Thread: I Need Help

hi there I am a newbie

could you please convert this c++ program into a C program

Code:

#include<iostream.h>
#include<conio.h>
#include<stdio.h>
#define NULL 0

class address
{
    private:
    struct info
    {
      char nickname[20],name[30],mail[35];
      int id_no;long int phone;
      info *next;
    };
    info *head,*temp,*disp;
    public:
    address();
    ~address();
    void addrecord();
    void deleterecord();
    void modifyrecord();
    void displayrecord();
};
void address::address()
{
    head=NULL;
    temp=NULL;
    disp=NULL;
}
address::~address()
{
    while(head!=NULL)
    {
      info *t1;
      t1=head;
      head=head->next;
      delete t1;
    }
}

void address::addrecord()
{
    info *add;
    char proceed='y';
    while(proceed=='y')
    {
      clrscr();
      add=new info;gotoxy(25,10);
      cout<<"\n\tEnter item entry number  :";
      cin>>add->id_no;
      fflush(stdin);
      cout<<"\n\t\tEnter name  :";
      scanf("%s",add->name);
      fflush(stdin);
      cout<<"\n\t\tEnter e-mail address  :";
      scanf("%s",add->mail);
      fflush(stdin);
      cout<<"\n\t\tEnter phone number  :";
      cin>>add->phone;
      fflush(stdin);
      cout<<"\n\t\tEnter nickname  :";
      scanf("%s",add->nickname);
      fflush(stdin);

      if(head==NULL)
      {
	head=add;
	add->next=0;
	temp=add;
      }
      else
      {
	temp->next=add;
	add->next=NULL;
	temp=add;
      }
      cout<<"\n\n\t\tWant to proceed[y/n]:";
      cin>>proceed;
      fflush(stdin);
    }
}

void address::deleterecord()
{
    info *del;
    int tex,present=0;clrscr();
    if(head==NULL)
    {
      gotoxy(25,20);
      cout<<"\n No record found to delete";getch();
      return;
    }
    gotoxy(25,20);
    cout<<"\n Enter item number to delete:";
    cin>>tex;
    fflush(stdin);
    for(del=head;del!=NULL;del=del->next)
    {
      if(del->id_no==tex)
      {
	if(head->id_no==tex)
	{
	  del=head;
	  head=head->next;
	  delete del;
	  return;
	}
	else
	{
	  for(disp=head;disp!=NULL;disp=disp->next)
	  if(disp->next==del)
	  {
	    disp->next=del->next;
	    delete del;
	    if(disp->next==NULL) temp=disp;
	    return;
	  }
	}
      }
    }
    if(present==0)
    cout<<"\n No such entry found";
    else
    cout<<"\n Entry deleted.";getch();
}

void address::modifyrecord()
{
    info *modify;
    int tex,present=0;clrscr();gotoxy(25,20);
    cout<<"\n Enter entry number to edit ";
    cin>>tex;
    fflush(stdin);
    for(modify=head;modify!=NULL;modify=modify->next)
    {
      if(modify->id_no==tex)
      {
	cout<<"\n\t\t Enter nickname to change:";
	scanf("%s",modify->nickname);
	fflush(stdin);
	cout<<"\n\t\t Enter name to change:";
	scanf("%s",modify->name);
	fflush(stdin);
	cout<<"\n\t\t Enter e-mail to change:";
	scanf("%s",modify->mail);
	fflush(stdin);
	cout<<"\n\t\t Enter phone number to change";
	cin>>modify->phone;
	fflush(stdin);
	return;
      }
    }
    if(present==0)
    cout<<"\n Entry not found";getch();
}

void address::displayrecord()
{
    if(head==NULL)
    {
      clrscr();
      cout<<"\n No record to display";getch();
      return;
    }
    for(disp=head;disp!=NULL;disp=disp->next)
    {
      clrscr();gotoxy(25,20);
      cout<<"\n\t entry no:"<<disp->id_no;
      cout<<"\n\t nickname:"<<disp->nickname;
      cout<<"\n\t name:"<<disp->name;
      cout<<"\n\t e-mail address:"<<disp->mail;
      cout<<"\n\t phone number:"<<disp->phone;
      getch();
    }
}

void main()
{
    int choice;
    address addressobj;
    while(1)
    {
      clrscr();
      gotoxy(25,20);
      cout<<"ADDRESS BOOK \n\n\n\n";
      cout<<"\n\t\t 1.ADD NEW ENTRY";
      cout<<"\n\t\t 2.DELETE ENTRY";
      cout<<"\n\t\t 3.MODIFY RECORD";
      cout<<"\n\t\t 4.DISPLAY RECORD";
      cout<<"\n\t\t 5.EXIT\n";
      cout<<"\n\t\t Enter your choice [1-5]:";
      cin>>choice;
      fflush(stdin);
      switch(choice)
      {
	case 1:
	  addressobj.addrecord();
	  break;
	case 2:
	  addressobj.deleterecord();
	  break;
	case 3:
	  addressobj.modifyrecord();
	  break;
	case 4:
	  addressobj.displayrecord();
	  break;
	case 5:
	  return;
      }
    }
}

I really need help.. please do if you can


thanks in advance

Nb

[code][/code]tagged by Salem

What is the problem that you don't do it yourself?