friend declaration block an external function access to the private section of a class
- by MiP
I'm trying to force function caller from a specific class.
For example this code bellow demonstrate my problem.
I want to make 'use' function would be called only from class A.
I'm using a global namespace all over the project.
a.h
#include "b.h"
namespace GLOBAL{
class A{
public:
void doSomething(B);
}
}
a.cpp
#include "a.h"
using namespace GLOBAL;
void A::doSomething(B b){
b.use();
}
b.h
namespace GLOBAL{
class B{
public:
friend void GLOBAL::A::doSomething(B);
private:
void use();
}
Compiler says:
‘GLOBAL::A’ has not been declared
‘void GLOBAL::B::use()’ is private
Can anyone help here ?
Thanks a lot,
Mike.
