From 7d2329cf8547fc76e428cf37841e411ee87b2f1a Mon Sep 17 00:00:00 2001
From: Yuri D'Elia <wavexx@thregr.org>
Date: Mon, 5 Jul 2021 18:13:27 +0200
Subject: [PATCH] Add src/cmath.h for <math.h> portability between platforms

---
 src/cmath.h | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 src/cmath.h

diff --git a/src/cmath.h b/src/cmath.h
new file mode 100644
index 0000000..bf876b3
--- /dev/null
+++ b/src/cmath.h
@@ -0,0 +1,17 @@
+// Provide an uniform interface for basic math functions between AVR libc and newer
+// standards that support <cmath>
+#pragma once
+
+#ifndef __AVR__
+    #include <cmath>
+#else
+
+    // AVR libc doesn't support cmath
+    #include <math.h>
+
+    // Use builtin functions for min/max/abs
+    #define min(a, b) __builtin_min((a, b))
+    #define max(a, b) __builtin_max((a, b))
+    #define abs(n) __builtin_abs((n))
+
+#endif