public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
* [Bug c++/54764] New: In class initialization of non-static lambda member can't be used in class with default template paramer
@ 2012-10-01 6:43 leonid at volnitsky dot com
2012-10-01 11:55 ` [Bug c++/54764] " daniel.kruegler at googlemail dot com
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: leonid at volnitsky dot com @ 2012-10-01 6:43 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54764
Bug #: 54764
Summary: In class initialization of non-static lambda member
can't be used in class with default template paramer
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: leonid@volnitsky.com
Clang-3.2 compiles (FWIW), but rejected by GCC 4.7.1 and 4.8:
------------------------------------------------------------------
#include <functional>
template<class T=void>
struct c{
std::function<int(int)> f = [](int i){return i+i;};
};
int main() {}
-------------------------------------------------------------------
Error message:
t.cc:6:31: error: default argument for template parameter for class enclosing
‘struct __lambda0’
function<int(int)> f = [](int i){return i+i;};
^
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/54764] In class initialization of non-static lambda member can't be used in class with default template paramer
2012-10-01 6:43 [Bug c++/54764] New: In class initialization of non-static lambda member can't be used in class with default template paramer leonid at volnitsky dot com
@ 2012-10-01 11:55 ` daniel.kruegler at googlemail dot com
2012-10-01 12:09 ` paolo.carlini at oracle dot com
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: daniel.kruegler at googlemail dot com @ 2012-10-01 11:55 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54764
Daniel Krügler <daniel.kruegler at googlemail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |daniel.kruegler at
| |googlemail dot com
--- Comment #1 from Daniel Krügler <daniel.kruegler at googlemail dot com> 2012-10-01 11:54:47 UTC ---
Simplified to get rid of library dependencies:
//-------------------
template<class T = void>
struct c
{
int (*f)(int) = [](int i){return i + i;};
};
//-------------------
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/54764] In class initialization of non-static lambda member can't be used in class with default template paramer
2012-10-01 6:43 [Bug c++/54764] New: In class initialization of non-static lambda member can't be used in class with default template paramer leonid at volnitsky dot com
2012-10-01 11:55 ` [Bug c++/54764] " daniel.kruegler at googlemail dot com
@ 2012-10-01 12:09 ` paolo.carlini at oracle dot com
2013-03-12 21:41 ` jason at gcc dot gnu.org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: paolo.carlini at oracle dot com @ 2012-10-01 12:09 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54764
Paolo Carlini <paolo.carlini at oracle dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2012-10-01
Blocks| |54367
Ever Confirmed|0 |1
--- Comment #2 from Paolo Carlini <paolo.carlini at oracle dot com> 2012-10-01 12:09:09 UTC ---
lambdas need work
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/54764] In class initialization of non-static lambda member can't be used in class with default template paramer
2012-10-01 6:43 [Bug c++/54764] New: In class initialization of non-static lambda member can't be used in class with default template paramer leonid at volnitsky dot com
2012-10-01 11:55 ` [Bug c++/54764] " daniel.kruegler at googlemail dot com
2012-10-01 12:09 ` paolo.carlini at oracle dot com
@ 2013-03-12 21:41 ` jason at gcc dot gnu.org
2013-03-17 2:40 ` jason at gcc dot gnu.org
2013-03-23 5:09 ` jason at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: jason at gcc dot gnu.org @ 2013-03-12 21:41 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54764
Jason Merrill <jason at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
CC| |jason at gcc dot gnu.org
AssignedTo|unassigned at gcc dot |jason at gcc dot gnu.org
|gnu.org |
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/54764] In class initialization of non-static lambda member can't be used in class with default template paramer
2012-10-01 6:43 [Bug c++/54764] New: In class initialization of non-static lambda member can't be used in class with default template paramer leonid at volnitsky dot com
` (2 preceding siblings ...)
2013-03-12 21:41 ` jason at gcc dot gnu.org
@ 2013-03-17 2:40 ` jason at gcc dot gnu.org
2013-03-23 5:09 ` jason at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: jason at gcc dot gnu.org @ 2013-03-17 2:40 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54764
--- Comment #3 from Jason Merrill <jason at gcc dot gnu.org> 2013-03-17 02:39:05 UTC ---
Author: jason
Date: Sun Mar 17 02:38:50 2013
New Revision: 196742
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=196742
Log:
PR c++/54764
PR c++/55972
* name-lookup.h (tag_scope): Add ts_lambda.
* semantics.c (begin_lambda_type): Use it.
* decl.c (xref_tag_1): Set CLASSTYPE_LAMBDA_EXPR.
* pt.c (check_default_tmpl_args): Ignore lambdas.
(push_template_decl_real): Handle lambdas.
* tree.c (no_linkage_check): Adjust lambda check.
Added:
trunk/gcc/testsuite/g++.dg/cpp0x/lambda/lambda-defarg4.C
trunk/gcc/testsuite/g++.dg/cpp0x/lambda/lambda-nsdmi3.C
Modified:
trunk/gcc/cp/ChangeLog
trunk/gcc/cp/decl.c
trunk/gcc/cp/name-lookup.h
trunk/gcc/cp/pt.c
trunk/gcc/cp/semantics.c
trunk/gcc/cp/tree.c
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/54764] In class initialization of non-static lambda member can't be used in class with default template paramer
2012-10-01 6:43 [Bug c++/54764] New: In class initialization of non-static lambda member can't be used in class with default template paramer leonid at volnitsky dot com
` (3 preceding siblings ...)
2013-03-17 2:40 ` jason at gcc dot gnu.org
@ 2013-03-23 5:09 ` jason at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: jason at gcc dot gnu.org @ 2013-03-23 5:09 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54764
Jason Merrill <jason at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
Target Milestone|--- |4.8.1
--- Comment #4 from Jason Merrill <jason at gcc dot gnu.org> 2013-03-23 05:09:17 UTC ---
Fixed for 4.8.1.
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2013-03-23 5:09 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2012-10-01 6:43 [Bug c++/54764] New: In class initialization of non-static lambda member can't be used in class with default template paramer leonid at volnitsky dot com
2012-10-01 11:55 ` [Bug c++/54764] " daniel.kruegler at googlemail dot com
2012-10-01 12:09 ` paolo.carlini at oracle dot com
2013-03-12 21:41 ` jason at gcc dot gnu.org
2013-03-17 2:40 ` jason at gcc dot gnu.org
2013-03-23 5:09 ` jason at gcc dot gnu.org
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).