I am learning c++ and I am having a little trouble with this program. I converted one big program I created into classes and I am having trouble. I am new to classes. Can someone help. It will be greatly appreciated.
main.cpp
vehicle.cppCode:const int NUM_REPAIR_BAYS = 4; #include <iostream> #include <string> #include <cstdlib> #include <ctime> #include <queue> #include "vehicle.h" using namespace std; // return available vehicle Vehicle* vehicle_available(queue<Vehicle*>& q, queue<Vehicle*>& pq); // return repair bay availabe int repair_bay_available(Vehicle* repairBay[]); int main() { int i; queue<Vehicle*> q; // vehicle que queue<Vehicle*> pq; // priority queue Vehicle* repair_bay[NUM_REPAIR_BAYS]={0}; // repair bay vector<Vehicle*> salvage_yard; // salvage yard vector<Vehicle*> active_duty; // active duty Vehicle* v; int id = 0; srand((unsigned int)time(0)); for(int t=0;t<5;t++) { // Create a number (0-4) new random vehicles per day int n = rand() % 4; // As the new vehicles are created they are placed into a queue for(i=0;i<n;i++) { v = new Vehicle (id++); cout << "creating vehicle: " << endl; v->print(); q.push(v); cout << endl; } // The members of the queue (#max/time) are then processed by a "yard manager // The front of the queue is popped and added to: Salvage Yard // or Repair Bay if available Vector[4] v = vehicle_available(q,pq); // get available vehicle if(v != NULL) { cout << "processing vehicle: " << endl; v->print(); cout << endl; i = repair_bay_available(repair_bay); if(i >= 0) { v->print(); cout <<"was sent to repair bay #" << (i+1) << endl; cout << endl; repair_bay[i] = v; } else { cout << "All repair bays filled, vehicle sent to salvage yard" << endl; salvage_yard.push_back(v); } // When a vehicle in a bay is finished it is then run to testing, each component is tested, // if all pass the vehicle is returned to duty else returned to a priority queue which will pre-empt // the repair queue (fastest first) // for each repair bay for(i=0;i<NUM_REPAIR_BAYS;i++) { v = repair_bay[i]; if(v != NULL) { if(v->passed_test()) // passed test? { v->print(); cout << "passed repair test, vehicle sent to active duty" << endl; cout << endl; active_duty.push_back(v); repair_bay[i]=0; } else if(v->failed_test()) // failed test { v->print(); cout << "failed repair test, vehicle sent to priority queue" << endl; cout << endl; pq.push(v); repair_bay[i]=0; } } } } } cout << endl; // print out whats in queue cout << "Vehicles in left in Queue: " << endl; while(q.size() > 0) { print(q.front()); q.pop(); } cout << endl; // print out whats in priority queue cout << "Vehicles left in priority Queue: " << endl; while(pq.size() > 0) { print(pq.front()); pq.pop(); } cout << endl; // print out whats in storage bay cout << "Vehicles in Repair Bay: " << endl; for(i=0;i<NUM_REPAIR_BAYS;i++) if(repair_bay[i] != 0) print(repair_bay[i]); cout << endl; // print out whats in salvage yard cout << "Vehicles in Salvage Yard: " << endl; for(i=0;i<salvage_yard.size();i++) print(salvage_yard[i]); cout << endl; // print out whats in active duty cout << "Vehicles in Active Duty: " << endl; for(i=0;i<active_duty.size();i++) print(active_duty[i]); cout << endl; return 0; } //****************************************************************************** // return vehicle avaiable Vehicle* vehicle_available(queue<Vehicle*>& q, queue<Vehicle*>& pq) { Vehicle* v=NULL; // check priority queue first for vehicles if(pq.size() > 0) { v = pq.front(); pq.pop(); } // check queue for vehicles else if(q.size() > 0) { v = q.front(); q.pop(); } return v; } //****************************************************************************** // return repair bay availabLe int repair_bay_available(Vehicle* repair_bay[]) { for(int i=0;i<NUM_REPAIR_BAYS;i++) { if(repair_bay[i] == NULL) return i; } return -1; }
vehicle.hCode:#include <iostream> #include <cstdlib> #include <string> #include "vehicle.h" using namespace std; void Vehicle::print() { cout << id << " " << Type << " "; if(Armour[0]) cout << "F"; if(Armour[1]) cout << "S"; if(Armour[2]) cout << "R"; if(Armour[3]) cout << "P"; cout << " "; cout << Weapons << " "; if(Transmission) cout << "Transmission"; if(Differential) cout << "Differentisl"; cout << Engine << endl; } Vehicle::Vehicle (int _id) { id = _id; int x = rand() % 4; // V1, V2, etc) Type = "V1"; if(x == 1) Type = "V2"; if(x == 2) Type = "V3"; if(x == 3) Type = "V4"; Armour[0] = true; // bool: F,S,R,P) Armour[1] = rand() % 2==0; Armour[2] = rand() % 2==0; Armour[3] = rand() % 2==0; x = rand() % 3 + 1; if(x == 1) Weapons = "w1"; // (list of strings w1, w2, w3...etc) if(x == 2) Weapons = "w1, w2"; if(x == 3) Weapons = "w1, w2, w3"; if(x == 4) Weapons = "w1, w2, w3, w4"; // Drive train Transmission = rand() * 2 == 0; Differential = rand() * 2 == 0; x = rand() % 3; if(x == 0) Engine = 'O'; // (O,N,D) O-operational N-No engine D-Damaged if(x == 1) Engine = 'N'; if(x == 2) Engine = 'D'; } // return true if vehicle pased test bool Vehicle::passed_test() { // 50 % vehicle pass if(rand()%100>50) { // set repaired Transmission=false; Differential=false; Engine='O'; return true; } else return false; } // return false if vehicle pass test bool Vehicle::failed_test() { return rand()%100<20; }
errorCode:using namespace std; // Vehicle info class Vehicle { int id; // -Id number string Type; // V1, V2, etc) bool Armour[4]; // bool: F,S,R,P) string Weapons; // (list of strings w1, w2, w3...etc) // Drive train bool Transmission; bool Differential; char Engine; // (O,N,D) O-operational N-No engine D-Damaged public: Vehicle (int id); void print (); bool passed_test(); bool failed_test(); };
Code:In function 'int main()': error: 105: 'print' was not declared in this scope error: 114: 'print' was not declared in this scope error: 124: 'print' was not declared in this scope warning: 129: comparison between signed and unsigned integer expressions error: 130: 'print' was not declared in this scope warning: 135: comparison between signed and unsigned integer expressions error: 136: 'print' was not declared in this scope
Originally Posted by binarydude87
