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Re: CVS gcc/tree.c: still broken for zero length arrays

To: Craig Newell <craign at ieee dot org>
Subject: Re: CVS gcc/tree.c: still broken for zero length arrays
From: Richard Henderson <rth at redhat dot com>
Date: Sat, 25 Nov 2000 14:02:08 -0800
Cc: gcc-bugs at gcc dot gnu dot org
References: <Pine.LNX.4.30.0011232134280.14702-100000@localhost.localdomain>

On Thu, Nov 23, 2000 at 09:48:29PM -0500, Craig Newell wrote:
>   A simple testcase to show the current crash:
> 
> --- bug.i ------------------
> typedef union {
>         int *a;
>         int b[0];
> } u;

I'll look into it, but also note that I am seriously considering
enforcing C99's rules for flexible array members.  That means that
the field may appear in structures _only_, and then as the last
field, and then when there is at least one other member so that
the structure size is not itself zero.

Other uses don't appear to be well defined.

r~

References:
- CVS gcc/tree.c: still broken for zero length arrays
  - From: Craig Newell

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