[gecode-users] Path constraint

[Henrik]

Hi,

I might might as well say that i am a newbie at Gecode. I have been looking into 
creating a path constraint for the TSP example created by Schulte. 
As you probably know it implements a circuit constraint. 
What i have done is change the circuit constraint with a path constraint, and 
added a start and end IntVar. 
I have then altered the "Actual model" so instead of:  

 TSP(const SizeOptions& opt)
    : p(ps[opt.size()]),
      succ(*this, p.size(), 0, p.size()-1),
      total(*this, 0, p.max())

it instead says:

  TSP(const SizeOptions& opt)
    : p(ps[opt.size()]),
      succ(*this, p.size(), 0, p.size()),
      start(*this,0,p.size()),
    	end(*this,0,p.size()),
      total(*this, 0, p.max())

When i run it the program shows part of a route/path and then fails. My question 
is: Is there something which i have done wrong in the code provided?

Thanks in advance,
Henrik.