c++, Undefined reference to.functions declared in namespace. Why?

Asked Dec 05 '19 at 20:37

Active Dec 05 '19 at 20:37

Viewed 28 times

I have declared files structure as below. Compiler says undefined reference to `SystemStorage::initialize(int, int, int). I truly have no idea why :?

systemStorage.h

#ifndef SYSTEM_STORAGE_H
#define SYSTEM_STORAGE_H

namespace SystemStorage {
  void initialize(int light_sensor, int led, int sampling);
}

#endif

systemStorage.cpp

#include "systemStorage.h"

namespace SystemStorage{
  void initialize(int light_sensor, int led, int sampling){
     //instructions to do ...
  }
}

Main file:


#include "functions/systemStorage.h"

void setup() {
  SystemStorage::initialize(1, 2, 3);   
}

asked Dec 05 '19 at 20:37

Maks Maxx

1

"Compiler says undefined reference" - Nope. That's the *linker* complaining. – Jesper Juhl Dec 05 '19 at 20:40
Maybe the object file for `systemStorage.cpp` was not compiled into the executable. – drescherjm Dec 05 '19 at 20:41
1

I'm guessing you didn't supply the .cpp to your compilation command. Please edit your post and supply what you used. – Bobby Tables Dec 05 '19 at 20:42
Yea, you are right, these guys are not compiled – Maks Maxx Dec 05 '19 at 20:57
"I'm guessing you didn't supply the .cpp to your compilation command. " – Maks Maxx Dec 05 '19 at 21:26
Working now, thx – Maks Maxx Dec 05 '19 at 21:26

c++, Undefined reference to.functions declared in namespace. Why?

0 Answers0