From 54c8738a966281e57e4169b6649743b1d57337c8 Mon Sep 17 00:00:00 2001
From: asonix <asonix@asonix.dog>
Date: Sun, 26 May 2024 13:48:11 -0500
Subject: [PATCH] Handle choose SIZE == source len

---
 src/lib.rs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/lib.rs b/src/lib.rs
index 05208b0..5952990 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -156,7 +156,11 @@ impl<'a, T: Clone, const SIZE: usize> Iterator for Choose<'a, T, SIZE> {
         let numerator = factorial(self.source.len());
         let denominator = factorial(SIZE) * factorial(self.source.len() - SIZE);
 
-        let size = numerator / denominator;
+        let size = if denominator == 0 {
+            1
+        } else {
+            numerator / denominator
+        };
 
         (size, Some(size))
     }