[Cbc] Increase number of digits in solution file

[John Forrest]

Nicolas,

I only use Linux, so maybe someone else can help.

I think that for Visual Studio you have to modify 
Clp/src/config_default.h by hand.  If so then I would try adding #define 
CLP_OUTPUT_FORMAT ="%20.12g".  I am not sure if you need the "".  I hope 
someone will correct me if I am wrong.

John Forrest
On 21/09/17 14:24, nicolas.derhy at engie.com wrote:
>
> Hi John,
>
> Can you explain me how to do this ?
>
> I have downloaded source code and I compiled it successfully (using 
> Visual Studio 2010).
>
> I found some CXXDEFS in the configure file but I do not know what to 
> modify.
>
> Nicolas
>
> *De :*Cbc [mailto:cbc-bounces at coin-or.org] *De la part de* John Forrest
> *Envoyé :* mardi 19 septembre 2017 18:57
> *À :* cbc at list.coin-or.org
> *Objet :* Re: [Cbc] Increase number of digits in solution file
>
> Nicolas,
>
> When you configure cbc add to CXXDEFS
>
> -DCLP_OUTPUT_FORMAT ="%20.12g"
>
> or whatever you want.
>
> John Forrest
>
> On 19/09/17 16:02, nicolas.derhy at engie.com 
> <mailto:nicolas.derhy at engie.com> wrote:
>
>     Hi everybody,
>
>     I often use cbc exe. It works very well and each time I use it, I
>     add to the command line “-solution mySolution.txt” in order to
>     recuperate the optimal solution.
>
>     My problem is that the values stored in the solution file lacked
>     sometimes of precision when I need a lot of digits.
>
>     For example, I recently obtained 1.5596969e+008 whereas I was
>     hoping for  155969687.
>
>     I tried several options like –output but I did not find any option
>     that will fit my expectations.
>
>     Is there a way to increase the number of digits in solution file ?
>
>     Nicolas
>
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