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* [Bug c++/52202] New: [C++11][DR 1376] Should not extend lifetime of temporary wrapped in static_cast to reference type
@ 2012-02-10 21:29 jason at gcc dot gnu.org
2021-04-06 7:07 ` [Bug c++/52202] " jens.maurer at gmx dot net
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: jason at gcc dot gnu.org @ 2012-02-10 21:29 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52202
Bug #: 52202
Summary: [C++11][DR 1376] Should not extend lifetime of
temporary wrapped in static_cast to reference type
Classification: Unclassified
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: jason@gcc.gnu.org
// Core 1376
// { dg-options -std=c++0x }
extern "C" void abort();
bool x;
struct T { ~T() { if (x) abort (); } };
int main()
{
T&& r = static_cast<T&&>(T());
x = true;
}
^ permalink raw reply [flat|nested] 5+ messages in thread* [Bug c++/52202] [C++11][DR 1376] Should not extend lifetime of temporary wrapped in static_cast to reference type 2012-02-10 21:29 [Bug c++/52202] New: [C++11][DR 1376] Should not extend lifetime of temporary wrapped in static_cast to reference type jason at gcc dot gnu.org @ 2021-04-06 7:07 ` jens.maurer at gmx dot net 2021-04-07 2:12 ` mpolacek at gcc dot gnu.org ` (2 subsequent siblings) 3 siblings, 0 replies; 5+ messages in thread From: jens.maurer at gmx dot net @ 2021-04-06 7:07 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52202 --- Comment #5 from Jens Maurer <jens.maurer at gmx dot net> --- Core issue 1299 resolved via http://wg21.link/p0727 does in fact lifetime-extend the temporary in the example. This bug report should therefore be closed without action. (If a test case is missing that lifetime-extension does happen, the example code can have its "abort" condition reversed to suit that purpose.) ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c++/52202] [C++11][DR 1376] Should not extend lifetime of temporary wrapped in static_cast to reference type 2012-02-10 21:29 [Bug c++/52202] New: [C++11][DR 1376] Should not extend lifetime of temporary wrapped in static_cast to reference type jason at gcc dot gnu.org 2021-04-06 7:07 ` [Bug c++/52202] " jens.maurer at gmx dot net @ 2021-04-07 2:12 ` mpolacek at gcc dot gnu.org 2021-04-07 2:19 ` cvs-commit at gcc dot gnu.org 2021-04-07 2:20 ` mpolacek at gcc dot gnu.org 3 siblings, 0 replies; 5+ messages in thread From: mpolacek at gcc dot gnu.org @ 2021-04-07 2:12 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52202 Marek Polacek <mpolacek at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |mpolacek at gcc dot gnu.org Assignee|unassigned at gcc dot gnu.org |mpolacek at gcc dot gnu.org Status|NEW |ASSIGNED --- Comment #6 from Marek Polacek <mpolacek at gcc dot gnu.org> --- I'll add the test. ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c++/52202] [C++11][DR 1376] Should not extend lifetime of temporary wrapped in static_cast to reference type 2012-02-10 21:29 [Bug c++/52202] New: [C++11][DR 1376] Should not extend lifetime of temporary wrapped in static_cast to reference type jason at gcc dot gnu.org 2021-04-06 7:07 ` [Bug c++/52202] " jens.maurer at gmx dot net 2021-04-07 2:12 ` mpolacek at gcc dot gnu.org @ 2021-04-07 2:19 ` cvs-commit at gcc dot gnu.org 2021-04-07 2:20 ` mpolacek at gcc dot gnu.org 3 siblings, 0 replies; 5+ messages in thread From: cvs-commit at gcc dot gnu.org @ 2021-04-07 2:19 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52202 --- Comment #7 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:a7698c0e1ecad65b1ab651acc82b34e12c7efd35 commit r11-8022-ga7698c0e1ecad65b1ab651acc82b34e12c7efd35 Author: Marek Polacek <polacek@redhat.com> Date: Tue Apr 6 22:17:33 2021 -0400 c++: Add test for Core issue 1376 [PR52202] As Jens says in the PR, we handle this correctly. gcc/testsuite/ChangeLog: PR c++/52202 * g++.dg/cpp0x/rv-life.C: New test. ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c++/52202] [C++11][DR 1376] Should not extend lifetime of temporary wrapped in static_cast to reference type 2012-02-10 21:29 [Bug c++/52202] New: [C++11][DR 1376] Should not extend lifetime of temporary wrapped in static_cast to reference type jason at gcc dot gnu.org ` (2 preceding siblings ...) 2021-04-07 2:19 ` cvs-commit at gcc dot gnu.org @ 2021-04-07 2:20 ` mpolacek at gcc dot gnu.org 3 siblings, 0 replies; 5+ messages in thread From: mpolacek at gcc dot gnu.org @ 2021-04-07 2:20 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52202 Marek Polacek <mpolacek at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution|--- |FIXED --- Comment #8 from Marek Polacek <mpolacek at gcc dot gnu.org> --- Done. ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2021-04-07 2:20 UTC | newest] Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2012-02-10 21:29 [Bug c++/52202] New: [C++11][DR 1376] Should not extend lifetime of temporary wrapped in static_cast to reference type jason at gcc dot gnu.org 2021-04-06 7:07 ` [Bug c++/52202] " jens.maurer at gmx dot net 2021-04-07 2:12 ` mpolacek at gcc dot gnu.org 2021-04-07 2:19 ` cvs-commit at gcc dot gnu.org 2021-04-07 2:20 ` mpolacek at gcc dot gnu.org
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