Hi Gustavo,
> The current codebase makes use of the zero-length array language extension
> to the C90 standard, but the preferred mechanism to declare variable-length
> types such as these ones is a flexible array member[1][2], introduced in C99:
>
> struct foo {
> int stuff;
> struct boo array[];
> };
>
> By making use of the mechanism above, we will get a compiler warning in
> case the flexible array does not occur last in the structure, which will help us
> prevent some kind of undefined behavior bugs from being inadvertently
> introduced[3] to the codebase from now on.
>
> Also, notice that, dynamic memory allocations won't be affected by this
> change:
>
> "Flexible array members have incomplete type, and so the sizeof operator
> may not be applied. As a quirk of the original implementation of zero-length
> arrays, sizeof evaluates to zero."[1]
Thanks for this path.
Acked-by: Ganapathi Bhat <ganapathi.bhat@xxxxxxx>
