Mac Apps That Use Garbage Collection Must Move to ARC

[deadalnix via Digitalmars-d]

On Thursday, 26 February 2015 at 19:58:56 UTC, Walter Bright 
wrote:
> On 2/25/2015 11:01 PM, Benjamin Thaut wrote:
>> What you are describing is a compacting GC and not a 
>> generational GC. Please
>> just describe in words how you would do a generational GC 
>> without write
>> barriers. Because just as deadalnix wrote, the problem is 
>> tracking pointers
>> within the old generation that point to the new generation.
>
> It was a generational gc, I described earlier how it used page 
> faults instead of write barriers. I eventually removed the page 
> fault system because it was faster without it.

Page fault ARE write barrier.