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* [Bug c++/50586] New: Template argument of type "pointer to function" of a template class causes usage error if template is instantiated with pointer-to-private-static-member-function
@ 2011-10-01 9:35 mouchtaris at gmail dot com
2011-10-01 15:18 ` [Bug c++/50586] " daniel.kruegler at googlemail dot com
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: mouchtaris at gmail dot com @ 2011-10-01 9:35 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50586
Bug #: 50586
Summary: Template argument of type "pointer to function" of a
template class causes usage error if template is
instantiated with
pointer-to-private-static-member-function
Classification: Unclassified
Product: gcc
Version: 4.6.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: mouchtaris@gmail.com
Created attachment 25390
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25390
A small test file exhibiting the error.
If there is a declared template class, which accepts a pointer-to-function as a
non-type template parameter:
//////////////////////////
template <int (*f)(void)>
struct caller
{ int operator () (void) const { return (*f)(); } };
//////////////////////////
and is instantiated in a class with a pointer to a private static member
function:
//////////////////////////
class A {
static int f (void) { return 0; }
public:
caller<&f> get;
};
//////////////////////////
then G++ reports that "f" is private when used in the context of
caller::operator().
I haven't found anything in the standard that would impose this restriction.
(As a cue, this was reported as an error as well in older version of the vc
compiler, but in version 16.00 it is not an error any more)
I am attaching a small test file. I am not attaching any preprocessed file, as
there is no need. No preprocessor directives are used in this test.
I hope this has not been dealt before.
----------------- Detailed information -------------------
*** Compiler version: ***
Using built-in specs.
COLLECT_GCC=g++
COLLECT_LTO_WRAPPER=/spare/root/libexec/gcc/i686-pc-linux-gnu/4.6.1/lto-wrapper
Target: i686-pc-linux-gnu
Configured with: ../gcc-4.6.1/configure --prefix=/spare/root
Thread model: posix
gcc version 4.6.1 (GCC)
*** Compilation command: ***
g++ -ansi -pedantic -Wall -Wextra t.cpp
*** Compiler output: ***
t.cpp: In member function 'int caller<f>::operator()() const [with int (* f)()
= A::f]':
t.cpp:26: instantiated from here
t.cpp:13: error: 'static int A::f()' is private
t.cpp:5: error: within this context
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/50586] Template argument of type "pointer to function" of a template class causes usage error if template is instantiated with pointer-to-private-static-member-function
2011-10-01 9:35 [Bug c++/50586] New: Template argument of type "pointer to function" of a template class causes usage error if template is instantiated with pointer-to-private-static-member-function mouchtaris at gmail dot com
@ 2011-10-01 15:18 ` daniel.kruegler at googlemail dot com
2011-10-01 22:34 ` paolo.carlini at oracle dot com
2013-06-16 9:03 ` paolo.carlini at oracle dot com
2 siblings, 0 replies; 4+ messages in thread
From: daniel.kruegler at googlemail dot com @ 2011-10-01 15:18 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50586
Daniel Krügler <daniel.kruegler at googlemail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |daniel.kruegler at
| |googlemail dot com
--- Comment #1 from Daniel Krügler <daniel.kruegler at googlemail dot com> 2011-10-01 15:18:04 UTC ---
The problem also occurs with gcc 4.7.0 20110924 (experimental)
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/50586] Template argument of type "pointer to function" of a template class causes usage error if template is instantiated with pointer-to-private-static-member-function
2011-10-01 9:35 [Bug c++/50586] New: Template argument of type "pointer to function" of a template class causes usage error if template is instantiated with pointer-to-private-static-member-function mouchtaris at gmail dot com
2011-10-01 15:18 ` [Bug c++/50586] " daniel.kruegler at googlemail dot com
@ 2011-10-01 22:34 ` paolo.carlini at oracle dot com
2013-06-16 9:03 ` paolo.carlini at oracle dot com
2 siblings, 0 replies; 4+ messages in thread
From: paolo.carlini at oracle dot com @ 2011-10-01 22:34 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50586
Paolo Carlini <paolo.carlini at oracle dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2011-10-01
CC|mouchtaris at gmail dot com |
Ever Confirmed|0 |1
--- Comment #2 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-10-01 22:33:38 UTC ---
Confirmed of course. Doesn't seem a regression.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/50586] Template argument of type "pointer to function" of a template class causes usage error if template is instantiated with pointer-to-private-static-member-function
2011-10-01 9:35 [Bug c++/50586] New: Template argument of type "pointer to function" of a template class causes usage error if template is instantiated with pointer-to-private-static-member-function mouchtaris at gmail dot com
2011-10-01 15:18 ` [Bug c++/50586] " daniel.kruegler at googlemail dot com
2011-10-01 22:34 ` paolo.carlini at oracle dot com
@ 2013-06-16 9:03 ` paolo.carlini at oracle dot com
2 siblings, 0 replies; 4+ messages in thread
From: paolo.carlini at oracle dot com @ 2013-06-16 9:03 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50586
Paolo Carlini <paolo.carlini at oracle dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |DUPLICATE
--- Comment #3 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Dup.
*** This bug has been marked as a duplicate of bug 22149 ***
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2013-06-16 9:03 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2011-10-01 9:35 [Bug c++/50586] New: Template argument of type "pointer to function" of a template class causes usage error if template is instantiated with pointer-to-private-static-member-function mouchtaris at gmail dot com
2011-10-01 15:18 ` [Bug c++/50586] " daniel.kruegler at googlemail dot com
2011-10-01 22:34 ` paolo.carlini at oracle dot com
2013-06-16 9:03 ` paolo.carlini at oracle dot com
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