C++ (Cpp) optional::handle示例

bool Relationship::setRelatedModelObject(boost::optional<ModelObject> relatedModelObject)
{
  assertSingular(true);

  bool result = false;  
  if (isSettable()) { 

    // handle ComponentData set
    if (relatedModelObject && relatedModelObject->optionalCast<ComponentData>()) {
      if (relatedModelObject->model() != m_object.model()) {
        if (relatedModelObject->model().optionalCast<Component>()) {
          return setRelatedModelObject(relatedModelObject->model().cast<Component>());
        }
      }
    }

    QVariant value = QVariant::fromValue(relatedModelObject);
    m_object.getImpl<detail::ModelObject_Impl>()->setProperty(m_name.c_str(), value);
    
    // check set
    boost::optional<ModelObject> newValue = this->relatedModelObject();
    if (relatedModelObject){
      if (newValue){
        result = (relatedModelObject->handle() == newValue->handle());
      }
    }else{
      result = !newValue;
    }
  }

 return result;
}

示例#2

显示文件

文件： BoilerHotWater.cpp 项目： Rahjou/OpenStudio

 bool BoilerHotWater_Impl::setNormalizedBoilerEfficiencyCurve(
       const boost::optional<Curve>& normalizedBoilerEfficiencyCurve)
 {
   if (normalizedBoilerEfficiencyCurve) {
     return setPointer(OS_Boiler_HotWaterFields::NormalizedBoilerEfficiencyCurveName,normalizedBoilerEfficiencyCurve->handle());
   }
   else {
     return setString(OS_Boiler_HotWaterFields::NormalizedBoilerEfficiencyCurveName,"");
   }
   return false;
 }