[Bug c++/87148] [6/7/8/9 Regression] backward compatibility issue to take char [] as incomplete type

msebor at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Thu Aug 30 17:14:00 GMT 2018


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87148

--- Comment #4 from Martin Sebor <msebor at gcc dot gnu.org> ---
The decision to reject the code in comment #0 was deliberate (as Jonathan
explained in comment #2).  We wanted (and still do) G++ to enforce rules that
are at least as strict as C's (and GCC's in C mode).

The other test case:

  struct Tst {
    int i;
    char t[];
  };

  Tst t = Tst();

arguably should be accepted because the equivalent

  Tst t { };

is accepted.


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