How to iterate over and filter an array?

Question

I\'m trying to write a program that involves filtering and folding over arrays. I\'ve been using The Rust Programming Language, first edition as a reference, but I don\'t un

Answer 1

As Shepmaster and bluss said, you can check the documentation for the array type, which mentions:

Arrays of sizes from 0 to 32 (inclusive) implement the following traits if the element type allows it:

• IntoIterator (implemented for &[T; N] and &mut [T; N])

As it says, this is only for references, and is reflected in its Item type: type Item = &'a T and type Item = &'a mut T.