I have a strange problem when I create a static function in class A and I want to call it from class B function. I get 

> 
> undefined reference to `A::funcA(int)'
> 
> 
> 

Here is my source code : 
a.cpp

```
#include "a.h"

void funcA(int i) {
    std::cout << i << std::endl;
}

```

a.h

```
#ifndef A_H
#define A_H

#include <iostream>

class A
{
    public:
        A();
        static void funcA( int i );
};

#endif // A_H

```

b.cpp

```
#include "b.h"

void B::funcB(){
    A::funcA(5);
}

```

and b.h 

```
#ifndef B_H
#define B_H
#include "a.h"

class B
{
    public:
        B();
        void funcB();
};

#endif // B_H

```

I'm compiling with Code::Blocks.