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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) -- links below jump to the message on this page -- 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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