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* [Bug c++/59123] New: [c++11] can't forward-declare an object later defined constexpr
@ 2013-11-14  0:33 eric.niebler at gmail dot com
  2013-11-17 10:08 ` [Bug c++/59123] " paolo.carlini at oracle dot com
                   ` (2 more replies)
  0 siblings, 3 replies; 4+ messages in thread
From: eric.niebler at gmail dot com @ 2013-11-14  0:33 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59123

            Bug ID: 59123
           Summary: [c++11] can't forward-declare an object later defined
                    constexpr
           Product: gcc
           Version: 4.8.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: eric.niebler at gmail dot com

Clang accepts the following. I think it's legal. g++ 4.8.1 rejects it:

// Fwd-declarations
struct S;
extern const S s;

// (... later) definitions
struct S {};
constexpr S s {};


^ permalink raw reply	[flat|nested] 4+ messages in thread

* [Bug c++/59123] [c++11] can't forward-declare an object later defined constexpr
  2013-11-14  0:33 [Bug c++/59123] New: [c++11] can't forward-declare an object later defined constexpr eric.niebler at gmail dot com
@ 2013-11-17 10:08 ` paolo.carlini at oracle dot com
  2013-11-17 19:22 ` paolo at gcc dot gnu.org
  2013-11-17 19:23 ` paolo.carlini at oracle dot com
  2 siblings, 0 replies; 4+ messages in thread
From: paolo.carlini at oracle dot com @ 2013-11-17 10:08 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59123

Paolo Carlini <paolo.carlini at oracle dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2013-11-17
           Assignee|unassigned at gcc dot gnu.org      |paolo.carlini at oracle dot com
   Target Milestone|---                         |4.9.0
     Ever confirmed|0                           |1

--- Comment #1 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Yes.


^ permalink raw reply	[flat|nested] 4+ messages in thread

* [Bug c++/59123] [c++11] can't forward-declare an object later defined constexpr
  2013-11-14  0:33 [Bug c++/59123] New: [c++11] can't forward-declare an object later defined constexpr eric.niebler at gmail dot com
  2013-11-17 10:08 ` [Bug c++/59123] " paolo.carlini at oracle dot com
@ 2013-11-17 19:22 ` paolo at gcc dot gnu.org
  2013-11-17 19:23 ` paolo.carlini at oracle dot com
  2 siblings, 0 replies; 4+ messages in thread
From: paolo at gcc dot gnu.org @ 2013-11-17 19:22 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59123

--- Comment #2 from paolo at gcc dot gnu.org <paolo at gcc dot gnu.org> ---
Author: paolo
Date: Sun Nov 17 19:22:43 2013
New Revision: 204923

URL: http://gcc.gnu.org/viewcvs?rev=204923&root=gcc&view=rev
Log:
/cp
2013-11-17  Paolo Carlini  <paolo.carlini@oracle.com>

    PR c++/59123
    * decl.c (validate_constexpr_redeclaration): Redeclarations of
    variables can differ in constexpr.

/testsuite
2013-11-17  Paolo Carlini  <paolo.carlini@oracle.com>

    PR c++/59123
    * g++.dg/cpp0x/constexpr-redeclaration1.C: New.
    * g++.dg/cpp0x/constexpr-decl.C: Adjust.

Added:
    trunk/gcc/testsuite/g++.dg/cpp0x/constexpr-redeclaration1.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/decl.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/g++.dg/cpp0x/constexpr-decl.C


^ permalink raw reply	[flat|nested] 4+ messages in thread

* [Bug c++/59123] [c++11] can't forward-declare an object later defined constexpr
  2013-11-14  0:33 [Bug c++/59123] New: [c++11] can't forward-declare an object later defined constexpr eric.niebler at gmail dot com
  2013-11-17 10:08 ` [Bug c++/59123] " paolo.carlini at oracle dot com
  2013-11-17 19:22 ` paolo at gcc dot gnu.org
@ 2013-11-17 19:23 ` paolo.carlini at oracle dot com
  2 siblings, 0 replies; 4+ messages in thread
From: paolo.carlini at oracle dot com @ 2013-11-17 19:23 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59123

Paolo Carlini <paolo.carlini at oracle dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED
           Assignee|paolo.carlini at oracle dot com    |unassigned at gcc dot gnu.org

--- Comment #3 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Fixed for 4.9.0.


^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2013-11-17 19:23 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2013-11-14  0:33 [Bug c++/59123] New: [c++11] can't forward-declare an object later defined constexpr eric.niebler at gmail dot com
2013-11-17 10:08 ` [Bug c++/59123] " paolo.carlini at oracle dot com
2013-11-17 19:22 ` paolo at gcc dot gnu.org
2013-11-17 19:23 ` paolo.carlini at oracle dot com

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