impl IntoIterator for GenericArray #13
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This allows an array to move its values out through iteration. I find
this especially handy for flat_map, to expand one item into several
without having to allocate a Vec, like the new test:
```rust
fn test_iter_flat_map() {
assert!((0..5).flat_map(|i| arr![i32; 2 * i, 2 * i + 1]).eq(0..10));
}
```
This is a spiritual successor to rust-lang/rust#32871, which was
declined at least until it could use integer generics. GenericArray
fills that gap, though, and could use IntoIterator today.
|
That's useful, thanks! |
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This allows an array to move its values out through iteration. I find this especially handy for
flat_map, to expand one item into several without having to allocate aVec, like the new test:This is a spiritual successor to rust-lang/rust#32871, which was declined at least until it could use integer generics.
GenericArrayfills that gap, though, and could useIntoIteratortoday.