From d13f76b7dab6d08daefb0b74a21833b4cb6bd1a8 Mon Sep 17 00:00:00 2001
From: Scott Lahteine <github@thinkyhead.com>
Date: Tue, 26 Jun 2018 18:49:59 -0500
Subject: [PATCH] Patch some loop macros

---
 Marlin/src/core/enum.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Marlin/src/core/enum.h b/Marlin/src/core/enum.h
index b9581bec89..d9a3cd18c2 100644
--- a/Marlin/src/core/enum.h
+++ b/Marlin/src/core/enum.h
@@ -45,8 +45,8 @@ enum AxisEnum : unsigned char {
   NO_AXIS   = 0xFF
 };
 
-#define LOOP_S_LE_N(VAR, S, N) for (uint8_t VAR=S; VAR<=N; VAR++)
-#define LOOP_S_L_N(VAR, S, N) for (uint8_t VAR=S; VAR<N; VAR++)
+#define LOOP_S_LE_N(VAR, S, N) for (uint8_t VAR=(S); VAR<=(N); VAR++)
+#define LOOP_S_L_N(VAR, S, N) for (uint8_t VAR=(S); VAR<(N); VAR++)
 #define LOOP_LE_N(VAR, N) LOOP_S_LE_N(VAR, 0, N)
 #define LOOP_L_N(VAR, N) LOOP_S_L_N(VAR, 0, N)