[squeak-dev] Re: Using #= for integer comparison instead of #==

Bert Freudenberg bert at freudenbergs.de
Fri Nov 26 16:59:28 UTC 2010


On 26.11.2010, at 17:43, Andres Valloud wrote:

>> You *must* use an end marker, i.e.,
>> 
>> 	last := Object new. "end marker"
>> 	obj := self someObject.
>> 	[last == obj] whileFalse:[
>> 		count := count + 1.
>> 		obj := obj nextObject.
>> 	].
>> 
>> This will work because it counts between the beginning of memory and the
>> (arbitrary) end marker. Anything else basically should not be relied on
>> to work, jit or no.
> 
> What happens if a process with higher priority interrupts the iteration and creates more objects?

New objects would come after the end marker in memory.

- Bert -





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