From cc64f470049ec363f547f4643c1b3de3613db12d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Robert=20J=C3=B6rdens?= <rj@quartiq.de>
Date: Wed, 25 Nov 2020 18:55:07 +0100
Subject: [PATCH] iir: fmt [nfc]

---
 dsp/src/iir.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/dsp/src/iir.rs b/dsp/src/iir.rs
index f58fb64..04d7c8e 100644
--- a/dsp/src/iir.rs
+++ b/dsp/src/iir.rs
@@ -164,7 +164,8 @@ impl IIR {
         // `xy` contains       x0 x1 y0 y1 y2
         // Increment time      x1 x2 y1 y2 y3
         // Shift               x1 x1 x2 y1 y2
-        xy.copy_within(0..n - 1, 1);  // unrolls better than xy.rotate_right(1)
+        // This unrolls better than xy.rotate_right(1)
+        xy.copy_within(0..n - 1, 1);
         // Store x0            x0 x1 x2 y1 y2
         xy[0] = x0;
         // Compute y0 by multiply-accumulate