[Bug c++/21581] (optimisation) Functions in anonymous namespaces should default to "hidden" visibility

[Bug c++/21581] (optimisation) Functions in anonymous namespaces should default to "hidden" visibility

[bkoz at gcc dot gnu dot org]

------- Comment #7 from bkoz at gcc dot gnu dot org  2005-12-12 17:22 -------

There is a feature request to assign visibility attributes to namespaces. If
this is done, then making anonymous namespaces hidden will just be a sub-class
of that work.

That enhancement request is

c++/21764

Some of the semantics need to be fleshed out concretely, and behavior decided.

-benjamin


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21581

[Bug c++/21581] (optimisation) Functions in anonymous namespaces should default to "hidden" visibility

[gdr at integrable-solutions dot net]

------- Comment #8 from gdr at integrable-solutions dot net  2005-12-12 17:37 -------
Subject: Re:  (optimisation) Functions in anonymous namespaces should default
to "hidden" visibility

"bkoz at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org> writes:

| There is a feature request to assign visibility attributes to
| namespaces. If this is done, then making anonymous namespaces hidden
| will just be a sub-class of that work.
| 
| That enhancement request is
| 
| c++/21764
| 
| Some of the semantics need to be fleshed out concretely, and
| behavior decided. 

I agree.
Independently of the visvibility issue, GCC can make some other entities
have internal linkage from the assembler/linker point of view (not C++
source point of view).

-- Gaby


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21581

[Bug c++/21581] (optimisation) Functions in anonymous namespaces should default to "hidden" visibility

[pinskia at gcc dot gnu dot org]

------- Comment #9 from pinskia at gcc dot gnu dot org  2006-03-13 01:41 -------
Related to PR 10591.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  BugsThisDependsOn|                            |10591


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21581

[Bug c++/21581] (optimisation) Functions in anonymous namespaces should default to "hidden" visibility

[pinskia at gcc dot gnu dot org]

------- Comment #10 from pinskia at gcc dot gnu dot org  2006-03-20 21:11 -------
*** Bug 26770 has been marked as a duplicate of this bug. ***


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |pluto at agmk dot net


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21581

[Bug c++/21581] (optimisation) Functions in anonymous namespaces should default to "hidden" visibility

[jason at gcc dot gnu dot org]

-- 

jason at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |jason at gcc dot gnu dot org
                   |dot org                     |
             Status|NEW                         |ASSIGNED
   Last reconfirmed|2005-09-30 05:14:50         |2006-03-21 14:31:18
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21581

[Bug c++/21581] (optimisation) Functions in anonymous namespaces should default to "hidden" visibility

[jason at gcc dot gnu dot org]

------- Comment #11 from jason at gcc dot gnu dot org  2006-03-21 16:15 -------
Subject: Bug 21581

Author: jason
Date: Tue Mar 21 16:15:25 2006
New Revision: 112250

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=112250
Log:
        PR c++/21581
        * parser.c (cp_parser_declaration): Support attributes on
        anonymous namespaces.
        * name-lookup.c (push_namespace_with_attribs): Anonymous
        namespaces default to hidden visibility.

Added:
    trunk/gcc/testsuite/g++.dg/ext/visibility/anon1.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/name-lookup.c
    trunk/gcc/cp/parser.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21581

[Bug c++/21581] (optimisation) Functions in anonymous namespaces should default to "hidden" visibility

[pinskia at gcc dot gnu dot org]

------- Comment #12 from pinskia at gcc dot gnu dot org  2006-03-21 17:01 -------
Fixed.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED
   Target Milestone|---                         |4.2.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21581

[Bug c++/21581] (optimisation) Functions in anonymous namespaces should default to "hidden" visibility

[sabre at nondot dot org]

------- Comment #13 from sabre at nondot dot org  2006-03-21 18:03 -------
Pardon the potentially silly question here, but why 'hidden'?  Why not
TREE_PUBLIC(decl) = 0?  It seems that members of anonymous namespaces should be
completely internal, and not depend on platform support for hidden visibility.

If I understand correctly, marking something hidden places more slightly more
burden on the static linker than marking it internal, and not all platforms
support hidden.

Should I (re)open a new bug for to request TREE_PUBLIC(decl) = 0 behavior?

