public static Coupon as_coupon(CashFlow cf)
{
Coupon ret = new Coupon(NQuantLibcPINVOKE.as_coupon(CashFlow.getCPtr(cf)), true);
if (NQuantLibcPINVOKE.SWIGPendingException.Pending)
{
throw NQuantLibcPINVOKE.SWIGPendingException.Retrieve();
}
return(ret);
}