Re: Make Size Returned from HeapSize Always Match The Requested Size

[Alexandre Julliard]

Robert Shearman  writes:
> --- dlls/ntdll/heap.c	25 Jun 2005 18:00:57 -0000	1.41
> +++ dlls/ntdll/heap.c	8 Jul 2005 16:22:47 -0000
> @@ -52,6 +52,9 @@ typedef struct tagARENA_INUSE
>  {
>      DWORD  size;                    /* Block size; must be the first field */
>      DWORD  magic;                   /* Magic number */
> - BYTE   unused_bytes;            /* Number of bytes in the block not used by user data */
> - BYTE   reserved0[3];            /* Not used. Set to 0 */
> - DWORD  reserved1;               /* Not used. Set to 0 */
>
> } ARENA_INUSE;

I don't think we want to double the arena size for that. You can just
steal a few bits from the magic number.