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* [Bug c++/58856] New: [4.9 Regression] spurious 'wrong number of template arguments' error for template alias
@ 2013-10-23 20:23 st at quanttec dot com
2013-10-24 9:05 ` [Bug c++/58856] " rguenth at gcc dot gnu.org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: st at quanttec dot com @ 2013-10-23 20:23 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58856
Bug ID: 58856
Summary: [4.9 Regression] spurious 'wrong number of template
arguments' error for template alias
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: st at quanttec dot com
The current trunk version of GCC fails to compile the following valid sample
template <typename T>
struct U1 {};
template <typename T1, typename... Ts>
using U2 = U1<T1>;
template <typename T1, typename... Ts>
using U3 = U2<T1, Ts...>;
> g++ -std=c++11 -Wall -Wextra test.cpp
test.cpp:8:24: error: wrong number of template arguments (2, should be 1)
using U3 = U2<T1, Ts...>;
^
test.cpp:2:8: error: provided for ‘template<class T> struct U1’
struct U1 {};
^
This bug doesn't seem to exist in
g++ (GCC) 4.8.1 20130603 (Red Hat 4.8.1-1)
and in
g++ (Built by MinGW-builds project) 4.9.0 20130717 (experimental)
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From: "paolo.carlini at oracle dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/58856] [4.9 Regression] spurious 'wrong number of template arguments' error for template alias
Date: Wed, 23 Oct 2013 20:36:00 -0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
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X-Bugzilla-Product: gcc
X-Bugzilla-Component: c++
X-Bugzilla-Version: 4.9.0
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X-Bugzilla-Severity: normal
X-Bugzilla-Who: paolo.carlini at oracle dot com
X-Bugzilla-Status: NEW
X-Bugzilla-Priority: P2
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http://gcc.gnu.org/bugzilla/show_bug.cgi?idX856
Paolo Carlini <paolo.carlini at oracle dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P2
Status|UNCONFIRMED |NEW
Last reconfirmed| |2013-10-23
Ever confirmed|0 |1
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug c++/58856] [4.9 Regression] spurious 'wrong number of template arguments' error for template alias 2013-10-23 20:23 [Bug c++/58856] New: [4.9 Regression] spurious 'wrong number of template arguments' error for template alias st at quanttec dot com @ 2013-10-24 9:05 ` rguenth at gcc dot gnu.org 2013-10-31 13:54 ` paolo.carlini at oracle dot com ` (3 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: rguenth at gcc dot gnu.org @ 2013-10-24 9:05 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58856 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|--- |4.9.0 ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/58856] [4.9 Regression] spurious 'wrong number of template arguments' error for template alias 2013-10-23 20:23 [Bug c++/58856] New: [4.9 Regression] spurious 'wrong number of template arguments' error for template alias st at quanttec dot com 2013-10-24 9:05 ` [Bug c++/58856] " rguenth at gcc dot gnu.org @ 2013-10-31 13:54 ` paolo.carlini at oracle dot com 2014-01-03 4:05 ` jason at gcc dot gnu.org ` (2 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: paolo.carlini at oracle dot com @ 2013-10-31 13:54 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58856 Paolo Carlini <paolo.carlini at oracle dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jason at gcc dot gnu.org --- Comment #1 from Paolo Carlini <paolo.carlini at oracle dot com> --- Caused by r201470: DR 1286 * pt.c (get_underlying_template): New. (convert_template_argument, lookup_template_class_1): Use it. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/58856] [4.9 Regression] spurious 'wrong number of template arguments' error for template alias 2013-10-23 20:23 [Bug c++/58856] New: [4.9 Regression] spurious 'wrong number of template arguments' error for template alias st at quanttec dot com 2013-10-24 9:05 ` [Bug c++/58856] " rguenth at gcc dot gnu.org 2013-10-31 13:54 ` paolo.carlini at oracle dot com @ 2014-01-03 4:05 ` jason at gcc dot gnu.org 2014-01-07 21:28 ` jason at gcc dot gnu.org 2014-01-17 10:18 ` paolo.carlini at oracle dot com 4 siblings, 0 replies; 6+ messages in thread From: jason at gcc dot gnu.org @ 2014-01-03 4:05 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58856 Jason Merrill <jason at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |ASSIGNED Assignee|unassigned at gcc dot gnu.org |jason at gcc dot gnu.org ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/58856] [4.9 Regression] spurious 'wrong number of template arguments' error for template alias 2013-10-23 20:23 [Bug c++/58856] New: [4.9 Regression] spurious 'wrong number of template arguments' error for template alias st at quanttec dot com ` (2 preceding siblings ...) 2014-01-03 4:05 ` jason at gcc dot gnu.org @ 2014-01-07 21:28 ` jason at gcc dot gnu.org 2014-01-17 10:18 ` paolo.carlini at oracle dot com 4 siblings, 0 replies; 6+ messages in thread From: jason at gcc dot gnu.org @ 2014-01-07 21:28 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58856 --- Comment #2 from Jason Merrill <jason at gcc dot gnu.org> --- Author: jason Date: Tue Jan 7 21:28:33 2014 New Revision: 206406 URL: http://gcc.gnu.org/viewcvs?rev=206406&root=gcc&view=rev Log: PR c++/58856 * pt.c (num_innermost_template_parms): New. (get_underlying_template): Use it. Added: trunk/gcc/testsuite/g++.dg/cpp0x/alias-decl-39.C Modified: trunk/gcc/cp/ChangeLog trunk/gcc/cp/pt.c ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/58856] [4.9 Regression] spurious 'wrong number of template arguments' error for template alias 2013-10-23 20:23 [Bug c++/58856] New: [4.9 Regression] spurious 'wrong number of template arguments' error for template alias st at quanttec dot com ` (3 preceding siblings ...) 2014-01-07 21:28 ` jason at gcc dot gnu.org @ 2014-01-17 10:18 ` paolo.carlini at oracle dot com 4 siblings, 0 replies; 6+ messages in thread From: paolo.carlini at oracle dot com @ 2014-01-17 10:18 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58856 Paolo Carlini <paolo.carlini at oracle dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED CC|jason at gcc dot gnu.org | Resolution|--- |FIXED --- Comment #3 from Paolo Carlini <paolo.carlini at oracle dot com> --- Thus fixed. ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2014-01-17 10:18 UTC | newest] Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2013-10-23 20:23 [Bug c++/58856] New: [4.9 Regression] spurious 'wrong number of template arguments' error for template alias st at quanttec dot com 2013-10-24 9:05 ` [Bug c++/58856] " rguenth at gcc dot gnu.org 2013-10-31 13:54 ` paolo.carlini at oracle dot com 2014-01-03 4:05 ` jason at gcc dot gnu.org 2014-01-07 21:28 ` jason at gcc dot gnu.org 2014-01-17 10:18 ` paolo.carlini at oracle dot com
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