generator with the given seed.
pub fn shuffle<T>(&self, slice: &mut [T])
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Shuffles a slice randomly.
pub fn u8(&self, range: impl RangeBounds<u8>) -> u8
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Generates a random u8
in the given range.
Panics if the range is empty.
pub fn u16(&self, range: impl RangeBounds<u16>) -> u16
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Generates a random u16
in the given range.
Panics if the range is empty.
pub fn u32(&self, range: impl RangeBounds<u32>) -> u32
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Generates a random u32
in the given range.
Panics if the range is empty.
pub fn u64(&self, range: impl RangeBounds<u64>) -> u64
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Generates a random u64
in the given range.
Panics if the range is empty.
pub fn u128(&self, range: impl RangeBounds<u128>) -> u128
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Generates a random u128
in the given range.
Panics if the range is empty.
pub fn usize(&self, range: impl RangeBounds<usize>) -> usize
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Generates a random usize
in the given range.
Panics if the range is empty.
pub fn uppercase(&self) -> char
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Generates a random char
in range A-Z.
Trait Implementations
Auto Trait Implementations
impl !RefUnwindSafe for Rng
impl Send for Rng
impl !Sync for Rng
impl Unpin for Rng
impl UnwindSafe for Rng
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,