Is memory allocated when passing slice?

Question

Rust

Good day!
Let's say I have an array of bytes and I need to turn it into a string.
To do this, I run through the array to the desired byte, create a slice and pass it to another function.
As I understand it, the slice is just a reference to the elements of the array, which means that memory will not be allocated?
Is an array with references to the elements of another array equal to a slice?

Answer 1

As I understand it, the slice is just a reference to the elements of the array, which means that memory will not be allocated?

If you take out the "boxed slice" (Box<[u8]>, see https://doc.rust-lang.org/reference/types/slice.html ), then regular slices (`&[u8]` and `&mut [u8]`) does not allocate any extra memory - just a pointer to the first element + usesize to store the number of elements.
`[&u8]`? No - at least because it will require space for storing a pointer to each element.
https://doc.rust-lang.org/std/str/fn.from_utf8.html