Please, make it an assert or anything that will be disabled in release build.
This thing is not supposed to happen in production.

Bruno


On 20/10/10 09:27, Vaclav Smilauer wrote:
It would have been (a lot) easier to find if there was such a code:
I would suggest to check that norm==0 (sharp float comparison) and throw
an exception with a more detailed explanation --

  if(norm==0) throw runtime_error(("Zero distance between spheres 
#"+lexical_cast<string>(c->getId1())+" and 
#"+lexical_cast<string>(c->getId2())+".").c_str())

Cheers, v.



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Bruno Chareyre
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