Re: how to make a static function a friend of a class

[Larry I Smith]

Maett wrote:
> Hi.
>
> I would like to access private class data out of a static function as 
> follows:
>
> foo1.h:
>   class foo1Class {
>     public:
>       static int getN();
>     private:

        friend int ::foo1();
>       // friend int foo1();
>       static const int n;
>   };
>
> foo1.cpp:
>   #include "foo1.h"
>
>   const int foo1Class::n = 77;
>
>   int foo1Class::getN()
>   {
>     return foo1();
>   }

    int foo1()
>   // static int foo1()
>   {
>     return foo1Class::n;
>   }
>
>
> Then g++ (3.2.3) tells me:
>   foo1.cpp: In function `int foo1()':
>   foo1.cpp:11: `int foo1()' was declared `extern' and later `static'
>   foo1.h:5: previous declaration of `int foo1()'
>
> Which of course is correct.

[snip]

Regards,
Larry

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