struct declaration into another struct

[slocum]

I have a struct like that

struct A {
struct B {
.....
}
...
}

I have to declare previously all that struct and their friends

struct A;
friend struct A;

but how to declare struct B and which is declared into struct A ?

struct A::B; ?
friend struct A::B ?

it doesn't work...

[slocum]

Re: struct declaration into another struct

On 11 Kwi, 08:42, "Jim Langston" <tazmas...@rock etmail.comwrote :

slocum wrote:

I have a struct like that

>

struct A {
struct B {
.....
}
...
}

>

I have to declare previously all that struct and their friends

>

struct A;
friend struct A;

>

but how to declare struct B and which is declared into struct A ?

>

struct A::B; ?
friend struct A::B ?

>

it doesn't work...

>
What doesn't work? The following compiles for me:
>
struct A
{
friend struct B;
struct B
{
int x;
};
int y;
>
};
>
struct C
{
friend struct A::B;
>
};
>
int main()
{
>
}
>
Does this answer your question?
>
--
Jim Langston
tazmas...@rocke tmail.com

and what if struct A and B are template ? How to declare a friend for
nested template struct ?
template <classfriend struct A::B or what ????