From 9fc6c355ffcd77ddd856224333be82bcc86dd26e Mon Sep 17 00:00:00 2001
From: Ian Gulliver <flamingcow@gmail.com>
Date: Mon, 7 Aug 2017 15:17:42 +0000
Subject: [PATCH] Safer remainder calculation

---
 lut.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lut.h b/lut.h
index d576c09..1f8e06c 100644
--- a/lut.h
+++ b/lut.h
@@ -130,7 +130,8 @@ constexpr std::pair<uint32_t, uint32_t> Lut3d<R, G, B>::FindChannelRoot(const ui
   // points - 1 is the last point index. Since we're going to fidn the cube
   // around this point by adding to the root, we need to be at least 1 less
   // than that.
-  return std::make_pair(std::min(points - 2, value / BlockSize(points)), value % BlockSize(points));;
+  uint32_t index = std::min(points - 2, value / BlockSize(points));
+  return std::make_pair(index, value - (index * BlockSize(points)));
 }
 
 template <uint32_t R, uint32_t G, uint32_t B>