Name (required):

  Expression ^{(Optional mood/title along with your name) Examples: (happy, sad, The Joyful, etc.) help)}

  E-mail address (optional):

* Type your message here:
>IN DERIVED CLASS DECLARATION: > >class Vehicle_Class_Name:public baseClass >{ >private: >… >public: >… >void * operator new(size_t s); >void operator delete(void * mem); >… >} > >IN DERIVED CLASS IMPLEMENTATION > >void * Vehicle_Class_Name::operator new(size_t s) >{ > cout << "Vehicle_Class overloaded new called\n"; > int id = SC::getLastID(); // assign a new index to >the new object > SC::vpVehicles.push_back(::new >Vehicle_Class_Name()); > int sz = SC::vpVehicles.size(); > SC::vpVehicles[sz-1]->setID(id); > SC::incrLastID(); > SC::setNew(); > return SC::vpVehicles[sz-1]; >} > > >void Vehicle_Class_Name::operator delete(void * mem) >{ > cout << " Vehicle_Class overloaded delete called \n"; > > vector<baseClass*>::iterator first = >SC::vpVehicles.begin(), last = SC::vpVehicles.end(), >it; > > it = find(first, last, (baseClass*)mem); > if(it != last) > { > ::delete mem; > *it = NULL; // set mem = NULL > SC::setDelete(); > } > else > cerr <<"Nothing can be deleted\n"; >} > > > >Note: >1) The derived class must include SC.h, which is from >Simulation Controller. Some other header files are >also necessary. See the following example. > >2) The overloaded operators, “new” and “delete” must >be declared and implemented in the derived class. > >3) Vehicle_Class_Name can be AircraftCarrier, >Aircraft, Destroyer, Cruiser, Battleship, Submarine, >and various Weapon class names > >4) Object can be created in the following way, eg., in >AircraftCarrier class, when necessary: > >Vector v1(1, 2, 3), v2(2, 3, 4); >flg = ‘R’ or ‘B’; >Weapon *pw = new Weapon(flg, v1, v2); >delete pw; > >In this case, the operators “new” and “delete” here >are the overloaded operators in the Weapon class. > >Example: >/////////////////////////////////////////////////////// >/////////////////////////// > >//aircraft.h >#include "stdafx.h" > >#include <iostream> >#include <stdlib.h> >#include <stdio.h> >#include <assert.h> >#include <vector> >#include <algorithm> //find() > >using namespace std; > >#ifndef _AIRCRAFT_H_ >#define _AIRCRAFT_H_ > >#include "baseclass.h" >#include "Vector.h" >#include "SC.h" > >class Aircraft:public baseClass >{ >private: > int type; > Vector currPos; // initial position > Vector destPos; // destination position > Vector buffPos; > bool active; > char flag; > >public: > Aircraft(); > Aircraft(char fl, Vector& cPos, Vector& dPos); > ~Aircraft(); > char getFlag(); > Vector getPosition(); > void updatePosition(); > int getType(); > bool isActive(); > void execute(double t); > void * operator new(size_t s); > void operator delete(void * mem); >}; > > >#endif

Notice: Copies of your message may remain on this and other systems on internet. Please be respectful.