From c6f1337f5c871843af7d2905b1eed0e217078cdb Mon Sep 17 00:00:00 2001
From: Scott Lahteine <sourcetree@thinkyhead.com>
Date: Thu, 28 Apr 2016 17:59:52 -0700
Subject: [PATCH] NOOP macro for do-nothing macros
---
Marlin/macros.h | 2 ++
Marlin/ultralcd.h | 4 ++--
2 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/Marlin/macros.h b/Marlin/macros.h
index 5f53ee987c..69ecc6fdb8 100644
--- a/Marlin/macros.h
+++ b/Marlin/macros.h
@@ -60,4 +60,6 @@
#define PENDING(NOW,SOON) ((long)(NOW-(SOON))<0)
#define ELAPSED(NOW,SOON) (!PENDING(NOW,SOON))
+#define NOOP do{}while(0)
+
#endif //__MACROS_H
diff --git a/Marlin/ultralcd.h b/Marlin/ultralcd.h
index 9665c2ce9c..e20f5cc332 100644
--- a/Marlin/ultralcd.h
+++ b/Marlin/ultralcd.h
@@ -156,8 +156,8 @@
FORCE_INLINE void lcd_reset_alert_level() {}
FORCE_INLINE bool lcd_detected(void) { return true; }
- #define LCD_MESSAGEPGM(x) do{}while(0)
- #define LCD_ALERTMESSAGEPGM(x) do{}while(0)
+ #define LCD_MESSAGEPGM(x) NOOP
+ #define LCD_ALERTMESSAGEPGM(x) NOOP
#endif //ULTRA_LCD
--
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