Comment 9 for bug 803774

OK, I had to do a clean scons but now it works fine so I confirm the fix was appropriate. Thanks, Anton.
Chiara

On 15 Jun 2012, at 10:37, Anton Gladky wrote:

> 2012/6/15 Chiara Modenese <email address hidden>:
>> OK, I see, thank you very much. Is the body deleted then? The length of
>> the container is still the same when I delete something, even after the
>> fix.
>
> That is right. By this way we are trying to escape memory leaks, using
> for newly created bodies the "places" of previously deleted ones.
>
>> Before sending you the script, do you think it makes any difference
>> if I rerun the test with the new compilation? It will take a bit of time
>> for me if I have to rerun it.
>
> Yes.
> It would be better if you minimize the script as much as possible.
> The best is just 1-2 bodies.
>
> Anton
>
> --
> You received this bug notification because you are a member of Yade
> developers, which is the registrant for Yade.
> https://bugs.launchpad.net/bugs/803774
>
> Title:
> Saving, loading simulation with erased bodies crash.
>
> Status in Yet Another Dynamic Engine:
> Fix Released
>
> Bug description:
> Here is the bug :
>
> - launch yade (for example without any script)
> - add a sphere : O.bodies.append(utils.sphere((0.2,0.2,0.2),0.006))
> - delete it : O.bodies.erase(0)
> - save yade's universe : O.save("./test")
> - quit yade
> - launch yade
> - load the file : O.load("./test")
> ->segmentation fault
>
> I think it's because when you erase something the size of O.bodies (etc...) doesn't change and now contains an empty value. (the c++ array may not be dynamic ?)
> So when the O.load() function is called, yade try to load a non-existant body ?
>
> Maybe this can be fixed by changing the load() method ?
>
> I joined the debug output.
>
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>
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