* [Bug c++/79501] member deduction guide not recognized
[not found] <bug-79501-4@http.gcc.gnu.org/bugzilla/>
@ 2020-09-16 20:03 ` mpolacek at gcc dot gnu.org
2020-09-16 20:32 ` mpolacek at gcc dot gnu.org
` (4 subsequent siblings)
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From: mpolacek at gcc dot gnu.org @ 2020-09-16 20:03 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79501
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jeanmichael.celerier@gmail.
| |com
--- Comment #2 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
*** Bug 86403 has been marked as a duplicate of this bug. ***
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug c++/79501] member deduction guide not recognized
[not found] <bug-79501-4@http.gcc.gnu.org/bugzilla/>
2020-09-16 20:03 ` [Bug c++/79501] member deduction guide not recognized mpolacek at gcc dot gnu.org
@ 2020-09-16 20:32 ` mpolacek at gcc dot gnu.org
2021-07-09 18:11 ` ppalka at gcc dot gnu.org
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From: mpolacek at gcc dot gnu.org @ 2020-09-16 20:32 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79501
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |mpolacek at gcc dot gnu.org
--- Comment #3 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Expanded test for the second problem:
// PR c++/79501
// { dg-do compile { target c++17 } }
struct X {
template<typename T>
struct B { T t; };
// In C++20, should work even without this guide (P1816).
template<typename T> B(T) -> B<T>;
void foo () {
B{1};
}
};
void
fn ()
{
X x;
x.foo ();
}
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug c++/79501] member deduction guide not recognized
[not found] <bug-79501-4@http.gcc.gnu.org/bugzilla/>
2020-09-16 20:03 ` [Bug c++/79501] member deduction guide not recognized mpolacek at gcc dot gnu.org
2020-09-16 20:32 ` mpolacek at gcc dot gnu.org
@ 2021-07-09 18:11 ` ppalka at gcc dot gnu.org
2021-07-12 20:35 ` cvs-commit at gcc dot gnu.org
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From: ppalka at gcc dot gnu.org @ 2021-07-09 18:11 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79501
Patrick Palka <ppalka at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Assignee|unassigned at gcc dot gnu.org |ppalka at gcc dot gnu.org
Status|NEW |ASSIGNED
CC| |ppalka at gcc dot gnu.org
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[not found] <bug-79501-4@http.gcc.gnu.org/bugzilla/>
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2021-07-09 18:11 ` ppalka at gcc dot gnu.org
@ 2021-07-12 20:35 ` cvs-commit at gcc dot gnu.org
2021-08-11 20:00 ` cvs-commit at gcc dot gnu.org
2021-08-11 20:05 ` ppalka at gcc dot gnu.org
5 siblings, 0 replies; 6+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2021-07-12 20:35 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79501
--- Comment #4 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:8d75b8830e9dafb4e0c400c723653512adf40295
commit r12-2260-g8d75b8830e9dafb4e0c400c723653512adf40295
Author: Patrick Palka <ppalka@redhat.com>
Date: Mon Jul 12 16:35:18 2021 -0400
c++: permit deduction guides at class scope [PR79501]
This adds support for declaring (class-scope) deduction guides for a
member class template. Fortunately it seems only a couple of changes
are needed in order for the existing CTAD machinery to handle them
properly: we need to make sure to give them a FUNCTION_TYPE instead of a
METHOD_TYPE, and we need to avoid using a BASELINK when looking them up.
PR c++/79501
PR c++/100983
gcc/cp/ChangeLog:
* decl.c (grokfndecl): Don't require that deduction guides are
declared at namespace scope. Check that class-scope deduction
guides have the same access as the member class template.
(grokdeclarator): Pretend class-scope deduction guides are static.
* search.c (lookup_member): Don't use a BASELINK for (class-scope)
deduction guides.
gcc/testsuite/ChangeLog:
* g++.dg/cpp1z/class-deduction92.C: New test.
* g++.dg/cpp1z/class-deduction93.C: New test.
* g++.dg/cpp1z/class-deduction94.C: New test.
* g++.dg/cpp1z/class-deduction95.C: New test.
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[not found] <bug-79501-4@http.gcc.gnu.org/bugzilla/>
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2021-07-12 20:35 ` cvs-commit at gcc dot gnu.org
@ 2021-08-11 20:00 ` cvs-commit at gcc dot gnu.org
2021-08-11 20:05 ` ppalka at gcc dot gnu.org
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From: cvs-commit at gcc dot gnu.org @ 2021-08-11 20:00 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79501
--- Comment #5 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:7e39d1a15f5276f72ee478a692445569bb646e65
commit r12-2860-g7e39d1a15f5276f72ee478a692445569bb646e65
Author: Patrick Palka <ppalka@redhat.com>
Date: Wed Aug 11 15:59:22 2021 -0400
c++: recognize class-scope non-template dguides [PR79501]
It looks like we still don't recognize class-scope non-template
deduction guides even after r12-2260. This is because deduction guides
are tagged as such in cp_parser_init_declarator after calling
cp_parser_declarator, but in cp_parser_member_declaration we call
cp_parser_declarator directly.
So let's tag them in cp_parser_member_declaration as well.
PR c++/79501
gcc/cp/ChangeLog:
* parser.c (maybe_adjust_declarator_for_dguide): New, split
out from ...
(cp_parser_init_declarator): ... here.
(cp_parser_member_declaration): Use it.
gcc/testsuite/ChangeLog:
* g++.dg/cpp1z/class-deduction98.C: New test.
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug c++/79501] member deduction guide not recognized
[not found] <bug-79501-4@http.gcc.gnu.org/bugzilla/>
` (4 preceding siblings ...)
2021-08-11 20:00 ` cvs-commit at gcc dot gnu.org
@ 2021-08-11 20:05 ` ppalka at gcc dot gnu.org
5 siblings, 0 replies; 6+ messages in thread
From: ppalka at gcc dot gnu.org @ 2021-08-11 20:05 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79501
Patrick Palka <ppalka at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|ASSIGNED |RESOLVED
Target Milestone|--- |12.0
--- Comment #6 from Patrick Palka <ppalka at gcc dot gnu.org> ---
Fixed for GCC 12.
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