Coding-Guidelines.md

@@ -20,6 +20,17 @@ The use of dynamic allocation can lead to heap fragmentation and out-of-memory e
 Recursive code is hard to read and debug, and can easy lead to stack overflow errors.
 - **Every class with a virtual function shall define a virtual destructor**  
 Avoid undefined behavior where a derived class is destroyed through a reference to the base class, possibly leaking resources.
+- **Every header file shall be guarded using defines containing the full project path of the file**  
+Example: File `src/shared/sensors/ExampleSensor.h`
+```
+#ifndef SRC_SHARED_SENSORS_EXAMPLESENSOR_H
+#define SRC_SHARED_SENSORS_EXAMPLESENSOR_H
+
+//Code goes here
+
+#endif /* SRC_SHARED_SENSORS_EXAMPLESENSOR_H */
+```
+
 
 ## **General rules**  
 These are not critical rules, but you should follow them in most cases.