how to value selection in tree search?

hi there:
I am using library fd to implement a tree search
method. I like to control the value selection for
variables during the search process. I have a variable
whose domain is [1, 2, 3, 4, 5], and I associate a
weight to every value. I want the search process to
try value with higher weight first.

I tried to sort the value domain based on the weight
of values like
V :: [2, 1, 3, 5, 4],
indomain(V) 

But indomain always pick the 1 first. 

Can anyone give me a hint about value selection
control please? 

Thanks

Chuang


		
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