[Coin-lpsolver] Assertion failed in ClpSimplex

[John J Forrest]

Thanks to JP for pointing out problem.  NDEBUG is undeffed in 
OsiClpSolverInterfaceTest.cpp but exceptions are not thrown (and less 
checking is done) if NDEBUG is defined for OsiClpSolverInterface.cpp.  I 
think I could cure for VC++ by modifying OsiClpSolverInterfaceTest.cpp but 
it could break with right combination of options on gcc.

I always use -g on OsiClpSolverInterface.cpp so never ran into problem.

I have modified OsiClpSolverInterface.cpp so should work.  I can't see 
there being any significant performance hit.

John Forrest



"E Bouillet" <ebouillet at hotmail.com> 
Sent by: coin-lpsolver-bounces at list.coin-or.org
08/22/2005 02:16 AM

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Re: [Coin-lpsolver] Assertion failed in ClpSimplex







Thank you for your prompt reply,

I checked out the last version from CVS today, and compiled it using VC++ 
with the same compilation options that I used for an earlier version (/Ox 
/EHsc /GR) downloaded about 2 weeks ago.
All the Clp/clp.exe and Cbc/cbc.exe tests are ok, but somehow now 
Osi/unitTest.exe aborts at the begining of OsiClpSolverInterfaceUnitTest, 
when invoking readMps. If I surround the readMps in a try/catch block and 
catch the std::exception it read the file with 0 errors, and abort at the 
next readMps. Printing the caught exception doesn't shed a light about its 

cause. Unfortunately I don't have the debugger here, and that's as far as 
I 
could go for now.

I guess using VC++ doesn't make things any easier and it's possible that I 

am missing some options when building the libraries, even though it used 
to 
work in the previous version.
Any idea what the problem could be?

Thanks!


>From: John J Forrest <jjforre at us.ibm.com>
>
>I took out assert a few days ago.
>


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