[Osi-tickets] [COIN-OR Open Solver Interface] #62: OsiCpx getObjCoefficients does not work if column added

[COIN-OR Open Solver Interface]

#62: OsiCpx getObjCoefficients does not work if column added
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  Reporter:  mgalati  |       Owner:  mjs 
      Type:  defect   |      Status:  new 
  Priority:  major    |   Milestone:      
 Component:  OsiCpx   |     Version:  0.96
Resolution:           |    Keywords:      
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Comment (by stefan):

 Hi,

 I cannot reproduce this problem.
 Adding a column via addCol or addCols frees the column caches, which
 includes obj_, so it should been set to NULL.
 If you add columns bypassing !OsiCpx, then you have to do an appropriate
 {{{freeCachedData()}}} call by yourself.

 I also tried
 {{{
   solver->getColCoefficients(); // to be sure that obj_ is created
   solver->addCol(CoinPackedVector(), -1, 1, 42);
   double shouldbe42 =
 solver->getColCoefficients()[solver->getNumCols()-1];
 }}}
 and {{{shouldbe42}}} was indeed 42.

 Best,
 Stefan

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Ticket URL: <https://projects.coin-or.org/Osi/ticket/62#comment:1>
COIN-OR Open Solver Interface <http://projects.coin-or.org/Osi>
An API for a variety of LP and MIP solvers (and more).