Minor issue - zero-length fixed size arrays in variable-sized structs..

[Jarrett Billingsley]

On Thu, Jul 9, 2009 at 2:38 AM, Daniel Keep<daniel.keep.lists at gmail.com> wrote:
>
> You'd have to be mad to use it like that.
>
> struct S
> {
>    int a;
>    private { size_t size; char[0] data; }
>    char[] message() { return data.ptr[0..length]; }
>    size_t length() { return size; }
>
>    S* opCall(size_t size)
>    {
>        return cast(S*)((new ubyte[S.sizeof+size]).ptr);
>    }
> }
>
> void main()
> {
>    auto s = S(5);
>    s.message[] = "hello";
>    writeln(s.message);
>    s.message[] = "world";
>    writeln(s.message);
> }
>

You can't.  The rest of my post explains that T[0].ptr is always null,
for some reason.

Currently I'm doing almost the same thing, though (cast(char*)(this +
1)[0 .. size]).