On Tuesday, 22 April 2014 at 17:22:21 UTC, Ola Fosheim Grøstad
wrote:
On Tuesday, 22 April 2014 at 16:58:23 UTC, Kapps wrote:
iOS now on 64-bit processors doesn't necessarily use a
hashtable
for refcounting. Basically, only 33 bits of the 64-bit pointer
are used to actually refer to an address, then 19 of the
remaining bits are used to store an inline reference count.
I am sure you are right, but how does that work? Do you have a
link?
https://www.mikeash.com/pyblog/friday-qa-2013-09-27-arm64-and-you.html
Ctrl +F "Repurposed isa Pointer"
Details about isa structure:
http://www.sealiesoftware.com/blog/archive/2013/09/24/objc_explain_Non-pointer_isa.html