-Chris


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21581

[Bug c++/21581] (optimisation) Functions in anonymous namespaces should default to "hidden" visibility

[pinskia at gcc dot gnu dot org]

------- Comment #14 from pinskia at gcc dot gnu dot org  2006-03-21 18:05 -------
(In reply to comment #13)
> Should I (re)open a new bug for to request TREE_PUBLIC(decl) = 0 behavior?

PR 10591 is for that issue.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21581

[Bug c++/21581] (optimisation) Functions in anonymous namespaces should default to "hidden" visibility

[sabre at nondot dot org]

------- Comment #15 from sabre at nondot dot org  2006-03-21 18:06 -------
Great, thanks!


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21581

[Bug c++/21581] (optimisation) Functions in anonymous namespaces should default to "hidden" visibility

[jason at gcc dot gnu dot org]

------- Comment #16 from jason at gcc dot gnu dot org  2006-04-05 22:20 -------
Can't fix until more basic problems are resolved.


-- 

jason at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|FIXED                       |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21581

[Bug c++/21581] (optimisation) Functions in anonymous namespaces should default to "hidden" visibility

[pinskia at gcc dot gnu dot org]

-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REOPENED                    |ASSIGNED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21581

[Bug c++/21581] (optimisation) Functions in anonymous namespaces should default to "hidden" visibility

[jason at gcc dot gnu dot org]

------- Comment #17 from jason at gcc dot gnu dot org  2006-06-30 01:16 -------
Subject: Bug 21581

Author: jason
Date: Fri Jun 30 01:15:56 2006
New Revision: 115086

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=115086
Log:
        PR c++/26905
        PR c++/26612
        PR c++/27000
        PR c++/26984
        PR c++/19134
        * tree.c (build_decl_stat): Don't hande #pragma visibility here.
        * c-common.c (c_determine_visibility): Handle it here.
        * c-decl.c (finish_decl): Call c_determine_visibility for
        functions, too.
        * flags.h (enum symbol_visibility): Sort from most to least visibility.
        * tree.h: Likewise.
        * varasm.c (default_assemble_visibility): Likewise.
        * c-common.c (handle_visibility_attribute): Complain about trying
        to give visibility to an already defined class, or trying to change
        declared visibility. Always attach the attribute.
        * cp/decl2.c (determine_visibility): Overhaul.
        (determine_visibility_from_class): Likewise.
        (min_vis_r, type_visibility, constrain_visibility): New fns.
        (constrain_visibility_for_template): Likewise.
        (constrain_class_visibility): Likewise.
        * cp/decl.c (cp_finish_decl): Call determine_visibility for function
        decls, too.
        * cp/name-lookup.c (pushtag): Call determine_visibility.
        * cp/decl.c (duplicate_decls): Don't copy visibility from template to
        specialization.
        * cp/pt.c (check_explicit_specialization): Likewise.
        (lookup_template_class, tsubst_decl): Call determine_visibility.
        * cp/class.c (finish_struct_1): Call constrain_class_visibility.

        PR c++/26905
        PR c++/21675
        PR c++/17470
        * cp/parser.c (cp_parser_explicit_instantiation): Pass the attributes
        to grokdeclarator.
        (cp_parser_type_specifier): Allow 'enum __attribute ((...)) E'.
        (cp_parser_enum_specifier): Likewise.
        (cp_parser_elaborated_type_specifier): Apply attributes if this
        declares only the class.
        (cp_parser_class_specifier): Apply leading attributes immediately.
        * cp/semantics.c (begin_class_definition): Add attributes parameter,
        apply them to the type.
        * attribs.c (decl_attributes): Ignore type-in-place attributes
        once the type has been defined.

        PR c++/21581
        PR c++/25915
        * cp/tree.c (decl_anon_ns_mem_p): New function.
        * cp/cp-tree.h: Declare it.
        * cp/decl2.c (determine_visibility): Make anonymous namespace
        members static.
        (min_vis_r, constrain_visibility): Likewise.
        * cp/rtti.c (create_pseudo_type_info): Set TREE_PUBLIC on
        pseudo-types.
        * cp/decl.c (cxx_init_decl_processing): Set TREE_PUBLIC on
        global_namespace.
        * cp/name-lookup.c (push_namespace_with_attribs): Don't set TREE_PUBLIC
        on anonymous namespaces.

