Re: [boost] [Container] Priority Deque - Refinement

Subject: Re: [boost] [Container] Priority Deque - Refinement
From: tim (tim_at_[hidden])
Date: 2013-11-27 04:33:41

>> yes, the handling of the stability count is a bit fragile, though 64bit
>> integers are probably enough to prevent overflows in most applications.
>> a simple way to prevent the overflow could also be to simply subtract
>> the minimum value of all stability counts, which could be done in O(n)
>> by traversing the heap twice.
>>
> 
> That's unreliable, because there's no guarantee
> that any particular counter is ever removed.
> It's quite possible still to have 0 in the
> queue when you reach 2^64.

in theory, yes ... though i doubt this is an issue in the real world ...
especially one can do quite a lot of work before a 64bit counter
overflows and if this really turns out to be a problem ... just use a
larger counter ;)