Struct RandGenerator

Source

pub struct RandGenerator { /* private fields */ }

Implementations§

Source §

impl RandGenerator

Source

pub const fn new() -> Self

Examples found in repository ?

examples/compat_with_state.rs (line 5)

4fn main() {
5    let randomness = quad_rand::RandGenerator::new();
6
7    let mut vec = vec![1, 2, 3, 4, 5, 6];
8    println!("ordered: {:?}", vec);
9
10    // QuadRand is rand::RngCore implementation, allowing to use all the cool stuff from rand
11    vec.shuffle(&mut QuadRandWithState(&randomness));
12    println!("shuffled: {:?}", vec);
13}

More examples

Hide additional examples

examples/basic_with_state.rs (line 5)

3fn main() {
4    // seed random
5    let randomness = qrand::RandGenerator::new();
6    randomness.srand(12345);
7
8    // get random number from 0 to u32::MAX
9    let x = randomness.rand();
10
11    // get random number from given range
12    let x = randomness.gen_range(0., 1.);
13    assert!(x >= 0. && x < 1.);
14    println!("x={}", x);
15
16    // gen_range works for most of standard number types
17    let x: u8 = randomness.gen_range(64, 128);
18    assert!(x >= 64 && x < 128);
19    println!("x={}", x);
20}

Source

pub fn srand(&self, seed: u64)

Examples found in repository ?

examples/basic_with_state.rs (line 6)

3fn main() {
4    // seed random
5    let randomness = qrand::RandGenerator::new();
6    randomness.srand(12345);
7
8    // get random number from 0 to u32::MAX
9    let x = randomness.rand();
10
11    // get random number from given range
12    let x = randomness.gen_range(0., 1.);
13    assert!(x >= 0. && x < 1.);
14    println!("x={}", x);
15
16    // gen_range works for most of standard number types
17    let x: u8 = randomness.gen_range(64, 128);
18    assert!(x >= 64 && x < 128);
19    println!("x={}", x);
20}

Source

pub fn rand(&self) -> u32

Examples found in repository ?

examples/basic_with_state.rs (line 9)

3fn main() {
4    // seed random
5    let randomness = qrand::RandGenerator::new();
6    randomness.srand(12345);
7
8    // get random number from 0 to u32::MAX
9    let x = randomness.rand();
10
11    // get random number from given range
12    let x = randomness.gen_range(0., 1.);
13    assert!(x >= 0. && x < 1.);
14    println!("x={}", x);
15
16    // gen_range works for most of standard number types
17    let x: u8 = randomness.gen_range(64, 128);
18    assert!(x >= 64 && x < 128);
19    println!("x={}", x);
20}

Source

pub fn gen_range<T>(&self, low: T, high: T) -> T
where T: RandomRange,

Examples found in repository ?

examples/basic_with_state.rs (line 12)

3fn main() {
4    // seed random
5    let randomness = qrand::RandGenerator::new();
6    randomness.srand(12345);
7
8    // get random number from 0 to u32::MAX
9    let x = randomness.rand();
10
11    // get random number from given range
12    let x = randomness.gen_range(0., 1.);
13    assert!(x >= 0. && x < 1.);
14    println!("x={}", x);
15
16    // gen_range works for most of standard number types
17    let x: u8 = randomness.gen_range(64, 128);
18    assert!(x >= 64 && x < 128);
19    println!("x={}", x);
20}