Added:
    trunk/gcc/testsuite/g++.dg/ext/visibility/anon2.C
    trunk/gcc/testsuite/g++.dg/ext/visibility/class1.C
    trunk/gcc/testsuite/g++.dg/ext/visibility/prop1.C
    trunk/gcc/testsuite/g++.dg/ext/visibility/redecl1.C
    trunk/gcc/testsuite/g++.dg/ext/visibility/template1.C
    trunk/gcc/testsuite/g++.dg/ext/visibility/template2.C
    trunk/gcc/testsuite/g++.dg/ext/visibility/template3.C
    trunk/gcc/testsuite/g++.dg/ext/visibility/template4.C
    trunk/gcc/testsuite/g++.dg/ext/visibility/typeinfo1.C
    trunk/gcc/testsuite/g++.dg/ext/visibility/warn1.C
    trunk/gcc/testsuite/g++.dg/ext/visibility/warn2.C
    trunk/gcc/testsuite/g++.dg/ext/visibility/warn3.C
    trunk/gcc/testsuite/g++.dg/ext/visibility/warn4.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/attribs.c
    trunk/gcc/c-common.c
    trunk/gcc/c-decl.c
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/class.c
    trunk/gcc/cp/cp-tree.h
    trunk/gcc/cp/decl.c
    trunk/gcc/cp/decl2.c
    trunk/gcc/cp/name-lookup.c
    trunk/gcc/cp/parser.c
    trunk/gcc/cp/pt.c
    trunk/gcc/cp/rtti.c
    trunk/gcc/cp/semantics.c
    trunk/gcc/cp/tree.c
    trunk/gcc/doc/extend.texi
    trunk/gcc/doc/invoke.texi
    trunk/gcc/flags.h
    trunk/gcc/testsuite/g++.dg/ext/attrib14.C
    trunk/gcc/testsuite/g++.dg/ext/attrib9.C
    trunk/gcc/testsuite/g++.dg/ext/visibility/anon1.C
    trunk/gcc/testsuite/g++.dg/ext/visibility/assign1.C
    trunk/gcc/testsuite/g++.dg/ext/visibility/fvisibility-override2.C
    trunk/gcc/testsuite/g++.dg/ext/visibility/virtual.C
    trunk/gcc/testsuite/g++.old-deja/g++.pt/enum5.C
    trunk/gcc/tree.c
    trunk/gcc/tree.h
    trunk/gcc/varasm.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21581

[Bug c++/21581] (optimisation) Functions in anonymous namespaces should default to "hidden" visibility

[pinskia at gcc dot gnu dot org]

------- Comment #18 from pinskia at gcc dot gnu dot org  2006-06-30 15:28 -------
Fixed.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21581

[Bug c++/21581] (optimisation) Functions in anonymous namespaces should default to "hidden" visibility

[jakub at gcc dot gnu dot org]

------- Comment #19 from jakub at gcc dot gnu dot org  2006-08-28 12:27 -------
Subject: Bug 21581

Author: jakub
Date: Mon Aug 28 12:26:41 2006
New Revision: 116505

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=116505
Log:
2006-07-06  Jason Merrill  <jason@redhat.com>

cp/
        PR c++/28279
        * decl2.c (finish_static_data_member_decl): Don't assert
        TREE_PUBLIC.

2006-07-01  Jason Merrill  <jason@redhat.com>

cp/
        PR c++/28215
        * method.c (make_thunk): Unset DECL_USE_TEMPLATE and 
        DECL_TEMPLATE_INFO.

2006-06-30  Jason Merrill  <jason@redhat.com>

objcp/
        * objcp-decl.c (objcp_start_struct): Pass null attributes argument
        to begin_class_definition.

2006-06-29  Jason Merrill  <jason@redhat.com>

        PR c++/26905
        PR c++/26612
        PR c++/27000
        PR c++/26984
        PR c++/19134
        * tree.c (build_decl_stat): Don't hande #pragma visibility here.
        * c-common.c (c_determine_visibility): Handle it here.
        * c-decl.c (finish_decl): Call c_determine_visibility for 
        functions, too.
        * flags.h (enum symbol_visibility): Sort from most to least visibility.
        * tree.h: Likewise.
        * varasm.c (default_assemble_visibility): Likewise.
        * c-common.c (handle_visibility_attribute): Complain about trying
        to give visibility to an already defined class, or trying to change
        declared visibility. Always attach the attribute.

