[gecode-users] Some error - I just cannot find it (Windows)

[Guido Tack]

Hi,

your sample code does not compile, are you sure it's self contained?  E.g. XGecodeVector2 initialises m_valid which is not defined (and there seem to be other problems).

Cheers,
Guido

-- 
Guido Tack
http://www.csse.monash.edu/~guidot/



On 18/05/2013, at 11:33 AM, Mailing List Email <mailinglistx at gmail.com> wrote:

> Hi all,
> 
> In my project that I'm working on, I seem to get strange errors, but I cannot seem to be able to figure out why, so I figured perhaps you might give some insight into the problem.
> I'm attaching a simplified version (but not a minimal example) of the code to where I have tracked down the problem. I don't want to force you to sift through tons of code. I included the most relevant parts only. I can provide the full source (it isn't that big) upon request, though. That is fine.
> 
> My best guess is that there is some memory corruption - some memory getting freed and is then overwritten somewhere. But it might be something else entirely - like I said, I'm not sure because my results are conflicting.
> I have the tracked the problem down to being the m_rectangle variable. The culprit seems to be the line
> 
> r1 = std::move(m_rectangles.v().back());
> 
> If I remove it, all works fine. I have tried using both a Gecode space allocator and the normal standard allocator - both produce the same thing.
> Because it's memory corruption or something, the bug appears differently depending on how the code is run - never in a single place (unless run under the same parameters).
> 
> Am I doing this right? Am I missing something? I just can't see what. I have been trying to wrap my head around this for a long time now, but I can't seem to find anything.
> I hate to ask you to go through a lot of code, but I'm stuck here, so I'd appreciate a little insight -- any insight.
> 
> I just hope the mailing list accepts attachments. I would hate to have to provide source inline.
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