peekaboo

docs - crates.io

Peekable iterator that allows to peek the next N elements without consuming them.

It's no_std compatible by default. It also doesn't perform any allocations.

Examples

Basic usage:

```rust let xs = [1, 2, 3, 4, 5, 6, 7, 8, 9]; // create an iterator that allows us to peek at the next 4 element let mut iter = xs.iter().peekable_n::<4>();

// peek() lets us see into the future asserteq!(iter.peek::<1>(), Some(&&1)); asserteq!(iter.peek::<3>(), Some(&&3));

// the iterator will not advance until we call next asserteq!(iter.next(), Some(&1)); asserteq!(iter.next(), Some(&2)); ```

Use

Run cargo add peekaboo (if using a Rust version over 1.62), or manually add toml peekaboo = "0.2.0" to your Cargo.toml