#[non_exhaustive]
pub struct Random { pub mt: [u32; 624], pub mti: usize, }
Expand description

The Random struct is used to generate random numbers using the Mersenne Twister algorithm.

It contains an array of unsigned 32-bit integers and an index used to generate random numbers. The array contains 624 elements and the index is used to generate random numbers from the array.

The index is incremented after each random number is generated. When the index reaches 624, the array is reinitialized and the index is reset to 0.

Fields (Non-exhaustive)§

This struct is marked as non-exhaustive
Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.
§mt: [u32; 624]

The array of unsigned 32-bit integers used to generate random numbers

§mti: usize

The current index of the array used in the generation of random numbers

Implementations§

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impl Random

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pub fn bool(&mut self, probability: f64) -> bool

Returns a random bool with a probability that can be set.

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pub fn bytes(&mut self, len: usize) -> Vec<u8>

Returns a vector of random bytes of the given length

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pub fn char(&mut self) -> char

Returns a random char within the range ‘a’..=‘z’

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

Returns a random element from a slice of values

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pub fn float(&mut self) -> f32

Returns a random float.

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pub fn int(&mut self, min: i32, max: i32) -> i32

Returns a random integer within the given range

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pub fn uint(&mut self, min: u32, max: u32) -> u32

Returns a random unsigned integer within the given range

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pub fn double(&mut self) -> f64

Returns a random double.

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pub fn mti(&self) -> usize

Return the value of the mti field

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pub fn set_mti(&mut self, value: usize)

Set the value of the mti field

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pub fn new() -> Random

Returns new random number generator

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pub fn pseudo(&mut self) -> u32

Returns pseudo random number

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pub fn rand(&mut self) -> u32

Returns a random 32-bit unsigned integer.

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pub fn random_range(&mut self, min: u32, max: u32) -> u32

Returns a random 32-bit unsigned integer within a given range.

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pub fn range(&mut self, min: i32, max: i32) -> i32

Returns a random number within a given range.

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pub fn seed(&mut self, seed: u32)

Seeds the random number generator with a given value.

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pub fn twist(&mut self)

Twists the state of the random number generator.

Trait Implementations§

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impl Clone for Random

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fn clone(&self) -> Random

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Random

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fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter. Read more
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impl Default for Random

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fn default() -> Random

Returns a default random number generator

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impl Display for Random

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fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Returns a formatted string representation of the Random struct.

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impl Hash for Random

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fn hash<__H>(&self, state: &mut __H)
where __H: Hasher,

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl Ord for Random

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fn cmp(&self, other: &Random) -> Ordering

This method returns an Ordering between self and other. Read more
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fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized + PartialOrd,

Restrict a value to a certain interval. Read more
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impl PartialEq for Random

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fn eq(&self, other: &Random) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialOrd for Random

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fn partial_cmp(&self, other: &Random) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl Eq for Random

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impl StructuralEq for Random

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impl StructuralPartialEq for Random

Auto Trait Implementations§

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<R, P> ReadPrimitive<R> for P
where R: Read + ReadEndian<P>, P: Default,

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fn read_from_little_endian(read: &mut R) -> Result<Self, Error>

Read this value from the supplied reader. Same as ReadEndian::read_from_little_endian().
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fn read_from_big_endian(read: &mut R) -> Result<Self, Error>

Read this value from the supplied reader. Same as ReadEndian::read_from_big_endian().
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fn read_from_native_endian(read: &mut R) -> Result<Self, Error>

Read this value from the supplied reader. Same as ReadEndian::read_from_native_endian().
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T> ToString for T
where T: Display + ?Sized,

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default fn to_string(&self) -> String

Converts the given value to a String. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V