[gecode-users] maximze the profit (cost)

[Christian Schulte]

That is a C++ programming error you did, googling this would have revealed
that: the class is abstract, so you forgot to define one of the virtual
member functions required.

 

Maybe you forgot the cost function itself?

 

Christian

 

--

Christian Schulte, www.ict.kth.se/~cschulte

 

From: users-bounces at gecode.org [mailto:users-bounces at gecode.org] On Behalf
Of peter Tomson
Sent: Tuesday, October 1, 2013 07:01 PM
To: users at gecode.org
Subject: [gecode-users] maximze the profit (cost)

 

hi all!

 

i program a model where i have to maximize the profit ( objective function).
As you know in constraint programing some times we need to maximize or
minimize. i used other solvors and i find functions that do that by default
for exemple the Choco solvor.

 

When i read the MPG, i found just Support for cost-based optimization so i
tryed to use it to solve my model ( of course i looked at the exemple
SendMostMoney and i tryed to do the some but here :

 

  virtual Space* copy(bool share) {

    return new exempleMMKP(share,*this);

  } 

i have got an error : object type abstract class "exempleMMKP" unauthorized

 

So what can i do to slve this problem 

 

thank very much

 

PETER 

 

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