ifdef header protection.

dthain · Sep 20, 2017 · 9b05bce · 9b05bce
1 parent f67b5d6
commit 9b05bce
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/QMC5883L.h b/QMC5883L.h
@@ -1,3 +1,5 @@
+#ifndef QMC5883L_H
+#define QMC5883L_H
 
 class QMC5883L {
 public:
@@ -24,3 +26,5 @@ class QMC5883L {
   uint8_t range;
   uint8_t oversampling;
 };
+
+#endif