        PR c++/26905
        PR c++/21675
        PR c++/17470
        * attribs.c (decl_attributes): Ignore type-in-place attributes
        once the type has been defined.
cp/
        PR c++/26905
        PR c++/26612
        PR c++/27000
        PR c++/26984
        PR c++/19134
        * decl2.c (determine_visibility): Overhaul.
        (determine_visibility_from_class): Likewise.
        (min_vis_r, type_visibility, constrain_visibility): New fns.
        (constrain_visibility_for_template): Likewise.
        (constrain_class_visibility): Likewise.
        * decl.c (cp_finish_decl): Call determine_visibility for function
        decls, too.
        * name-lookup.c (pushtag): Call determine_visibility.
        * decl.c (duplicate_decls): Don't copy visibility from template to
        specialization.
        * pt.c (check_explicit_specialization): Likewise.
        (lookup_template_class, tsubst_decl): Call determine_visibility.
        * class.c (finish_struct_1): Call constrain_class_visibility.

        PR c++/26905
        PR c++/21675
        PR c++/17470
        * parser.c (cp_parser_explicit_instantiation): Pass the attributes
        to grokdeclarator.
        (cp_parser_type_specifier): Allow 'enum __attribute ((...)) E'.
        (cp_parser_enum_specifier): Likewise.
        (cp_parser_elaborated_type_specifier): Apply attributes if this
        declares only the class.
        (cp_parser_class_specifier): Apply leading attributes immediately.
        * semantics.c (begin_class_definition): Add attributes parameter,
        apply them to the type.

        PR c++/21581
        PR c++/25915
        * tree.c (decl_anon_ns_mem_p): New function.
        * cp-tree.h: Declare it.
        * decl2.c (determine_visibility): Make anonymous namespace
        members static.
        (min_vis_r, constrain_visibility): Likewise.
        * rtti.c (create_pseudo_type_info): Set TREE_PUBLIC on
        pseudo-types.
        * decl.c (cxx_init_decl_processing): Set TREE_PUBLIC on
        global_namespace.
        * name-lookup.c (push_namespace_with_attribs): Don't set TREE_PUBLIC
        on anonymous namespaces.

Added:
    branches/redhat/gcc-4_1-branch/gcc/testsuite/g++.dg/ext/visibility/anon1.C
    branches/redhat/gcc-4_1-branch/gcc/testsuite/g++.dg/ext/visibility/anon2.C
    branches/redhat/gcc-4_1-branch/gcc/testsuite/g++.dg/ext/visibility/class1.C
    branches/redhat/gcc-4_1-branch/gcc/testsuite/g++.dg/ext/visibility/prop1.C
   
branches/redhat/gcc-4_1-branch/gcc/testsuite/g++.dg/ext/visibility/redecl1.C
   
branches/redhat/gcc-4_1-branch/gcc/testsuite/g++.dg/ext/visibility/template1.C
   
branches/redhat/gcc-4_1-branch/gcc/testsuite/g++.dg/ext/visibility/template2.C
   
branches/redhat/gcc-4_1-branch/gcc/testsuite/g++.dg/ext/visibility/template3.C
   
branches/redhat/gcc-4_1-branch/gcc/testsuite/g++.dg/ext/visibility/template4.C
   
branches/redhat/gcc-4_1-branch/gcc/testsuite/g++.dg/ext/visibility/typeinfo1.C
    branches/redhat/gcc-4_1-branch/gcc/testsuite/g++.dg/ext/visibility/warn1.C
    branches/redhat/gcc-4_1-branch/gcc/testsuite/g++.dg/ext/visibility/warn2.C
    branches/redhat/gcc-4_1-branch/gcc/testsuite/g++.dg/ext/visibility/warn3.C
    branches/redhat/gcc-4_1-branch/gcc/testsuite/g++.dg/ext/visibility/warn4.C
    branches/redhat/gcc-4_1-branch/gcc/testsuite/g++.dg/template/anon2.C
Modified:
    branches/redhat/gcc-4_1-branch/gcc/ChangeLog
    branches/redhat/gcc-4_1-branch/gcc/attribs.c
    branches/redhat/gcc-4_1-branch/gcc/c-common.c
    branches/redhat/gcc-4_1-branch/gcc/c-decl.c
    branches/redhat/gcc-4_1-branch/gcc/cp/ChangeLog
    branches/redhat/gcc-4_1-branch/gcc/cp/class.c
    branches/redhat/gcc-4_1-branch/gcc/cp/cp-tree.h
    branches/redhat/gcc-4_1-branch/gcc/cp/decl.c
    branches/redhat/gcc-4_1-branch/gcc/cp/decl2.c
    branches/redhat/gcc-4_1-branch/gcc/cp/method.c
    branches/redhat/gcc-4_1-branch/gcc/cp/name-lookup.c
    branches/redhat/gcc-4_1-branch/gcc/cp/parser.c
    branches/redhat/gcc-4_1-branch/gcc/cp/pt.c
    branches/redhat/gcc-4_1-branch/gcc/cp/rtti.c
    branches/redhat/gcc-4_1-branch/gcc/cp/semantics.c
    branches/redhat/gcc-4_1-branch/gcc/cp/tree.c
    branches/redhat/gcc-4_1-branch/gcc/doc/extend.texi
    branches/redhat/gcc-4_1-branch/gcc/doc/invoke.texi
    branches/redhat/gcc-4_1-branch/gcc/flags.h
    branches/redhat/gcc-4_1-branch/gcc/objcp/ChangeLog
    branches/redhat/gcc-4_1-branch/gcc/objcp/objcp-decl.c
    branches/redhat/gcc-4_1-branch/gcc/testsuite/g++.dg/ext/attrib14.C
    branches/redhat/gcc-4_1-branch/gcc/testsuite/g++.dg/ext/attrib9.C
   
