Re: [AD] PATCH: updated mprotect patch for allegro-4.2.1 which also work on Linux

[Στέφανος Αποστολόπουλος <StApostol@xxxxxxxxxx>]

On Sun, 12 Mar 2006 11:25:49 +0200, Hans de Goede <j.w.r.degoede@xxxxxxxxxx>  
wrote:

> Chris wrote:
> > On Sunday 12 March 2006 01:08, Hans de Goede wrote:
> > > +      char *p = (char *)((unsigned long)_scratch_mem &  
> > > ~(PAGE_SIZE-1ul));
> > C99 and Allegro define uintptr_t for casting pointers to int types.  
> > Would probably be better if you used that instead.
>
> Makes no difference this always hold: sizeof(long) == sizeof(void *)
>
> Regards,
>
> Hans

No, this does not hold for 64 bit windows, where sizeof(void *) = 8 and  
sizeof(long) = 4 (the 64 bit datatype is long long, and not long as in 64  
bit linux). The portable way would be using uintptr_t as suggested.