[−][src]Crate array_iterator
Allows creating owning iterators out of arrays. This is useful for fixed-size iterators. Try writing the following function:
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fn pair_iter(a: i32, b: i32) -> impl Iterator<Item=i32> { unimplemented!() }
This is hard to do because most iterators don't own the values they are iterating over. One ugly solution is:
fn pair_iter(a: i32, b: i32) -> impl Iterator<Item=i32> { Some(a).into_iter().chain(Some(b)) } assert_eq!(pair_iter(1, 2).collect::<Vec<_>>(), &[1, 2]);
This crate allows turning arrays into owning iterators, perfect for short, fixed-size iterators.
use array_iterator::ArrayIterator; fn pair_iter(a: i32, b: i32) -> impl Iterator<Item=i32> { ArrayIterator::new([a, b]) } assert_eq!(pair_iter(1, 2).collect::<Vec<_>>(), &[1, 2]);
Structs
ArrayIterator |
Traits
Array | Trait for array-like types that can be used as an iterator. |