From 5a520921094ef2e9608567c1e42e7e77e4206060 Mon Sep 17 00:00:00 2001
From: jayber <james.a.bromley@gmail.com>
Date: Mon, 30 May 2022 15:13:55 +0100
Subject: [PATCH] docs: updated prefix comments as per requests at end of
 README.md in Section "Completion", i.e. I added some hopefully useful text to
 errors4.rs and 5 and option1.rs 2 and 3. Just attempt to do something useful
 for repository as first commit.

---
 exercises/error_handling/errors4.rs | 2 ++
 exercises/error_handling/errors5.rs | 3 ++-
 exercises/option/option1.rs         | 2 ++
 exercises/option/option2.rs         | 4 ++++
 exercises/option/option3.rs         | 1 +
 5 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/exercises/error_handling/errors4.rs b/exercises/error_handling/errors4.rs
index 0685c374..d1d1b4f9 100644
--- a/exercises/error_handling/errors4.rs
+++ b/exercises/error_handling/errors4.rs
@@ -1,4 +1,6 @@
 // errors4.rs
+// The code is excessively positive about the numbers given it. It should fail if
+// they aren't, returning the appropriate Result.
 // Make this test pass! Execute `rustlings hint errors4` for hints :)
 
 // I AM NOT DONE
diff --git a/exercises/error_handling/errors5.rs b/exercises/error_handling/errors5.rs
index 365a8691..ddcee18d 100644
--- a/exercises/error_handling/errors5.rs
+++ b/exercises/error_handling/errors5.rs
@@ -1,7 +1,8 @@
 // errors5.rs
 
 // This program uses a completed version of the code from errors4.
-// It won't compile right now! Why?
+// It won't compile right now! Why? What are all the possible return
+// types from main?
 // Execute `rustlings hint errors5` for hints!
 
 // I AM NOT DONE
diff --git a/exercises/option/option1.rs b/exercises/option/option1.rs
index 17cf4f60..b49fbe19 100644
--- a/exercises/option/option1.rs
+++ b/exercises/option/option1.rs
@@ -1,4 +1,6 @@
 // option1.rs
+// How does the function signature of print_number differ from where
+// it is called in main?
 // Make me compile! Execute `rustlings hint option1` for hints
 
 // I AM NOT DONE
diff --git a/exercises/option/option2.rs b/exercises/option/option2.rs
index c6b83ece..d954d2a8 100644
--- a/exercises/option/option2.rs
+++ b/exercises/option/option2.rs
@@ -1,4 +1,8 @@
 // option2.rs
+// You're gonna add if let and while let to the function below
+// where the todo: are
+// what's the difference between 'word' and 'optional_word'
+// and how do you get one from the other?
 // Make me compile! Execute `rustlings hint option2` for hints
 
 // I AM NOT DONE
diff --git a/exercises/option/option3.rs b/exercises/option/option3.rs
index 045d2acb..43ba3e29 100644
--- a/exercises/option/option3.rs
+++ b/exercises/option/option3.rs
@@ -1,4 +1,5 @@
 // option3.rs
+// Let the compiler guide you. Also: https://doc.rust-lang.org/std/keyword.ref.html
 // Make me compile! Execute `rustlings hint option3` for hints
 
 // I AM NOT DONE