[OS-tickets] [Optimization Services] #7: OSInstance::calculateHessian fails if getLagrangianHessianSparsityPattern() was not called before

[Optimization Services]

#7: OSInstance::calculateHessian fails if getLagrangianHessianSparsityPattern()
was not called before
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 Reporter:  stefan      |       Owner:  somebody
     Type:  defect      |      Status:  new     
 Priority:  minor       |   Milestone:          
Component:  component1  |     Version:          
 Keywords:              |  
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 Hi,

 if I call {{{OSInstance::calculateHessian(double*, int rowidx, bool
 is_new)}}} without having called
 {{{OSInstance::getLagrangianHessianSparsityPattern()}}} before, then this
 gives me a seg.fault at {{{OSInstance.cpp:3670}}}  (method
 {{{OSInstance::getSecondOrderResults()}}}), because m_vbLagHessNonz was
 not initialized before.

 Thus, calling {{{getLagrangianHessianSparsityPattern()}}} helps, but I do
 not see why this should be required when I want only the hessian of a
 particular row.

 This is OS/trunk rev. 2389.

 Best,
 Stefan

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Ticket URL: <https://projects.coin-or.org/OS/ticket/7>
Optimization Services <http://projects.coin-or.org/OS>
An interface for Web services implementing optimization.