mirror of
https://codeberg.org/andyscott/ziglings.git
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19 lines
600 B
Diff
19 lines
600 B
Diff
--- exercises/046_optionals2.zig 2024-05-10 23:11:25.796632478 +0200
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+++ answers/046_optionals2.zig 2024-05-10 23:10:16.115335668 +0200
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@@ -21,7 +21,7 @@
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const Elephant = struct {
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letter: u8,
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- tail: *Elephant = null, // Hmm... tail needs something...
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+ tail: ?*Elephant = null, // <---- make this optional!
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visited: bool = false,
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};
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@@ -51,6 +51,6 @@
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// We should stop once we encounter a tail that
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// does NOT point to another element. What can
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// we put here to make that happen?
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- e = e.tail ???
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+ e = e.tail orelse break;
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}
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}
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