03D – Computer Sir Ki Class

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Exam Questions-CBSE12A-2018-03D #CPP#5714    siteicon   siteicon  

Problem Statement - 03D

Write the definition of a member function AddPacket() for a class QUEUE in C++, to remove/delete a Packet from a dynamically allocated QUEUE of Packets considering the following code is already written as a part of the program.

struct Packet
{
  int PID;
  char Address[20];
  Packet *LINK;
};
class QUEUE
{
  Packet *Front, *Rear;
public:
  QUEUE(){Front=NULL;Rear=NULL;}
  void AddPacket();
  void DeletePacket();
  ~QUEUE();
};

Solution

TC++ #5714

void QUEUE::AddPacket()
{
  if(Front != NULL)
  {
    Packet *T;
    T=Front;
    cout<<Front->PID<<Front->Address<<" removed"<<endl;
    //OR cout<<T->PID<<T->Address<<" removed"<<endl;
    Front = Front->LINK;
    delete T;
    if (Front==NULL)
     Rear=NULL;
   }
   else
     cout<< "Queue Empty"<<endl;
}


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CSKC| Created: 2-Jan-2019 | Updated: 1-Apr-2019|CBSE12A-2018









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