add header guards to buffer h

5 years ago · 852a2ef8a5
parent 911967c9cc
commit 852a2ef8a5
1 changed files with 5 additions and 0 deletions
--- a/buffer.h
+++ b/buffer.h
@ -1,3 +1,6 @@
+#ifndef _BUFFER_H_
+#define _BUFFER_H_
+
 #include <stdint.h>

 #define BUFFER_SIZE 200
@ -9,3 +12,5 @@ typedef struct {

 void insert_to_buffer(uint16_t val, volatile buffer_t* buf);
 float get_buffer_mean(volatile buffer_t* buf);
+
+#endif//_BUFFER_H_