Re: c++/2421: can't declare ordinary nested class as friend of template class

Re: c++/2421: can't declare ordinary nested class as friend of template class

[lerdsuwa]

Synopsis: can't declare ordinary nested class as friend of template class

State-Changed-From-To: analyzed->closed
State-Changed-By: lerdsuwa
State-Changed-When: Thu Jul  4 08:17:26 2002
State-Changed-Why:
    Fixed in GCC 3.1.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=2421

c++/2421: can't declare ordinary nested class as friend of template class

[jhl]

>Number:         2421
>Category:       c++
>Synopsis:       can't declare ordinary nested class as friend of template class
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    unassigned
>State:          open
>Class:          rejects-legal
>Submitter-Id:   net
>Arrival-Date:   Wed Mar 28 17:56:01 PST 2001
>Closed-Date:
>Last-Modified:
>Originator:     Jonathan H Lundquist
>Release:        2.95.2
>Organization:
>Environment:
Debian 2.2 i386
>Description:
The following is an example of the problem, as described in the synopsis:

class A {
public:
   class X;
};

template<typename T>
class B {
   friend class A::X;
public:
   B() {}
};

int main()
{
   B<int> b;
   return 0;
}

causes 'A::X' does not declare a template type
>How-To-Repeat:
Compile example in description
>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted:
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Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="friend.cpp"

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