From 9d1869fc9c16f43a99c5aa1c3d48de999d2ce886 Mon Sep 17 00:00:00 2001
From: david <daviddoji@pm.me>
Date: Mon, 17 Jun 2024 10:53:22 +0200
Subject: [PATCH] solution to exercise 02_06

---
 exercises/02_basic_calculator/06_while/src/lib.rs | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/exercises/02_basic_calculator/06_while/src/lib.rs b/exercises/02_basic_calculator/06_while/src/lib.rs
index dbc30eb..b39af2b 100644
--- a/exercises/02_basic_calculator/06_while/src/lib.rs
+++ b/exercises/02_basic_calculator/06_while/src/lib.rs
@@ -4,7 +4,13 @@ pub fn factorial(n: u32) -> u32 {
     // interprets as "I'll get back to this later", thus
     // suppressing type errors.
     // It panics at runtime.
-    todo!()
+    let mut result: u32 = 1; // base case
+    let mut i: u32 = 1;
+    while i <= n {
+        result *= i;
+        i += 1;
+    }
+    result
 }
 
 #[cfg(test)]