From: Ralf Jung <post@ralfj.de>
Date: Tue, 7 Jul 2015 11:22:38 +0000 (+0200)
Subject: part 05: clarify exercise
X-Git-Url: https://git.ralfj.de/rust-101.git/commitdiff_plain/ff4d137ae8e7a6f126d845084009ebdfc990aa47?hp=-c

part 05: clarify exercise
---

ff4d137ae8e7a6f126d845084009ebdfc990aa47
diff --git a/src/part05.rs b/src/part05.rs
index 7324d13..b3b428e 100644
--- a/src/part05.rs
+++ b/src/part05.rs
@@ -111,7 +111,7 @@ impl<T: Clone> Clone for SomethingOrNothing<T> {
 //@ `#[derive(Clone)]` right before the definition of `SomethingOrNothing`.
 
 // **Exercise 05.2**: Write some more functions on `BigInt`. What about a function that returns the number of
-// digits? The number of non-zero digits? The smallest/largest digit?
+// digits? The number of non-zero digits? The smallest/largest digit? Of course, these should all just borrow `self`.
 
 // ## Mutation + aliasing considered harmful (part 2)
 //@ Now that we know how to borrow a part of an `enum` (like `v` above), there's another example for why we
diff --git a/workspace/src/part05.rs b/workspace/src/part05.rs
index d3c9544..f1c5587 100644
--- a/workspace/src/part05.rs
+++ b/workspace/src/part05.rs
@@ -59,7 +59,7 @@ impl<T: Clone> Clone for SomethingOrNothing<T> {
 }
 
 // **Exercise 05.2**: Write some more functions on `BigInt`. What about a function that returns the number of
-// digits? The number of non-zero digits? The smallest/largest digit?
+// digits? The number of non-zero digits? The smallest/largest digit? Of course, these should all just borrow `self`.
 
 // ## Mutation + aliasing considered harmful (part 2)
 enum Variant {