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* [Bug c++/97453] New: Implement CWG issue 2303
@ 2020-10-16 5:41 kamleshbhalui at gmail dot com
2020-10-16 13:59 ` [Bug c++/97453] " mpolacek at gcc dot gnu.org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: kamleshbhalui at gmail dot com @ 2020-10-16 5:41 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97453
Bug ID: 97453
Summary: Implement CWG issue 2303
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: kamleshbhalui at gmail dot com
Target Milestone: ---
https://wg21.cmeerw.net/cwg/issue2303
Testcases like below should compile.
$cat test.cc
template <typename... T> struct A;
template <> struct A<> {};
template <typename T, typename... Ts> struct A<T, Ts...> : A<Ts...> {};
struct B : A<int> {};
template <typename... T>
void f(const A<T...>&);
void g() {
f(B{});
}
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/97453] Implement CWG issue 2303
2020-10-16 5:41 [Bug c++/97453] New: Implement CWG issue 2303 kamleshbhalui at gmail dot com
@ 2020-10-16 13:59 ` mpolacek at gcc dot gnu.org
2020-10-21 10:52 ` kamleshbhalui at gmail dot com
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2020-10-16 13:59 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97453
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever confirmed|0 |1
CC| |mpolacek at gcc dot gnu.org
Blocks| |94404
Last reconfirmed| |2020-10-16
--- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Confirmed.
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94404
[Bug 94404] [meta-bug] C++ core issues
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/97453] Implement CWG issue 2303
2020-10-16 5:41 [Bug c++/97453] New: Implement CWG issue 2303 kamleshbhalui at gmail dot com
2020-10-16 13:59 ` [Bug c++/97453] " mpolacek at gcc dot gnu.org
@ 2020-10-21 10:52 ` kamleshbhalui at gmail dot com
2020-11-03 19:36 ` cvs-commit at gcc dot gnu.org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: kamleshbhalui at gmail dot com @ 2020-10-21 10:52 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97453
--- Comment #2 from Kamlesh Kumar <kamleshbhalui at gmail dot com> ---
patch: https://gcc.gnu.org/pipermail/gcc-patches/2020-October/556672.html
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/97453] Implement CWG issue 2303
2020-10-16 5:41 [Bug c++/97453] New: Implement CWG issue 2303 kamleshbhalui at gmail dot com
2020-10-16 13:59 ` [Bug c++/97453] " mpolacek at gcc dot gnu.org
2020-10-21 10:52 ` kamleshbhalui at gmail dot com
@ 2020-11-03 19:36 ` cvs-commit at gcc dot gnu.org
2020-11-10 0:04 ` mpolacek at gcc dot gnu.org
2022-02-01 12:49 ` marxin at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2020-11-03 19:36 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97453
--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jason Merrill <jason@gcc.gnu.org>:
https://gcc.gnu.org/g:ed7f9957bbb5e899099e1ef0e5f6234c453ef7da
commit r11-4693-ged7f9957bbb5e899099e1ef0e5f6234c453ef7da
Author: kamlesh kumar <kamleshbhalui@gmail.com>
Date: Mon Nov 2 20:40:21 2020 +0530
c++: DR2303, ambiguous base deduction [PR97453]
When there are two possible matches and one is a base of the other, choose
the derived class rather than fail.
gcc/cp/ChangeLog
2020-10-21 Kamlesh Kumar <kamleshbhalui@gmail.com>
Jason Merrill <jason@redhat.com>
PR c++/97453
DR2303
* pt.c (get_template_base): Consider closest base in template
deduction when base of base also matches.
gcc/testsuite/ChangeLog
2020-10-21 Kamlesh Kumar <kamleshbhalui@gmail.com>
* g++.dg/DRs/dr2303.C: New test.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/97453] Implement CWG issue 2303
2020-10-16 5:41 [Bug c++/97453] New: Implement CWG issue 2303 kamleshbhalui at gmail dot com
` (2 preceding siblings ...)
2020-11-03 19:36 ` cvs-commit at gcc dot gnu.org
@ 2020-11-10 0:04 ` mpolacek at gcc dot gnu.org
2022-02-01 12:49 ` marxin at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2020-11-10 0:04 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97453
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|NEW |RESOLVED
--- Comment #4 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Implemented in GCC 11.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/97453] Implement CWG issue 2303
2020-10-16 5:41 [Bug c++/97453] New: Implement CWG issue 2303 kamleshbhalui at gmail dot com
` (3 preceding siblings ...)
2020-11-10 0:04 ` mpolacek at gcc dot gnu.org
@ 2022-02-01 12:49 ` marxin at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: marxin at gcc dot gnu.org @ 2022-02-01 12:49 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97453
Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |eric.niebler at gmail dot com
--- Comment #5 from Martin Liška <marxin at gcc dot gnu.org> ---
*** Bug 60803 has been marked as a duplicate of this bug. ***
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2022-02-01 12:49 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2020-10-16 5:41 [Bug c++/97453] New: Implement CWG issue 2303 kamleshbhalui at gmail dot com
2020-10-16 13:59 ` [Bug c++/97453] " mpolacek at gcc dot gnu.org
2020-10-21 10:52 ` kamleshbhalui at gmail dot com
2020-11-03 19:36 ` cvs-commit at gcc dot gnu.org
2020-11-10 0:04 ` mpolacek at gcc dot gnu.org
2022-02-01 12:49 ` marxin at gcc dot gnu.org
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