From 566fde76996e2c694b1f8c96605645e16dfc350a Mon Sep 17 00:00:00 2001
From: AndersTrier <anders.trier.olesen@gmail.com>
Date: Mon, 12 Aug 2024 15:38:17 +0200
Subject: [PATCH] formal_derivative: Simply expression for `width` using
 `trailing_zeros()` instead

---
 src/engine.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/engine.rs b/src/engine.rs
index 45e4179..94d76f5 100644
--- a/src/engine.rs
+++ b/src/engine.rs
@@ -228,7 +228,7 @@ pub trait Engine {
         Self: Sized,
     {
         for i in 1..data.len() {
-            let width: usize = ((i ^ (i - 1)) + 1) >> 1;
+            let width: usize = 1 << i.trailing_zeros();
             Self::xor_within(data, i - width, i, width);
         }
     }