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* [Bug c++/95016] New: [DR 2082] Referring to parameters in unevaluated operands of default arguments
@ 2020-05-08 20:16 mpolacek at gcc dot gnu.org
  2020-05-08 20:25 ` [Bug c++/95016] " mpolacek at gcc dot gnu.org
                   ` (3 more replies)
  0 siblings, 4 replies; 5+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2020-05-08 20:16 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95016

            Bug ID: 95016
           Summary: [DR 2082] Referring to parameters in unevaluated
                    operands of default arguments
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: mpolacek at gcc dot gnu.org
  Target Milestone: ---

We give two errors here:

void
f ()
{
  int i;
  extern void g(int x = i);         // error
  extern void h(int x = sizeof(i)); // OK
}

but [dcl.fct.default]/7 now says "A local variable cannot be odr-used
([basic.def.odr]) in a default argument."

This is https://wg21.link/cwg2082

^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2021-11-06  3:16 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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2020-05-08 20:16 [Bug c++/95016] New: [DR 2082] Referring to parameters in unevaluated operands of default arguments mpolacek at gcc dot gnu.org
2020-05-08 20:25 ` [Bug c++/95016] " mpolacek at gcc dot gnu.org
2021-08-03 21:24 ` mpolacek at gcc dot gnu.org
2021-08-17  9:54 ` pinskia at gcc dot gnu.org
2021-11-06  3:16 ` mpolacek at gcc dot gnu.org

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