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* [Bug c++/48324] New: [C++0x] constexpr evaluation should respect lifetime rules
@ 2011-03-29 3:15 jason at gcc dot gnu.org
2011-05-23 18:33 ` [Bug c++/48324] " jason at gcc dot gnu.org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: jason at gcc dot gnu.org @ 2011-03-29 3:15 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48324
Summary: [C++0x] constexpr evaluation should respect lifetime
rules
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Keywords: accepts-invalid
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: jason@gcc.gnu.org
// { dg-options -std=c++0x }
struct S {
const int val;
constexpr S(int i) : val(i) { }
};
constexpr const int& to_ref(int i) {
return S(i).val;
}
constexpr int ary[to_ref(98)] = { }; // { dg-error "use of dead temporary" }
int main() { }
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug c++/48324] [C++0x] constexpr evaluation should respect lifetime rules 2011-03-29 3:15 [Bug c++/48324] New: [C++0x] constexpr evaluation should respect lifetime rules jason at gcc dot gnu.org @ 2011-05-23 18:33 ` jason at gcc dot gnu.org 2015-03-20 16:58 ` paolo.carlini at oracle dot com ` (3 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: jason at gcc dot gnu.org @ 2011-05-23 18:33 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48324 Jason Merrill <jason at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2011.05.23 17:53:51 Ever Confirmed|0 |1 ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/48324] [C++0x] constexpr evaluation should respect lifetime rules 2011-03-29 3:15 [Bug c++/48324] New: [C++0x] constexpr evaluation should respect lifetime rules jason at gcc dot gnu.org 2011-05-23 18:33 ` [Bug c++/48324] " jason at gcc dot gnu.org @ 2015-03-20 16:58 ` paolo.carlini at oracle dot com 2015-03-20 17:44 ` jason at gcc dot gnu.org ` (2 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: paolo.carlini at oracle dot com @ 2015-03-20 16:58 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=48324 Paolo Carlini <paolo.carlini at oracle dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |paolo.carlini at oracle dot com --- Comment #1 from Paolo Carlini <paolo.carlini at oracle dot com> --- I suppose we can close this as fixed: we warn about returning a reference to a temporary at line 9 and then we error out at line 12 about the size not being an integral constant expression. Likewise clang. Jason, shall I add the testcase and close the bug? ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/48324] [C++0x] constexpr evaluation should respect lifetime rules 2011-03-29 3:15 [Bug c++/48324] New: [C++0x] constexpr evaluation should respect lifetime rules jason at gcc dot gnu.org 2011-05-23 18:33 ` [Bug c++/48324] " jason at gcc dot gnu.org 2015-03-20 16:58 ` paolo.carlini at oracle dot com @ 2015-03-20 17:44 ` jason at gcc dot gnu.org 2015-03-20 17:57 ` paolo at gcc dot gnu.org 2015-03-20 17:59 ` paolo.carlini at oracle dot com 4 siblings, 0 replies; 6+ messages in thread From: jason at gcc dot gnu.org @ 2015-03-20 17:44 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=48324 --- Comment #2 from Jason Merrill <jason at gcc dot gnu.org> --- Please. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/48324] [C++0x] constexpr evaluation should respect lifetime rules 2011-03-29 3:15 [Bug c++/48324] New: [C++0x] constexpr evaluation should respect lifetime rules jason at gcc dot gnu.org ` (2 preceding siblings ...) 2015-03-20 17:44 ` jason at gcc dot gnu.org @ 2015-03-20 17:57 ` paolo at gcc dot gnu.org 2015-03-20 17:59 ` paolo.carlini at oracle dot com 4 siblings, 0 replies; 6+ messages in thread From: paolo at gcc dot gnu.org @ 2015-03-20 17:57 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=48324 --- Comment #3 from paolo at gcc dot gnu.org <paolo at gcc dot gnu.org> --- Author: paolo Date: Fri Mar 20 17:26:32 2015 New Revision: 221539 URL: https://gcc.gnu.org/viewcvs?rev=221539&root=gcc&view=rev Log: 2015-03-20 Paolo Carlini <paolo.carlini@oracle.com> PR c++/48324 * g++.dg/cpp0x/constexpr-48324.C: New. Added: trunk/gcc/testsuite/g++.dg/cpp0x/constexpr-48324.C Modified: trunk/gcc/testsuite/ChangeLog ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/48324] [C++0x] constexpr evaluation should respect lifetime rules 2011-03-29 3:15 [Bug c++/48324] New: [C++0x] constexpr evaluation should respect lifetime rules jason at gcc dot gnu.org ` (3 preceding siblings ...) 2015-03-20 17:57 ` paolo at gcc dot gnu.org @ 2015-03-20 17:59 ` paolo.carlini at oracle dot com 4 siblings, 0 replies; 6+ messages in thread From: paolo.carlini at oracle dot com @ 2015-03-20 17:59 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=48324 Paolo Carlini <paolo.carlini at oracle dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |FIXED Target Milestone|--- |5.0 --- Comment #4 from Paolo Carlini <paolo.carlini at oracle dot com> --- Done. ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2015-03-20 17:28 UTC | newest] Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2011-03-29 3:15 [Bug c++/48324] New: [C++0x] constexpr evaluation should respect lifetime rules jason at gcc dot gnu.org 2011-05-23 18:33 ` [Bug c++/48324] " jason at gcc dot gnu.org 2015-03-20 16:58 ` paolo.carlini at oracle dot com 2015-03-20 17:44 ` jason at gcc dot gnu.org 2015-03-20 17:57 ` paolo at gcc dot gnu.org 2015-03-20 17:59 ` paolo.carlini at oracle dot com
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