On Sat, Jun 29, 2013 at 9:21 PM, Ben Wolfson <wolf...@gmail.com> wrote:
> On Sat, Jun 29, 2013 at 6:06 PM, Cedric Greevey <cgree...@gmail.com>wrote:
>
>> Who said swap *was* CAS, rather than was implemented *in terms of* CAS?
>> In any event, your claim that "no comparison is done unless it's done in
>> the supplied function" is just plain wrong. Comparison *is* done, outside
>> that function, to make sure the atom wasn't changed by another thread while
>> the function was executing.
>>
>
> "swap! is for "CAS""
>

Who claimed that, again? I said  "swap! is for when the new value depends,
in some way, on the previous value", which is not the same thing, and then
mentioned twice that it's implemented in terms of CAS.

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