[Bug c++/70932] New: flexible array member with non-trivial destructor

[jens.maurer at gmx dot net]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70932

            Bug ID: 70932
           Summary: flexible array member with non-trivial destructor
           Product: gcc
           Version: 6.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: jens.maurer at gmx dot net
  Target Milestone: ---

Testcase:

struct A {
  ~A();
};

struct S {
  S() : i(0) { }
  int i;
  A a[];
};


$ g++ -v flex.cc
gcc version 6.1.0 (GCC) 

flex.cc: In constructor ‘S::S()’:
flex.cc:6:12: error: unknown array size in delete


This used to work with gcc 5.x.  (I understand the destructor of A is not
called for a[] here, because the number of elements is unknown.)