[Coin-lpsolver] little bug in CLP

John J Forrest jjforre at us.ibm.com
Tue Dec 14 15:38:32 EST 2004


Edwin,

I have changed code so that ranging will return with a nonzero code (as it 
would for primal/dual infeasible).  I have also added a code==6 to 
secondaryStatus() which means no elements in matrix and this is tested 
before ranging.

John Forrest



"Edwin Straver" <estraver at frontsys.com> 
Sent by: coin-lpsolver-bounces at list.coin-or.org
12/14/2004 02:13 PM

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[Coin-lpsolver] little bug in CLP






When i run an LP with zero constraints (just bounds on the varaibles) and 
call DualRanging, I get a crash.
 
Specifically, the crash occurs on the first line in:
 
ClpSimplexOther::dualRanging
 
Greetings, Edwin
 
------------------------------------------
Edwin Straver
Email: estraver at frontsys.com
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