From b12afaa577e5f9b0c3bf922ec5c1ab15893c7378 Mon Sep 17 00:00:00 2001
From: Dave Gauer <dave@ratfactor.com>
Date: Sun, 28 Feb 2021 13:23:22 -0500
Subject: Added ex 48, additional comment on 46

---
 exercises/46_optionals2.zig | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

(limited to 'exercises/46_optionals2.zig')

diff --git a/exercises/46_optionals2.zig b/exercises/46_optionals2.zig
index a037382..d3f65bb 100644
--- a/exercises/46_optionals2.zig
+++ b/exercises/46_optionals2.zig
@@ -5,11 +5,23 @@
 // linked to the first elephant. This is because we had NO CONCEPT
 // of a tail that didn't point to another elephant!
 //
+// We also introduce the handy ".?" shortcut:
+//
+//     const foo = bar.?;
+//
+// is the same as
+//
+//     const foo = bar orelse unreachable;
+//
+// See if you can find where we use this shortcut below.
+//
+// Now let's make those elephant tails optional!
+//
 const std = @import("std");
 
 const Elephant = struct {
     letter: u8,
-    tail: *Elephant = null, // <---- make this optional!
+    tail: *Elephant = null, // Hmm... tail needs something...
     visited: bool = false,
 };
 
-- 
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