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Date: Fri, 20 Dec 2002 12:26:00 -0000
From: bangerth@ticam.utexas.edu
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Subject: c++/9030: [3.4 regression] Template friends and access to local classes
X-SW-Source: 2002-12/txt/msg01122.txt.bz2
List-Id: <gcc-prs.sourceware.org>


>Number:         9030
>Category:       c++
>Synopsis:       [3.4 regression] Template friends and access to local classes
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Dec 20 12:26:01 PST 2002
>Closed-Date:
>Last-Modified:
>Originator:     Wolfgang Bangerth
>Release:        unknown-1.0
>Organization:
>Environment:
Today's CVS.
>Description:
The following used to compile (and does so with icc7, for
example, in strict ANSI conformance mode):
---------------------------
template <class T> class Outer {
  private:
    struct Inner {};

    template <class T_>
    friend typename Outer<T_>::Inner foo ();
};

template <class T>
typename Outer<T>::Inner
foo () {
  return Outer<T>::Inner();
}

void f() {
  foo<int>();
}
-----------------------------

It fails since yesterday:
tmp/g> /home/bangerth/bin/gcc-3.4-CVS/bin/c++ -c x.cc
x.cc: In function `void f()':
x.cc:3: error: `struct Outer<int>::Inner' is private
x.cc:16: error: within this context
x.cc:3: error: `struct Outer<int>::Inner' is private
x.cc:16: error: within this context
x.cc:3: error: `struct Outer<int>::Inner' is private
x.cc:11: error: within this context
x.cc: At global scope:
x.cc: In instantiation of `typename Outer<T>::Inner foo() [with T = int]':
x.cc:16:   instantiated from here
x.cc:3: error: `struct Outer<int>::Inner' is private
x.cc:11: error: within this context
x.cc:3: error: `struct Outer<int>::Inner' is private
x.cc:11: error: within this context

Kriang, I think that one of your patches yesterday must
have caused this, since our nightly builds went fine
until this night. Could you take a look at it?

Thanks
  Wolfgang
>How-To-Repeat:

>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted: