From 13142c1477b60121c33840b8827ed17545efa784 Mon Sep 17 00:00:00 2001
From: Josh Stewart <josh@noisymime.org>
Date: Mon, 30 Jan 2017 17:11:13 +1100
Subject: [PATCH] Add macro for round up/down integer division

---
 maths.ino | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/maths.ino b/maths.ino
index fe5c726..4c14253 100644
--- a/maths.ino
+++ b/maths.ino
@@ -1,5 +1,7 @@
 #include "maths.h"
 
+#define DIV_ROUND_CLOSEST(n, d) ((((n) < 0) ^ ((d) < 0)) ? (((n) - (d)/2)/(d)) : (((n) + (d)/2)/(d)))
+
 //Replace the standard arduino map() function to use the div function instead
 int fastMap(unsigned long x, int in_min, int in_max, int out_min, int out_max)
 {