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Uninitialised variable at line 523 in include/IECore/LevenbergMarquardt.inl #44

Open GoogleCodeExporter opened 8 years ago

GoogleCodeExporter commented 8 years ago 
This was shown up by gcc 4.4.4. There are two potential fixes, but I don't 
understand the code well enough to choose one right now.

EITHER :

replace lines 613-614 with "par = parl;"...

OR :

T par = T(0);

on line 286, then :

change line 290 from :

 T par = computeLMParameter( m_wa1, m_wa2->writable(), delta );

to :

 computeLMParameter( m_wa1, m_wa2->writable(), delta, par );

change the function definition:

T LevenbergMarquardt<T, ErrorFn, Traits>::computeLMParameter( std::vector<T> 
&x, std::vector<T> &sdiag, T delta )

to :

void LevenbergMarquardt<T, ErrorFn, Traits>::computeLMParameter( std::vector<T> 
&x, std::vector<T> &sdiag, T delta, T &par )

change line 572 from :

return 0;

to:

par = T(0);

and then delete that peskly line 523....

Original issue reported on code.google.com by thehaddo...@gmail.com on 27 Oct 2011 at 11:30