winsamp.d and -O

[Dmitry Olshansky]

On 15.06.2011 2:03, Andrej Mitrovic wrote:
> On 6/15/11, Andrej Mitrovic<andrej.mitrovich at gmail.com>  wrote:
>> LOL how the hell did that get in there? I remember I was updating
>> these samples some time ago.. maybe it was my fault. I am completely
>> sorry if this was my fault.
>>
> Oh wait, it's not my fault! It's a demonstration, see:
>                  case IDC_BTNDONTCLICK:
>
>                      if (HIWORD(wParam) == BN_CLICKED)
>                      {
>                          MessageBoxA(hWnd, "You've been warned...",
> "Prepare to GP fault",
>                                      MB_OK | MB_ICONEXCLAMATION);
>                          *(cast(int*) null) = 666;
>                      }
>
> The difference is, DMD can catch this at compile time with
> optimizations turned on. I don't know why. Anyway, the example is
> supposed to show what happens on a wrong pointer dereference.

I think generic 'windows sample' is _not_ about null pointer dereference 
(though arguably one can consider Windows as a whole an example on GP 
fault and null pointer dereference in particular).

-- 
Dmitry Olshansky