public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
* [Bug c++/66476] New: Erroneous initializer_list lifetime extension from temporary initializer_list
@ 2015-06-09 16:49 ed at catmur dot co.uk
  2015-06-09 16:53 ` [Bug c++/66476] " redi at gcc dot gnu.org
  0 siblings, 1 reply; 2+ messages in thread
From: ed at catmur dot co.uk @ 2015-06-09 16:49 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66476

            Bug ID: 66476
           Summary: Erroneous initializer_list lifetime extension from
                    temporary initializer_list
           Product: gcc
           Version: 5.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ed at catmur dot co.uk
  Target Milestone: ---

#include <stdio.h>
#include <initializer_list>
struct S { S(int) { puts("S(int)"); } ~S() { puts("~S()"); } };
int main() {
  std::initializer_list<S> ss({42});  // note extra parentheses
  puts("main");
}

Expected output (clang 3.7, MSVC 18.00.21005.1):
S(int)
~S()
main

Observed output (gcc 5.1.0):
S(int)
main
~S()

The same behaviour is observed when the temporary initializer_list is made
explicit:
  std::initializer_list<S> ss = std::initializer_list<S>{42};


Again, gcc lifetime-extends the backing array; MSVC and clang do not.


^ permalink raw reply	[flat|nested] 2+ messages in thread
* [Bug c++/66476] Erroneous initializer_list lifetime extension from temporary initializer_list
  2015-06-09 16:49 [Bug c++/66476] New: Erroneous initializer_list lifetime extension from temporary initializer_list ed at catmur dot co.uk
@ 2015-06-09 16:53 ` redi at gcc dot gnu.org
  0 siblings, 0 replies; 2+ messages in thread
From: redi at gcc dot gnu.org @ 2015-06-09 16:53 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66476

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2015-06-09
     Ever confirmed|0                           |1


^ permalink raw reply	[flat|nested] 2+ messages in thread
end of thread, other threads:[~2015-06-09 16:53 UTC | newest]

Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2015-06-09 16:49 [Bug c++/66476] New: Erroneous initializer_list lifetime extension from temporary initializer_list ed at catmur dot co.uk
2015-06-09 16:53 ` [Bug c++/66476] " redi 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).