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* [Bug c++/100652] New: Uexpanded parameter pack in partial specialization of variable template not rejected
@ 2021-05-18 14:53 ppalka at gcc dot gnu.org
2021-05-18 15:17 ` [Bug c++/100652] Unexpanded " mpolacek at gcc dot gnu.org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: ppalka at gcc dot gnu.org @ 2021-05-18 14:53 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100652
Bug ID: 100652
Summary: Uexpanded parameter pack in partial specialization of
variable template not rejected
Product: gcc
Version: 10.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: ppalka at gcc dot gnu.org
Target Milestone: ---
template <class... Ts> struct A { };
template <class T> inline constexpr bool is_a = false;
template <class... Ts> inline constexpr bool is_a<A<Ts>> = true;
GCC silently accepts the above testcase and doesn't diagnose the unexpanded
parameter pack Ts inside the partial specialization of 'is_a'.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c++/100652] Unexpanded parameter pack in partial specialization of variable template not rejected
2021-05-18 14:53 [Bug c++/100652] New: Uexpanded parameter pack in partial specialization of variable template not rejected ppalka at gcc dot gnu.org
@ 2021-05-18 15:17 ` mpolacek at gcc dot gnu.org
2021-11-05 21:06 ` ppalka at gcc dot gnu.org
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2021-05-18 15:17 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100652
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |accepts-invalid
Last reconfirmed| |2021-05-18
Summary|Uexpanded parameter pack in |Unexpanded parameter pack
|partial specialization of |in partial specialization
|variable template not |of variable template not
|rejected |rejected
Status|UNCONFIRMED |NEW
CC| |mpolacek at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Confirmed.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c++/100652] Unexpanded parameter pack in partial specialization of variable template not rejected
2021-05-18 14:53 [Bug c++/100652] New: Uexpanded parameter pack in partial specialization of variable template not rejected ppalka at gcc dot gnu.org
2021-05-18 15:17 ` [Bug c++/100652] Unexpanded " mpolacek at gcc dot gnu.org
@ 2021-11-05 21:06 ` ppalka at gcc dot gnu.org
2021-11-09 14:11 ` cvs-commit at gcc dot gnu.org
2021-11-09 14:11 ` ppalka at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: ppalka at gcc dot gnu.org @ 2021-11-05 21:06 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100652
Patrick Palka <ppalka at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |ppalka at gcc dot gnu.org
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c++/100652] Unexpanded parameter pack in partial specialization of variable template not rejected
2021-05-18 14:53 [Bug c++/100652] New: Uexpanded parameter pack in partial specialization of variable template not rejected ppalka at gcc dot gnu.org
2021-05-18 15:17 ` [Bug c++/100652] Unexpanded " mpolacek at gcc dot gnu.org
2021-11-05 21:06 ` ppalka at gcc dot gnu.org
@ 2021-11-09 14:11 ` cvs-commit at gcc dot gnu.org
2021-11-09 14:11 ` ppalka at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2021-11-09 14:11 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100652
--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Patrick Palka <ppalka@gcc.gnu.org>:
https://gcc.gnu.org/g:a19f09cb03d7f69377e6d12162e5d6df78a82849
commit r12-5052-ga19f09cb03d7f69377e6d12162e5d6df78a82849
Author: Patrick Palka <ppalka@redhat.com>
Date: Tue Nov 9 09:09:12 2021 -0500
c++: unexpanded pack in var tmpl partial spec [PR100652]
Here we're failing to spot a bare parameter pack appearing in the argument
list of a variable template partial specialization because we only look for
them within the decl's TREE_TYPE, which is sufficient for class templates
but not for variable templates.
PR c++/100652
gcc/cp/ChangeLog:
* pt.c (push_template_decl): Check for bare parameter packs in
the argument list of a variable template partial specialization.
gcc/testsuite/ChangeLog:
* g++.dg/cpp1y/var-templ69.C: New test.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c++/100652] Unexpanded parameter pack in partial specialization of variable template not rejected
2021-05-18 14:53 [Bug c++/100652] New: Uexpanded parameter pack in partial specialization of variable template not rejected ppalka at gcc dot gnu.org
` (2 preceding siblings ...)
2021-11-09 14:11 ` cvs-commit at gcc dot gnu.org
@ 2021-11-09 14:11 ` ppalka at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: ppalka at gcc dot gnu.org @ 2021-11-09 14:11 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100652
Patrick Palka <ppalka at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
Target Milestone|--- |12.0
--- Comment #3 from Patrick Palka <ppalka at gcc dot gnu.org> ---
Fixed for GCC 12.
^ permalink raw reply [flat|nested] 5+ messages in thread
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2021-05-18 14:53 [Bug c++/100652] New: Uexpanded parameter pack in partial specialization of variable template not rejected ppalka at gcc dot gnu.org
2021-05-18 15:17 ` [Bug c++/100652] Unexpanded " mpolacek at gcc dot gnu.org
2021-11-05 21:06 ` ppalka at gcc dot gnu.org
2021-11-09 14:11 ` cvs-commit at gcc dot gnu.org
2021-11-09 14:11 ` ppalka at gcc dot gnu.org
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