## Bug: 270156988

Clone this repo:
1. c7c9c6a Make crate apex-available by Ted Bauer · 3 weeks ago main master
2. 5d6ab7a Revert "Upgrade fastrand to 2.0.1" am: a329b7310b by Hyun Jae Moon · 10 weeks ago emu-34-2-dev
3. a329b73 Revert "Upgrade fastrand to 2.0.1" by Hyun Jae Moon · 10 weeks ago emu-34-3-release
4. e614fb3 Upgrade fastrand to 2.0.1 am: f00a459d95 by Jeff Vander Stoep · 10 weeks ago
5. f00a459 Upgrade fastrand to 2.0.1 by Jeff Vander Stoep · 10 weeks ago

# fastrand

A simple and fast random number generator.

The implementation uses Wyrand, a simple and fast generator but not cryptographically secure.

## Examples

Flip a coin:

```if fastrand::bool() {
} else {
println!("tails");
}
```

Generate a random `i32`:

```let num = fastrand::i32(..);
```

Choose a random element in an array:

```let v = vec![1, 2, 3, 4, 5];
let i = fastrand::usize(..v.len());
let elem = v[i];
```

Shuffle an array:

```let mut v = vec![1, 2, 3, 4, 5];
fastrand::shuffle(&mut v);
```

Generate a random `Vec` or `String`:

```use std::iter::repeat_with;

let v: Vec<i32> = repeat_with(|| fastrand::i32(..)).take(10).collect();
let s: String = repeat_with(fastrand::alphanumeric).take(10).collect();
```

To get reproducible results on every run, initialize the generator with a seed:

```// Pick an arbitrary number as seed.
fastrand::seed(7);

// Now this prints the same number on every run:
println!("{}", fastrand::u32(..));
```

To be more efficient, create a new `Rng` instance instead of using the thread-local generator:

```use std::iter::repeat_with;

let rng = fastrand::Rng::new();
let mut bytes: Vec<u8> = repeat_with(|| rng.u8(..)).take(10_000).collect();
```