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is_same

is_same


Purpose
Returns true if two decision variables passed in argument represent the same variable; this function is mainly used by advanced users to specify branching heuristics (see example below).
Synopsis
function is_same(var1:cpvar,var2:cpvar) : boolean
function is_same(var1:cpfloatvar,var2:cpfloatvar) : boolean
Arguments
var1 
the first decision variable
var2 
the second decision variable
Return value
true if var1 and var2 represent the same variable
Example
The following example shows how to test whether two cpvar represent the same variable
if is_same(var1,var2) then
  write("var1 and var2 represent the same variable!")
end-if
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