opt-params.cfa:12:1 error: Initializer on type declaration i: int 
  with initializer  maybe constructed? 1

opt-params.cfa:13:1 error: Initializer on type declaration int 
  with initializer  maybe constructed? 1

opt-params.cfa:14:1 error: Initializer on type declaration int 
  with initializer  maybe constructed? 1

opt-params.cfa:15:1 error: Initializer on type declaration int 
  with initializer  maybe constructed? 1