Copying memory - Introduction

rust,ignore

# // Copyright 2026 Google LLC
# // SPDX-License-Identifier: Apache-2.0
#
/// Reads bytes from `source` and writes them to `dest`
pub fn copy(dest: &mut [u8], source: &[u8]) { ... }

“Here is our initial function prototype.”

“copy accepts two slices as arguments. dest (destination) is mutable, whereas source is not.”

“Let's see the shapes of sound Rust code.”

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