* [Bug c++/93083] copy deduction rejected when doing CTAD for NTTP
[not found] <bug-93083-4@http.gcc.gnu.org/bugzilla/>
@ 2020-05-20 22:39 ` hanicka at hanicka dot net
2020-10-13 19:28 ` mpolacek at gcc dot gnu.org
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From: hanicka at hanicka dot net @ 2020-05-20 22:39 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93083
--- Comment #2 from Hana Dusíková <hanicka at hanicka dot net> ---
Same error is also triggered by template partial specialization:
```
template <int N> struct literal {
constexpr literal(const char (&input)[N]) noexcept { }
constexpr literal(const literal &) noexcept { }
};
template <literal Name, int id> struct field { };
template <literal Name> struct field<Name, 1u> { };
```
^ permalink raw reply [flat|nested] 11+ messages in thread* [Bug c++/93083] copy deduction rejected when doing CTAD for NTTP
[not found] <bug-93083-4@http.gcc.gnu.org/bugzilla/>
2020-05-20 22:39 ` [Bug c++/93083] copy deduction rejected when doing CTAD for NTTP hanicka at hanicka dot net
@ 2020-10-13 19:28 ` mpolacek at gcc dot gnu.org
2020-11-17 19:29 ` mpolacek at gcc dot gnu.org
` (8 subsequent siblings)
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From: mpolacek at gcc dot gnu.org @ 2020-10-13 19:28 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93083
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |mpolacek at gcc dot gnu.org
Ever confirmed|0 |1
Status|UNCONFIRMED |NEW
Last reconfirmed| |2020-10-13
--- Comment #3 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Confirmed.
^ permalink raw reply [flat|nested] 11+ messages in thread* [Bug c++/93083] copy deduction rejected when doing CTAD for NTTP
[not found] <bug-93083-4@http.gcc.gnu.org/bugzilla/>
2020-05-20 22:39 ` [Bug c++/93083] copy deduction rejected when doing CTAD for NTTP hanicka at hanicka dot net
2020-10-13 19:28 ` mpolacek at gcc dot gnu.org
@ 2020-11-17 19:29 ` mpolacek at gcc dot gnu.org
2020-11-17 19:30 ` mpolacek at gcc dot gnu.org
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From: mpolacek at gcc dot gnu.org @ 2020-11-17 19:29 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93083
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |janpmoeller at gmx dot de
--- Comment #4 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
*** Bug 97751 has been marked as a duplicate of this bug. ***
^ permalink raw reply [flat|nested] 11+ messages in thread* [Bug c++/93083] copy deduction rejected when doing CTAD for NTTP
[not found] <bug-93083-4@http.gcc.gnu.org/bugzilla/>
` (2 preceding siblings ...)
2020-11-17 19:29 ` mpolacek at gcc dot gnu.org
@ 2020-11-17 19:30 ` mpolacek at gcc dot gnu.org
2020-11-25 21:43 ` [Bug c++/93083] [C++20] " jason at gcc dot gnu.org
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From: mpolacek at gcc dot gnu.org @ 2020-11-17 19:30 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93083
--- Comment #5 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Short test from Bug 97751:
template <int N>
struct use_as_nttp {};
template <use_as_nttp Value>
struct has_nttp {};
template <use_as_nttp Value>
using has_nttp_2 = has_nttp<Value>;
^ permalink raw reply [flat|nested] 11+ messages in thread* [Bug c++/93083] [C++20] copy deduction rejected when doing CTAD for NTTP
[not found] <bug-93083-4@http.gcc.gnu.org/bugzilla/>
` (3 preceding siblings ...)
2020-11-17 19:30 ` mpolacek at gcc dot gnu.org
@ 2020-11-25 21:43 ` jason at gcc dot gnu.org
2020-12-04 22:50 ` cvs-commit at gcc dot gnu.org
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From: jason at gcc dot gnu.org @ 2020-11-25 21:43 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93083
Jason Merrill <jason at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Assignee|unassigned at gcc dot gnu.org |jason at gcc dot gnu.org
Status|NEW |ASSIGNED
^ permalink raw reply [flat|nested] 11+ messages in thread* [Bug c++/93083] [C++20] copy deduction rejected when doing CTAD for NTTP
[not found] <bug-93083-4@http.gcc.gnu.org/bugzilla/>
` (4 preceding siblings ...)
2020-11-25 21:43 ` [Bug c++/93083] [C++20] " jason at gcc dot gnu.org
@ 2020-12-04 22:50 ` cvs-commit at gcc dot gnu.org
2020-12-09 18:09 ` cvs-commit at gcc dot gnu.org
` (4 subsequent siblings)
10 siblings, 0 replies; 11+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2020-12-04 22:50 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93083
--- Comment #6 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:a95753214b55d21e5b44eeb098cccf88d44c94dd
commit r11-5752-ga95753214b55d21e5b44eeb098cccf88d44c94dd
Author: Jason Merrill <jason@redhat.com>
Date: Wed Nov 25 17:05:24 2020 -0500
c++: Fix deduction from auto template parameter [PR93083]
The check in do_class_deduction to handle passing one class placeholder
template parm as an argument for itself needed to be extended to also
handle
equivalent parms from other templates.
gcc/cp/ChangeLog:
PR c++/93083
* pt.c (convert_template_argument): Handle equivalent placeholders.
