[Bug c++/33858] New: Spurious warning with anonymous namespace

[Bug c++/33858] New: Spurious warning with anonymous namespace

[jm at bourguet dot org]

g++ -Wall -Wextra on

namespace {
enum { bar, quux } baz;
}

gives as warning:

testwarn.cpp:2: warning: non-local variable '<unnamed>::<anonymous enum>
<unnamed>::baz' uses anonymous type

I don't thing that variables in anonymous namespace should be considered as non
local for the purpose of this warning.


-- 
           Summary: Spurious warning with anonymous namespace
           Product: gcc
           Version: 4.2.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: jm at bourguet dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33858

[Bug c++/33858] Spurious warning with anonymous namespace

[ralgith at gmail dot com]

------- Comment #1 from ralgith at gmail dot com  2007-10-30 18:23 -------
Or be considered non-local, but NOT generate the warning. This is a fairly
common coding convention, and this warning keeps jumping up and down at me in
several programs I've compiled.


-- 

ralgith at gmail dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ralgith at gmail dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33858

[Bug c++/33858] Spurious warning with anonymous namespace and anonymous types

[pinskia at gcc dot gnu dot org]

------- Comment #2 from pinskia at gcc dot gnu dot org  2007-12-02 22:24 -------
Confirmed.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
           Keywords|                            |diagnostic
   Last reconfirmed|0000-00-00 00:00:00         |2007-12-02 22:24:33
               date|                            |
            Summary|Spurious warning with       |Spurious warning with
                   |anonymous namespace         |anonymous namespace and
                   |                            |anonymous types


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33858

[Bug c++/33858] Spurious warning with anonymous namespace and anonymous types

[tobi at gcc dot gnu dot org]

------- Comment #3 from tobi at gcc dot gnu dot org  2009-05-08 18:53 -------
Note that the C-like equivalent doesn't warn (at least with g++ 4.1.2):
$ cat user/t.cc
namespace {
  struct {
  } t;
}

static struct {
} s;
$ g++ -c user/t.cc
user/t.cc:3: warning: non-local variable '<unnamed>::<anonymous struct>
<unnamed>::t' uses anonymous type
$


-- 

tobi at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |tobi at gcc dot gnu dot org
   Last reconfirmed|2007-12-02 22:24:33         |2009-05-08 18:53:49
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33858