eternal_iterator 0.1.4

Trait implementation to promise that the iterator iterates forever.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28

# eternal_iterator

[![Test Status](https://github.com/yasuo-ozu/eternal_iterator/workflows/Tests/badge.svg?event=push)](https://github.com/yasuo-ozu/eternal_iterator/actions)
[![Crate](https://img.shields.io/crates/v/eternal_iterator.svg)](https://crates.io/crates/eternal_iterator)
[![Docs](https://docs.rs/eternal_iterator/badge.svg)](https://docs.rs/eternal_iterator)
[![Minimum rustc version](https://img.shields.io/badge/rustc-1.54+-lightgray.svg)]()

This Rust crate provides EternalIterator trait, which promises that the iterator
iterates forever.

```rs
let mut it = core::iter::repeat(123_i32).map(|i| i * 2)
		.enumerate().skip(5).step_by(2).zip(core::iter::once(3).chain(10..));
assert_eq!(it.next_eternal(), ((5, 246), 3));
assert_eq!(it.next_eternal(), ((7, 246), 10));
assert_eq!(it.next(), Some(((9, 246), 11)));
assert_eq!(it.next_eternal(), ((11, 246), 12));
```

## generating fixed-size array

You can initialize arbitrary fixed-size array with eternal_iterator.

```rs
use eternal_iterator::prelude::*;
let arr: [i32; 5] = (0..).next_array();
assert_eq!(arr, [0, 1, 2, 3, 4]);
```