(do_class_deduction): Look through EXPR_PACK_EXPANSION, too.
gcc/testsuite/ChangeLog:
PR c++/93083
* g++.dg/cpp2a/nontype-class40.C: New test.
^ permalink raw reply [flat|nested] 11+ messages in thread* [Bug c++/93083] [C++20] copy deduction rejected when doing CTAD for NTTP
[not found] <bug-93083-4@http.gcc.gnu.org/bugzilla/>
` (5 preceding siblings ...)
2020-12-04 22:50 ` cvs-commit at gcc dot gnu.org
@ 2020-12-09 18:09 ` cvs-commit at gcc dot gnu.org
2020-12-09 18:13 ` jason at gcc dot gnu.org
` (3 subsequent siblings)
10 siblings, 0 replies; 11+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2020-12-09 18:09 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93083
--- Comment #7 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-10 branch has been updated by Jason Merrill
<jason@gcc.gnu.org>:
https://gcc.gnu.org/g:e6e42891d80c12c4fac36d6273b8d4e31a3d0a2a
commit r10-9133-ge6e42891d80c12c4fac36d6273b8d4e31a3d0a2a
Author: Jason Merrill <jason@redhat.com>
Date: Wed Nov 25 17:05:24 2020 -0500
c++: Fix deduction from auto template parameter [PR93083]
The check in do_class_deduction to handle passing one class placeholder
template parm as an argument for itself needed to be extended to also
handle
equivalent parms from other templates.
gcc/cp/ChangeLog:
PR c++/93083
* pt.c (convert_template_argument): Handle equivalent placeholders.
(do_class_deduction): Look through EXPR_PACK_EXPANSION, too.
gcc/testsuite/ChangeLog:
PR c++/93083
* g++.dg/cpp2a/nontype-class40.C: New test.
^ permalink raw reply [flat|nested] 11+ messages in thread* [Bug c++/93083] [C++20] copy deduction rejected when doing CTAD for NTTP
[not found] <bug-93083-4@http.gcc.gnu.org/bugzilla/>
` (6 preceding siblings ...)
2020-12-09 18:09 ` cvs-commit at gcc dot gnu.org
@ 2020-12-09 18:13 ` jason at gcc dot gnu.org
2021-04-22 19:41 ` ppalka at gcc dot gnu.org
` (2 subsequent siblings)
10 siblings, 0 replies; 11+ messages in thread
From: jason at gcc dot gnu.org @ 2020-12-09 18:13 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93083
Jason Merrill <jason at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
Target Milestone|--- |10.3
--- Comment #8 from Jason Merrill <jason at gcc dot gnu.org> ---
Fixed for 10.2/11.
^ permalink raw reply [flat|nested] 11+ messages in thread* [Bug c++/93083] [C++20] copy deduction rejected when doing CTAD for NTTP
[not found] <bug-93083-4@http.gcc.gnu.org/bugzilla/>
` (7 preceding siblings ...)
2020-12-09 18:13 ` jason at gcc dot gnu.org
@ 2021-04-22 19:41 ` ppalka at gcc dot gnu.org
2022-03-09 17:10 ` ppalka at gcc dot gnu.org
2023-11-10 16:21 ` ppalka at gcc dot gnu.org
10 siblings, 0 replies; 11+ messages in thread
From: ppalka at gcc dot gnu.org @ 2021-04-22 19:41 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93083
Patrick Palka <ppalka at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |mateusz.pusz at gmail dot com
--- Comment #9 from Patrick Palka <ppalka at gcc dot gnu.org> ---
*** Bug 95015 has been marked as a duplicate of this bug. ***
^ permalink raw reply [flat|nested] 11+ messages in thread* [Bug c++/93083] [C++20] copy deduction rejected when doing CTAD for NTTP
[not found] <bug-93083-4@http.gcc.gnu.org/bugzilla/>
` (8 preceding siblings ...)
2021-04-22 19:41 ` ppalka at gcc dot gnu.org
@ 2022-03-09 17:10 ` ppalka at gcc dot gnu.org
2023-11-10 16:21 ` ppalka at gcc dot gnu.org
10 siblings, 0 replies; 11+ messages in thread
From: ppalka at gcc dot gnu.org @ 2022-03-09 17:10 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93083
Patrick Palka <ppalka at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |nicole.king464 at gmail dot com
--- Comment #10 from Patrick Palka <ppalka at gcc dot gnu.org> ---
*** Bug 96331 has been marked as a duplicate of this bug. ***
^ permalink raw reply [flat|nested] 11+ messages in thread* [Bug c++/93083] [C++20] copy deduction rejected when doing CTAD for NTTP
[not found] <bug-93083-4@http.gcc.gnu.org/bugzilla/>
` (9 preceding siblings ...)
2022-03-09 17:10 ` ppalka at gcc dot gnu.org
@ 2023-11-10 16:21 ` ppalka at gcc dot gnu.org
10 siblings, 0 replies; 11+ messages in thread
From: ppalka at gcc dot gnu.org @ 2023-11-10 16:21 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93083
--- Comment #11 from Patrick Palka <ppalka at gcc dot gnu.org> ---
*** Bug 92101 has been marked as a duplicate of this bug. ***
^ permalink raw reply [flat|nested] 11+ messages in thread