Kim Lai wrote: > hi, your reply is a great help for me. thanks. > I use lib(eplex) to reformulate my problem as follow. and it really got > a solution. > But after I port the following code to C++. I'm getting trouble with > ""How to extract the variables result"". > A result like this > "A2{0.0 .. 1.7976931348623157e+308 @ 1.1999999992549422}" > I'd like to extract A2=1.199 = 1.2 > But it's not even a string... > in C++: I usually use "EC_word(Vars[i]).is_double(&d) == EC_succeed" > to get a double or long int .....And this didn't work.. > ------------eclipse code------------------------ Your specific problem is that when a problem is solved by eplex, the problem variables are not instantiated. This allows you to modify the problem and resolve it. eplex_var_get/3 allows you to extract the solution value from the variable, e.g. for the variable A2 above, .... eplex_var_get(A2, solution, A2Sol), will instantiate A2Sol to the solution value of A2 So you should exract the solution values, and pass these to C++. A more general point: I am not quite sure what you mean exactly by `porting to C++' - you seem to want to pass solution values from a ECLiPSe program to C++. This is probably the best way to use ECLiPSe as a constraint solver when you are using ECLiPSe with other languages -- but I would not call this `porting', but interfacing. Cheers, KishReceived on Thu Apr 24 2008 - 16:27:27 CEST
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