public FXForward(FxForwardInfo instInfo,
                  FxUnderlying fxUnder,
                  FxForwardEngine engine) 
 {
     this.instInfo_ = instInfo;
     this.under_ = fxUnder;
     //this.pricer_ = pricer;
     this.engine_ = engine;
 }
 public FXForward(FxForwardInfo instInfo,
                  FxUnderlying fxUnder,
                  FxForwardEngine engine)
 {
     this.instInfo_ = instInfo;
     this.under_    = fxUnder;
     //this.pricer_ = pricer;
     this.engine_ = engine;
 }