[Clp] Stupid question: how to enlarge the precision of number in the log?

[Thomas Schoenemann]

Dear all,

I got a hint from a  developer, which set me on the right path. The correct 
place to modify is Clp/src/ClpMessage.cpp

Here you can modify the line 

     {CLP_SIMPLEX_STATUS, 6, 1, "%d  Obj %.g%? Primal inf %g (%d)%? Dual inf 
%g (%d)%? w.o. free dual inf (%d)"},

to

     {CLP_SIMPLEX_STATUS, 6, 1, "%d  Obj %.12g%? Primal inf %g (%d)%? Dual inf 
%g (%d)%? w.o. free dual inf (%d)"},

(I am using Clp as released in CBC-2.5.0). 

I am not sure if there is a solution that does NOT involve modifying the 
source code. But I think it should not be hard to add this to the interface,

Best regards,
   Thomas



Am Montag, 13. September 2010 11:09:54 schrieb Thomas Schoenemann:
> Dear all,
>
> I have a (probably) very stupid question, but still I was not able to find
> an answer: In Clp, when numbers are printed, apparently always the standard
> settings are used - I see about 6 digits. How do I get output equivalent to
> the commands
>
> std::cerr.precision(12)
>
> or
>
> std::cout.precision(12)
>
> ?
>
> Simply calling these methods before running Clp does not work.
>
> Best regards,
>   Thomas
>
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