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* [Bug c++/96082] New: GCC rejects the template disambiguator with "typename"
@ 2020-07-06 15:59 haoxintu at gmail dot com
2020-07-07 7:22 ` [Bug c++/96082] [9/10/11 Regression] " rguenth at gcc dot gnu.org
` (5 more replies)
0 siblings, 6 replies; 7+ messages in thread
From: haoxintu at gmail dot com @ 2020-07-06 15:59 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96082
Bug ID: 96082
Summary: GCC rejects the template disambiguator with "typename"
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Keywords: rejects-valid
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: haoxintu at gmail dot com
Target Milestone: ---
Hi, all.
This code, test.cc, GCC rejects it in versions from 9.1 to trunk, but accepts
it from 8.3 to 4.8 versions.
$cat test.cc
template <class> class A {};
int main () {
typename :: template A <int> a;
}
$g++ test.cc
test.cc: In function ‘int main()’:
test.cc:3:26: error: ‘template’ must follow a nested-name-specifier
3 | typename :: template A <int> a;
| ^~~~~~~
test.cc:3:26: error: expected ‘(’
3 | typename :: template A <int> a;
| ^~~~~~~
|
I also tested in clang, icc, and msvc, they all accept this code.
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug c++/96082] [9/10/11 Regression] GCC rejects the template disambiguator with "typename"
2020-07-06 15:59 [Bug c++/96082] New: GCC rejects the template disambiguator with "typename" haoxintu at gmail dot com
@ 2020-07-07 7:22 ` rguenth at gcc dot gnu.org
2020-07-07 8:52 ` marxin at gcc dot gnu.org
` (4 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: rguenth at gcc dot gnu.org @ 2020-07-07 7:22 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96082
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |9.4
Summary|GCC rejects the template |[9/10/11 Regression] GCC
|disambiguator with |rejects the template
|"typename" |disambiguator with
| |"typename"
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug c++/96082] [9/10/11 Regression] GCC rejects the template disambiguator with "typename"
2020-07-06 15:59 [Bug c++/96082] New: GCC rejects the template disambiguator with "typename" haoxintu at gmail dot com
2020-07-07 7:22 ` [Bug c++/96082] [9/10/11 Regression] " rguenth at gcc dot gnu.org
@ 2020-07-07 8:52 ` marxin at gcc dot gnu.org
2020-08-03 23:59 ` mpolacek at gcc dot gnu.org
` (3 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: marxin at gcc dot gnu.org @ 2020-07-07 8:52 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96082
Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever confirmed|0 |1
Last reconfirmed| |2020-07-07
CC| |marxin at gcc dot gnu.org,
| |mpolacek at gcc dot gnu.org
--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Confirmed, started to be rejected with r9-4235-g9047dd02b84c42d6.
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug c++/96082] [9/10/11 Regression] GCC rejects the template disambiguator with "typename"
2020-07-06 15:59 [Bug c++/96082] New: GCC rejects the template disambiguator with "typename" haoxintu at gmail dot com
2020-07-07 7:22 ` [Bug c++/96082] [9/10/11 Regression] " rguenth at gcc dot gnu.org
2020-07-07 8:52 ` marxin at gcc dot gnu.org
@ 2020-08-03 23:59 ` mpolacek at gcc dot gnu.org
2020-08-04 17:41 ` cvs-commit at gcc dot gnu.org
` (2 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2020-08-03 23:59 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96082
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |mpolacek at gcc dot gnu.org
--- Comment #2 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
I have a patch.
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug c++/96082] [9/10/11 Regression] GCC rejects the template disambiguator with "typename"
2020-07-06 15:59 [Bug c++/96082] New: GCC rejects the template disambiguator with "typename" haoxintu at gmail dot com
` (2 preceding siblings ...)
