On Saturday, 7 May 2016 at 12:32:53 UTC, Marco Leise wrote:
Am Sat, 07 May 2016 12:02:07 +0000
schrieb Nicholas Wilson <[email protected]>:
On Saturday, 7 May 2016 at 09:01:11 UTC, Ali Çehreli wrote:
> On 05/06/2016 11:08 PM, Nicholas Wilson wrote:
>> In Dicebot's DConf talk
>
> That was deadalnix. :)
>
> Ali
Touché.
Too many d's for the day. :) I agree with Benjamin, that we
can't rely on the 16-bits being reserved forever.
I have a question about the lower 3 bits OTOH. The minimal GC
allocation size is >= 8 bytes, right? I.e. if we set the lower
3 bits to 0b111, and the pointer points to a 4 byte structure,
it will still be recognized as an internal pointer due to the
overallocation.
You could have allocated an array, so that's a problem, you can
only use 2 bits. taggedPointer will check for this at compile
time.
But, yes, LSB are safe to use is you wrap it properly because it
will be seen as an interior pointer.
