[−][src]Struct java_rand::Random
Methods
impl Random
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pub fn new(seed: u64) -> Self
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pub fn set_seed(&mut self, seed: u64)
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Sets the seed to seed
. This is equivalent to Random::new
pub fn next(&mut self, bits: u8) -> i32
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Steps the RNG, returning up to 48 bits.
Panics
If the amount of requested bits is over 48, this function panics. Use next_i64/next_u64 instead, or multiple calls.
pub fn next_bytes(&mut self, bytes: &mut [u8])
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Fills the byte array with random bytes.
pub fn next_i32(&mut self) -> i32
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Returns a uniformly distributed signed 32-bit integer.
pub fn next_u32(&mut self) -> u32
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Returns a uniformly distributed unsigned 32-bit integer.
pub fn next_i32_bound(&mut self, max: i32) -> i32
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Returns a positive random number in the range [0, max), up to 2^31.
The range of the return value is represented by the value 0 <= value < max
.
A maximum of less than 1 is invalid because then no value would satisfy the range.
Panics
If max
is less than 1, the function panics.
pub fn next_u32_bound(&mut self, max: u32) -> u32
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Returns a positive random number in the range [0, max), up to 2^31.
The range of the return value is represented by the value 0 <= value < max
.
A maximum of 0 is invalid because then no value would satisfy the range.
Maximums of 2^31 or greater are not supported in Java.
Panics
If max
reinterpreted as a signed 32-bit integer is less than 1, the function panics.
pub fn next_i64(&mut self) -> i64
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Returns a uniformly distributed signed 64-bit integer.
pub fn next_u64(&mut self) -> u64
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Returns a uniformly distributed unsigned 64-bit integer.
pub fn next_bool(&mut self) -> bool
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Returns a boolean value that has an equal chance of being true or false.
pub fn next_f32(&mut self) -> f32
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Returns a f32 uniformly distributed between 0.0 and 1.0.
pub fn next_f64(&mut self) -> f64
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Returns a f64 uniformly distributed between 0.0 and 1.0.
pub fn next_gaussian(&mut self) -> f64
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Returns a gaussian-distributed number with a mean of 0.0 and standard deviation of 1.0.
Trait Implementations
impl Clone for Random
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fn clone(&self) -> Random
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fn clone_from(&mut self, source: &Self)
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Performs copy-assignment from source
. Read more
impl Debug for Random
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Auto Trait Implementations
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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U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
impl<T, U> TryFrom 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> Borrow for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut for T where
T: ?Sized,
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T: ?Sized,
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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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion 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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T: 'static + ?Sized,