[Coin-lpsolver] assertion "iPivot>=0" failed

[John J Forrest]

Jean-Sebastien,

Looking at the code I am surprised it worked before.  Anyway my recent 
changes broke it.  It was also bad of me not to have put any use of 
setBasisStatus in Osi unit test.

Try again.  If you still have problems send me a driver which shows the 
problem.

John Forrest



Jean-Sebastien Roy <js at jeannot.org> 
Sent by: coin-lpsolver-bounces at list.coin-or.org
12/29/2004 12:13 PM

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[Coin-lpsolver] assertion "iPivot>=0" failed






Hi !

I'm using the Clp setBasisStatus function to suggest a basis to Clp,
and, using the latest version of Clp, I'm getting the following error :

assertion "iPivot>=0" failed: file "ClpSimplex.cpp", line 401

I did not get this error using the previous version I was using (at the 
begining of september), on the exact same LP problems.

There is probably a bug in my use of Clp, and I order to find it, I 
would be very grateful if someone could explain what this assertion 
means (and ideally provide a suggestion on how not to get the error...).

Thank you very much in advance,

Regards,

js

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