From cb9f1ac9ce3c834b0cca964b6809b74508f80b54 Mon Sep 17 00:00:00 2001
From: mo8it <mo8it@proton.me>
Date: Wed, 17 Apr 2024 22:46:21 +0200
Subject: Require a main function in all exercises

---
 exercises/13_error_handling/errors4.rs | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'exercises/13_error_handling/errors4.rs')

diff --git a/exercises/13_error_handling/errors4.rs b/exercises/13_error_handling/errors4.rs
index 0e5c08b..9449417 100644
--- a/exercises/13_error_handling/errors4.rs
+++ b/exercises/13_error_handling/errors4.rs
@@ -19,6 +19,10 @@ impl PositiveNonzeroInteger {
     }
 }
 
+fn main() {
+    // You can optionally experiment here.
+}
+
 #[test]
 fn test_creation() {
     assert!(PositiveNonzeroInteger::new(10).is_ok());
-- 
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