Initializing help system before first use

# contains

Purpose
Returns true if the value 'val' belongs to the domain of the variable passed in argument
Synopsis
`function contains(x:cpvar,val:integer) : boolean`
`function contains(x:cpfloatvar,val:real) : boolean`
Arguments

x | the decision variable
val | the value

Return value
true if x can be instantiated to val
Example
The following example shows how to test if a value belongs to the domain of a cpvar x

    if contains(x,3) then
      write("x can be instantiated to three!")
    end-if

Related topics
getlb getub getmiddle getsize getval is_fixed getdegree gettarget getrand getnext getprev
Parent Topic Variables

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