branches/redhat/gcc-4_1-branch/gcc/testsuite/g++.dg/ext/visibility/assign1.C
   
branches/redhat/gcc-4_1-branch/gcc/testsuite/g++.dg/ext/visibility/fvisibility-override2.C
   
branches/redhat/gcc-4_1-branch/gcc/testsuite/g++.dg/ext/visibility/virtual.C
    branches/redhat/gcc-4_1-branch/gcc/testsuite/g++.old-deja/g++.pt/enum5.C
    branches/redhat/gcc-4_1-branch/gcc/tree.c
    branches/redhat/gcc-4_1-branch/gcc/tree.h
    branches/redhat/gcc-4_1-branch/gcc/varasm.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21581

[Bug c++/21581] (optimisation) Functions in anonymous namespaces should default to "hidden" visibility

[jakub at gcc dot gnu dot org]

------- Additional Comments From jakub at gcc dot gnu dot org  2005-05-26 14:45 -------
I think best would be to arrange for push_namespace that pushes anonymous
namespace to do equivalent of #pragma GCC visibility push(hidden)
and pop_namespace that leaves anonymous namespace to do equivalent of
#pragma GCC visibility pop(hidden).
That way users could override this if they want to.
Unfortunately this relies on H.J.'s > 16 visibility pragma nesting patch.


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |rth at gcc dot gnu dot org,
                   |                            |jason at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21581

[Bug c++/21581] (optimisation) Functions in anonymous namespaces should default to "hidden" visibility

[echristo at redhat dot com]

------- Additional Comments From echristo at redhat dot com  2005-05-17 18:20 -------
After talking with jason I think this is a legitimate request.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
   Last reconfirmed|0000-00-00 00:00:00         |2005-05-17 18:20:05
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21581

[Bug c++/21581] (optimisation) Functions in anonymous namespaces should default to "hidden" visibility

[arjanv at redhat dot com]

------- Additional Comments From arjanv at redhat dot com  2005-05-17 17:44 -------
As for andrews comment, the default could be hidden/private, where "export"
would override the default to be non-private. 



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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21581

[Bug c++/21581] (optimisation) Functions in anonymous namespaces should default to "hidden" visibility

[arjanv at redhat dot com]

------- Additional Comments From arjanv at redhat dot com  2005-05-17 17:33 -------
I think you mean bug 18267 
However bug 18267 is about static versus non-static linkage.
What I'm suggesting is visibility attribute level, eg non-static but hidden
visibility. 

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21581

[Bug c++/21581] (optimisation) Functions in anonymous namespaces should default to "hidden" visibility

[bangerth at dealii dot org]

------- Additional Comments From bangerth at dealii dot org  2005-05-17 16:39 -------
Andrew's argument has been made a number of times, and is considered 
irrelevant 
until someone actually comes around and implements the 'export' keyword. 
This request is therefore definitely valid, but I close this PR since there 
are other duplicates of this somewhere in the database. 
 
W. 

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21581

[Bug c++/21581] (optimisation) Functions in anonymous namespaces should default to "hidden" visibility

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-05-15 14:21 -------
I don't think this is valid and here is why:
anynymous namespace and still be used for templates and export so calling it from another shared 
library is possible if we (GCC) implements export.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21581