1 files changed, 0 insertions, 58 deletions
diff --git a/exercises/46_optionals2.zig b/exercises/46_optionals2.zig
deleted file mode 100644
index d3f65bb..0000000
--- a/exercises/46_optionals2.zig
+++ /dev/null
@@ -1,58 +0,0 @@
-//
-// Now that we have optional types, we can apply them to structs.
-// The last time we checked in with our elephants, we had to link
-// all three of them together in a "circle" so that the last tail
-// 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, // Hmm... tail needs something...
-    visited: bool = false,
-};
-
-pub fn main() void {
-    var elephantA = Elephant{ .letter = 'A' };
-    var elephantB = Elephant{ .letter = 'B' };
-    var elephantC = Elephant{ .letter = 'C' };
-
-    // Link the elephants so that each tail "points" to the next.
-    elephantA.tail = &elephantB;
-    elephantB.tail = &elephantC;
-
-    visitElephants(&elephantA);
-
-    std.debug.print("\n", .{});
-}
-
-// This function visits all elephants once, starting with the
-// first elephant and following the tails to the next elephant.
-fn visitElephants(first_elephant: *Elephant) void {
-    var e = first_elephant;
-
-    while (!e.visited) {
-        std.debug.print("Elephant {u}. ", .{e.letter});
-        e.visited = true;
-
-        // We should stop once we encounter a tail that
-        // does NOT point to another element. What can
-        // we put here to make that happen?
-        if (e.tail == null) ???;
-
-        e = e.tail.?;
-    }
-}