[Bug c++/47210] New: Compile error on type specifier in a friend declaration designates a class type

[Bug c++/47210] New: Compile error on type specifier in a friend declaration designates a class type

[boostcpp at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47210

           Summary: Compile error on type specifier in a friend declaration
                    designates a class type
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: boostcpp@gmail.com


The restriction,
"An elaborated-type-specifier shall be used in a friend declaration for a
class."
, does not exists in the current C++0x draft.

In the latest draft(N2335),
11.4 Friends [class.friend] paragraph 3 said 

"If the type specifier in a friend declaration designates a (possibly
cv-qualified) class type, that class is declared as a friend"

So, following well-formed code should be accepted under the compile option
-std=c++0x.

class Y ;

class X
{
    // error on the 2011-01-01 snapshot of gcc 4.6 
    friend Y ; // OK, Y is class type.
} ;

[Bug c++/47210] [C++0x] Compile error on type specifier in a friend declaration designates a class type

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47210

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |rejects-valid
            Summary|Compile error on type       |[C++0x] Compile error on
                   |specifier in a friend        |type specifier in a friend
                   |declaration designates a    |declaration designates a
                   |class type                  |class type

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> 2011-01-07 14:01:11 UTC ---
Not a bug, just not implemented yet, as documented at
http://gcc.gnu.org/projects/cxx0x.html

[Bug c++/47210] [C++0x] Compile error on type specifier in a friend declaration designates a class type

[boostcpp at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47210

--- Comment #2 from Ryou Ezoe <boostcpp at gmail dot com> 2011-01-07 14:02:43 UTC ---
Sorry, I didn't noticed that.

[Bug c++/47210] [C++0x] Compile error on type specifier in a friend declaration designates a class type

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47210

Richard Guenther <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |INVALID

--- Comment #3 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-01-11 11:56:38 UTC ---
.

[Bug c++/47210] [C++0x] Compile error on type specifier in a friend declaration designates a class type

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47210

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|INVALID                     |DUPLICATE

--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> 2011-02-14 23:02:07 UTC ---
Marking as a dup of bug

*** This bug has been marked as a duplicate of bug 47721 ***