[−][src]Struct rustmt::MT
Contains state of PRNG
Methods
impl MT
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pub fn new() -> MT
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Create new PRNG seeded with the current timestamp
pub fn from_seed(seed: u64) -> MT
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Creates a new generator seeded with the given seed
pub fn seed(&mut self, seed: u64)
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Seed the generator
Newly created MTs are seeded with the current timestamp.
pub fn next(&mut self) -> u64
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Interpolate the next integer using MT19937
This method should not be used for generating random numbers within a specific range. For that use any of the methods prefixed with "rand".
pub fn rand_f32(&mut self) -> f32
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Generate an f32
between 0.0 and 1.0
Example
let mut gen = rustmt::MT::new(); let n = gen.rand_f32(); assert!( n >= 0.0 ); assert!( n <= 1.0 );
pub fn rand_f64(&mut self) -> f64
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Generate an f64
between 0.0 and 1.0
Example
let mut gen = rustmt::MT::new(); let n = gen.rand_f64(); assert!( n >= 0.0 ); assert!( n <= 1.0 );
pub fn rand_i32(&mut self, start: i32, end: i32) -> i32
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Generate an i32
between start-end-1
inclusive
Example
let mut gen = rustmt::MT::new(); let n = gen.rand_i32( 1, 3 ); assert!( n >= 1 ); assert!( n < 3 );
Panics
When start
is greater than or equal to end
pub fn rand_i64(&mut self, start: i64, end: i64) -> i64
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Generate an i64
between start-end-1
inclusive
Example
let mut gen = rustmt::MT::new(); let n = gen.rand_i64( 1, 3 ); assert!( n >= 1 ); assert!( n < 3 );
Panics
When start
is greater than or equal to end
pub fn rand_usize(&mut self, end: usize) -> usize
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Generate a usize
less than end
Example
let mut gen = rustmt::MT::new(); let v = vec![ 1, 2, 3, ]; let n = gen.rand_usize( v.len() ); assert!( n < v.len() );
pub fn shuffle<T>(&mut self, v: &mut Vec<T>)
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Shuffle the given vector
Example
let mut gen = rustmt::MT::new(); let mut people = vec![ "Logan", "Trent", "Cameron", "David", ]; gen.shuffle( &mut people ); println!( "Random person = {}", people[0] );
Auto Trait Implementations
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>,