2020-08-03 23:59 ` mpolacek at gcc dot gnu.org
@ 2020-08-04 17:41 ` cvs-commit at gcc dot gnu.org
2020-08-04 18:17 ` [Bug c++/96082] [9/10 " cvs-commit at gcc dot gnu.org
2020-08-04 18:24 ` [Bug c++/96082] [9 " mpolacek at gcc dot gnu.org
5 siblings, 0 replies; 7+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2020-08-04 17:41 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96082
--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Marek Polacek <mpolacek@gcc.gnu.org>:
https://gcc.gnu.org/g:97def1f34c134d78d4423e9ac3e9b262417ea390
commit r11-2560-g97def1f34c134d78d4423e9ac3e9b262417ea390
Author: Marek Polacek <polacek@redhat.com>
Date: Tue Aug 4 09:35:25 2020 -0400
c++: Template keyword following :: [PR96082]
In r9-4235 I tried to make sure that the template keyword follows
a nested-name-specifier. :: is a valid nested-name-specifier, so
I also have to check 'globalscope' before giving the error.
gcc/cp/ChangeLog:
PR c++/96082
* parser.c (cp_parser_elaborated_type_specifier): Allow
'template' following ::.
gcc/testsuite/ChangeLog:
PR c++/96082
* g++.dg/template/template-keyword3.C: New test.
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug c++/96082] [9/10 Regression] GCC rejects the template disambiguator with "typename"
2020-07-06 15:59 [Bug c++/96082] New: GCC rejects the template disambiguator with "typename" haoxintu at gmail dot com
` (3 preceding siblings ...)
2020-08-04 17:41 ` cvs-commit at gcc dot gnu.org
@ 2020-08-04 18:17 ` cvs-commit at gcc dot gnu.org
2020-08-04 18:24 ` [Bug c++/96082] [9 " mpolacek at gcc dot gnu.org
5 siblings, 0 replies; 7+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2020-08-04 18:17 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96082
--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-10 branch has been updated by Marek Polacek
<mpolacek@gcc.gnu.org>:
https://gcc.gnu.org/g:1c4d223d37d067f5d372688c0c0cc5a05d977df7
commit r10-8576-g1c4d223d37d067f5d372688c0c0cc5a05d977df7
Author: Marek Polacek <polacek@redhat.com>
Date: Tue Aug 4 09:35:25 2020 -0400
c++: Template keyword following :: [PR96082]
In r9-4235 I tried to make sure that the template keyword follows
a nested-name-specifier. :: is a valid nested-name-specifier, so
I also have to check 'globalscope' before giving the error.
gcc/cp/ChangeLog:
PR c++/96082
* parser.c (cp_parser_elaborated_type_specifier): Allow
'template' following ::.
gcc/testsuite/ChangeLog:
PR c++/96082
* g++.dg/template/template-keyword3.C: New test.
(cherry picked from commit 97def1f34c134d78d4423e9ac3e9b262417ea390)
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug c++/96082] [9 Regression] GCC rejects the template disambiguator with "typename"
2020-07-06 15:59 [Bug c++/96082] New: GCC rejects the template disambiguator with "typename" haoxintu at gmail dot com
` (4 preceding siblings ...)
2020-08-04 18:17 ` [Bug c++/96082] [9/10 " cvs-commit at gcc dot gnu.org
@ 2020-08-04 18:24 ` mpolacek at gcc dot gnu.org
5 siblings, 0 replies; 7+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2020-08-04 18:24 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96082
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Summary|[9/10 Regression] GCC |[9 Regression] GCC rejects
|rejects the template |the template disambiguator
|disambiguator with |with "typename"
|"typename" |
Status|ASSIGNED |RESOLVED
--- Comment #5 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Fixed for GCC 10.3+.
^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2020-08-04 18:24 UTC | newest]
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2020-07-06 15:59 [Bug c++/96082] New: GCC rejects the template disambiguator with "typename" haoxintu at gmail dot com
2020-07-07 7:22 ` [Bug c++/96082] [9/10/11 Regression] " rguenth at gcc dot gnu.org
2020-07-07 8:52 ` marxin at gcc dot gnu.org
2020-08-03 23:59 ` mpolacek at gcc dot gnu.org
2020-08-04 17:41 ` cvs-commit at gcc dot gnu.org
2020-08-04 18:17 ` [Bug c++/96082] [9/10 " cvs-commit at gcc dot gnu.org
2020-08-04 18:24 ` [Bug c++/96082] [9 " mpolacek at gcc dot gnu.org
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