[gecode-users] problem using IntVarArgs

[Christian Schulte]

Hi Kish,

Let me venture a guess: you did not initialize the arguments of IntVarArgs.
When you create an IntVarArgs object, its fields are uninitialized. So what
you might want do is

IntVarArgs x(n);
for (int i=0; i<n; i++)
   x[i].init(home, ..., ...);

Where ... are smallest and largest possible value.

Is that it?

Cheers
Christian

-----Original Message-----
From: users-bounces at gecode.org [mailto:users-bounces at gecode.org] On Behalf
Of Kish Shen
Sent: Thursday, June 11, 2009 5:59 PM
To: users at gecode.org
Subject: [gecode-users] problem using IntVarArgs

Hi,

I am running into a seg fault with posting simple constraints with a 
IntVarArgs. I am using GeCode 3.0.2.

What I want to do is to set a variable in IntVarArgs to a value. I tird 
the following two ways:

dom(*solver, alldiff[i], i)

and
rel(*solver, alldiff[i], IRT_EQ, i)

where alldiff is a IntVarArgs

Both seem to cause a seg fault.

I haven't used Gecode much, so I assume I am making some basic mistake 
-- can someone please let me know what I am doing wrong?

[For the context of what I am doing, I am trying to implement the 
distinct constraint, which takes a IntVarArgs. However, some of these 
variables may already be set to an integer value -- this is what I am 
trying to do here -- the distinct constraint have not been posted at 
this point]

Thanks in advance for any help!

Kish

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