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| -rw-r--r-- | src/doc/book/concurrency.md | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/doc/book/concurrency.md b/src/doc/book/concurrency.md index a783650f8ea..41d8345b720 100644 --- a/src/doc/book/concurrency.md +++ b/src/doc/book/concurrency.md @@ -4,7 +4,7 @@ Concurrency and parallelism are incredibly important topics in computer science, and are also a hot topic in industry today. Computers are gaining more and more cores, yet many programmers aren't prepared to fully utilize them. -Rust's memory safety features also apply to its concurrency story too. Even +Rust's memory safety features also apply to its concurrency story. Even concurrent Rust programs must be memory safe, having no data races. Rust's type system is up to the task, and gives you powerful ways to reason about concurrent code at compile time. @@ -281,8 +281,8 @@ And... still gives us an error. ``` `Arc<T>` by default has immutable contents. It allows the _sharing_ of data -between threads, but shared mutable data is unsafe and when threads are -involved can cause data races! +between threads, but shared mutable data is unsafe—and when threads are +involved—can cause data races! Usually when we wish to make something in an immutable position mutable, we use |