shuffle 0.2.1

Implementation of various shuffling algorithms over slices.
Documentation 
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//! The `Shuffler` trait.

extern crate alloc;

use alloc::vec::Vec;

#[cfg(feature = "rand-0_8")]
use rand_0_8 as rand;

#[cfg(feature = "rand-0_9")]
use rand_0_9 as rand;

/// A trait defining `Shuffler` objects that can be used for shuffling data
/// in various manners
pub trait Shuffler<T> {
    /// Shuffle the passed data in-place using randomness from the provided
    /// `RngCore`.
    fn shuffle<R>(&mut self, data: &mut Vec<T>, rng: &mut R) -> Result<(), &str>
    where
        T: Clone,
        R: rand::RngCore + ?Sized;
}