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-- - Author: Anthony Fernandes Pires
-- - Version: 0.1
-- - Date: 2014/09/10
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-- - varout: the output variable
-- - then_term: the value if the condition at the entrance is true. Can be a constant or a variable.
-- - else_term: the value if the condition at the entrance is false. Can be a constant or a variable.
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next(varout) = (CONDITION_AT_ENTRANCE ? then_term: else_term)