This crate provides a single function, a safe wrapper around [ptr::copy
]
for efficient copying within slices.
Note: As of Rust 1.37, the standard library provides the equivalent
copy_within
method on slices. This crate is only useful for projects that need to
support older versions of Rust.
Copying four bytes within a slice:
```rust let mut bytes = *b"Hello, World!";
copyinplace(&mut bytes, 1..5, 8);
assert_eq!(&bytes, b"Hello, Wello!"); ```