From 6d6794456e5233168be3d82db0a2e6b05b7ee1f3 Mon Sep 17 00:00:00 2001
From: Simon Gardling <titaniumtown@proton.me>
Date: Thu, 27 Mar 2025 23:49:44 -0400
Subject: [PATCH] improve wrap function

---
 src/util.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/util.rs b/src/util.rs
index 7596f17..d56f137 100644
--- a/src/util.rs
+++ b/src/util.rs
@@ -1,6 +1,6 @@
 #[inline]
 pub fn wrap(x: f32, max: f32) -> f32 {
-    x - max * ((x > max) as i32 as f32 - (x < 0.0_f32) as i32 as f32)
+    x - max * ((x > max) as i32 - x.is_sign_negative() as i32) as f32
 }
 
 /// Truncate x and y and return a corresponding index into the data slice.
@@ -18,7 +18,7 @@ mod test {
 
     #[test]
     fn wrap_test() {
-        assert_eq!(wrap(1.1, 1.0), 0.100000024);
+        assert_eq!(wrap(1.1, 1.0), 0.100000024); // floating point weirdness
         assert_eq!(wrap(0.5, 1.0), 0.5);
         assert_eq!(wrap(-1.0, 2.0), 1.0);
     }