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* [Bug c++/67041] New: [C++14] Variable template initialized by call to lambda does not compile
@ 2015-07-28 5:45 ldionne.2 at gmail dot com
2015-07-28 9:43 ` [Bug c++/67041] " redi at gcc dot gnu.org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: ldionne.2 at gmail dot com @ 2015-07-28 5:45 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67041
Bug ID: 67041
Summary: [C++14] Variable template initialized by call to
lambda does not compile
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: ldionne.2 at gmail dot com
Target Milestone: ---
The following code does not compile on GCC trunk:
-------------------------------
template <typename ...Anything>
auto variable_template = [] { return 1; }();
int main() {
variable_template<>;
}
-------------------------------
The error is
---------------------------------
prog.cc: In instantiation of 'auto variable_template<>':
prog.cc:5:5: required from here
prog.cc:2:42: error: use of 'variable_template<>' before deduction of 'auto'
auto variable_template = [] { return 1; }();
^
prog.cc:2:42: error: use of '<lambda()> [with Anything = {}]' before deduction
of 'auto'
---------------------------------
Live example: http://melpon.org/wandbox/permlink/srH8coYkvigwJSkb
Note that Clang compiles this code fine.
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug c++/67041] [C++14] Variable template initialized by call to lambda does not compile 2015-07-28 5:45 [Bug c++/67041] New: [C++14] Variable template initialized by call to lambda does not compile ldionne.2 at gmail dot com @ 2015-07-28 9:43 ` redi at gcc dot gnu.org 2015-08-26 19:02 ` ldionne.2 at gmail dot com ` (3 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: redi at gcc dot gnu.org @ 2015-07-28 9:43 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67041 Jonathan Wakely <redi at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2015-07-28 Ever confirmed|0 |1 ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/67041] [C++14] Variable template initialized by call to lambda does not compile 2015-07-28 5:45 [Bug c++/67041] New: [C++14] Variable template initialized by call to lambda does not compile ldionne.2 at gmail dot com 2015-07-28 9:43 ` [Bug c++/67041] " redi at gcc dot gnu.org @ 2015-08-26 19:02 ` ldionne.2 at gmail dot com 2015-09-08 19:19 ` jason at gcc dot gnu.org ` (2 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: ldionne.2 at gmail dot com @ 2015-08-26 19:02 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67041 --- Comment #1 from Louis Dionne <ldionne.2 at gmail dot com> --- Can be simplified to: template <typename ...Anything> auto variable_template = [] { }; int main() { variable_template<>; } Still fails on GCC trunk. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/67041] [C++14] Variable template initialized by call to lambda does not compile 2015-07-28 5:45 [Bug c++/67041] New: [C++14] Variable template initialized by call to lambda does not compile ldionne.2 at gmail dot com 2015-07-28 9:43 ` [Bug c++/67041] " redi at gcc dot gnu.org 2015-08-26 19:02 ` ldionne.2 at gmail dot com @ 2015-09-08 19:19 ` jason at gcc dot gnu.org 2015-09-08 19:34 ` jason at gcc dot gnu.org 2015-09-08 20:39 ` jason at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: jason at gcc dot gnu.org @ 2015-09-08 19:19 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67041 Jason Merrill <jason at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |norbert.pfeiler+gcc.gnu.org | |/bugzilla at gmail dot com --- Comment #2 from Jason Merrill <jason at gcc dot gnu.org> --- *** Bug 67350 has been marked as a duplicate of this bug. *** ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/67041] [C++14] Variable template initialized by call to lambda does not compile 2015-07-28 5:45 [Bug c++/67041] New: [C++14] Variable template initialized by call to lambda does not compile ldionne.2 at gmail dot com ` (2 preceding siblings ...) 2015-09-08 19:19 ` jason at gcc dot gnu.org @ 2015-09-08 19:34 ` jason at gcc dot gnu.org 2015-09-08 20:39 ` jason at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: jason at gcc dot gnu.org @ 2015-09-08 19:34 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67041 --- Comment #3 from Jason Merrill <jason at gcc dot gnu.org> --- Author: jason Date: Tue Sep 8 19:33:47 2015 New Revision: 227553 URL: https://gcc.gnu.org/viewcvs?rev=227553&root=gcc&view=rev Log: PR c++/67041 * pt.c (tsubst_copy_and_build): Handle variables like functions. Added: trunk/gcc/testsuite/g++.dg/cpp1y/lambda-var-templ1.C Modified: trunk/gcc/cp/ChangeLog trunk/gcc/cp/pt.c ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/67041] [C++14] Variable template initialized by call to lambda does not compile 2015-07-28 5:45 [Bug c++/67041] New: [C++14] Variable template initialized by call to lambda does not compile ldionne.2 at gmail dot com ` (3 preceding siblings ...) 2015-09-08 19:34 ` jason at gcc dot gnu.org @ 2015-09-08 20:39 ` jason at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: jason at gcc dot gnu.org @ 2015-09-08 20:39 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67041 Jason Merrill <jason at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution|--- |FIXED Target Milestone|--- |6.0 --- Comment #4 from Jason Merrill <jason at gcc dot gnu.org> --- Fixed for GCC 6. ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2015-09-08 20:39 UTC | newest] Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2015-07-28 5:45 [Bug c++/67041] New: [C++14] Variable template initialized by call to lambda does not compile ldionne.2 at gmail dot com 2015-07-28 9:43 ` [Bug c++/67041] " redi at gcc dot gnu.org 2015-08-26 19:02 ` ldionne.2 at gmail dot com 2015-09-08 19:19 ` jason at gcc dot gnu.org 2015-09-08 19:34 ` jason at gcc dot gnu.org 2015-09-08 20:39 ` jason at gcc dot gnu.org
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