Got One Error In My Code

[jacksparrow]

it says

1> c:\users\hani\bookstoreassignment\bookstoreassignment\thecode.cpp(304) : see reference to class template instantiation 'linkListType<Type>' being compiled

anyway here is out my code ,, actually its pretty long

# include <iostream>
# include <iomanip>
#include <string>
#include <cassert>
using namespace std;

struct book
{
 string title;
 string author;
 float price;
 long ISBN;
};

template <class Type>
struct Nodetype
{
 Type info;
 Nodetype <Type> *link;
};

template <class Type>
class linkListType
{ 
 friend void splitList(const linkListType <Type> & L ,linkListType <Type> & L1 , linkListType <Type> & L2);
 private:
  Nodetype <Type> *first;
  Nodetype <Type> *last;
  int count;
 public:
  
  linkListType();
  bool isEmpty();
  void print();
  void printItem(const Type & Item);
  void destroylist();
  int listSize();
  Type front();
  Type back();
  bool Search(const Type & Item);
  void insertfirst(const Type & Item);
  void insertlast(const Type & Item);
  void deleteItem(const Type & Item);
  void splitList (linkListType <Type> & L1 , linkListType <Type> & L2);
  ~linkListType();
};
 

template <class Type>
linkListType <Type> :: linkListType()
{
 first=NULL;
 last=NULL;
 count=0;
}

template <class Type>
bool linkListType <Type> :: isEmpty()
{
 if(first==NULL && last==NULL && count==0)
  return true;
 else
  return false;
}


template <class Type>
void linkListType <Type> :: destroylist()
{
 Nodetype <Type> *temp;
 while (first != NULL)
 {
  temp=first;
  first=first->link;
  delete temp;
 }
 last=NULL;
 count=0;
}


template <class Type>
int linkListType <Type> :: listSize()
{
 return count;
}

template <class Type>
Type linkListType <Type> :: front()
{
 assert(last!= NULL);
 return first->info;
}

template <class Type>
Type linkListType <Type> :: back()
{
 assert(last!= NULL);
 return last->info;
}

template <class Type>
bool linkListType <Type> :: Search(const Type & Item)
{
 Nodetype <Type> *curr;
 bool found=false;
 curr=first;
 while (curr != NULL && !found)
 {
 if(curr-> info.ISBN == Item.ISBN)
 {
  found=true;
  break;
 }
 else
  curr=curr->link;
 }
 return found;
}

template <class Type>
void linkListType <Type> :: insertfirst(const Type & Item)
{
 Nodetype <Type> *newnode;
 newnode = new Nodetype <Type>;
 assert (newnode !=NULL);
 newnode->info = Item;
 newnode->link =first;
 first=newnode;
 count++;
 if(last==NULL)
  last= newnode;
}

template <class Type>
void linkListType <Type> :: insertlast(const Type & Item)
{
 Nodetype <book> *newnode;
 newnode = new Nodetype <Type>;
 assert (newnode !=NULL);
 newnode->info=Item;
 newnode->link =NULL;
 if(first==NULL)
 {
  first= newnode;
  last=newnode;
  count++;
 }
 else
 {
  last->link =newnode;
  last=newnode;
  count++;
 }
}

template <class Type>
void linkListType <Type> :: deleteItem(const Type & Item)
{
 Nodetype <Type> * curr;
 Nodetype <Type> * pre;
 bool found= false;
 if(first==NULL)
  cerr<<"cannot delete from an empty list\n";
 else
 {
  if(first->info.ISBN == Item.ISBN)
  {
   curr = first;
   first = first->link;
   count--;
   if (first == NULL)
    last=NULL;
   delete curr;
  }
  else
  {
   pre = first;
   curr=first->link;
   while (curr != NULL && !found)
   {
    if(curr->info.ISBN != Item.ISBN)
    {
     pre=curr;
     curr=curr->link;
    }
    else
     found=true;
   }
   if(found)
   {
    pre->link = curr->link;
    count--;
    if (last == curr)
    last= pre;
    delete curr;
   }
   else
    cout<<"the item that you want to delete is not availabel\n";
   }
  }
}
 
template <class Type>
linkListType <Type> :: ~linkListType()
{
 distroylist();
}


template <class Type>
void linkListType <Type> :: print()
{
 Nodetype <Type> *curr;
 curr=first;
 cout<<"The book title /t "<<"The aother /t "
 <<" The price /t"<<" The ISBN";
 cout<<"\n\n";
 while (curr != NULL)
 {
  cout<<curr->info.title<<"/t"<<curr->info.author
  <<"/t"<<curr->info.price<<"/t"<<curr->info.ISBN
  <<endl;
  curr=curr->link;
 }
}


template <class Type>
void linkListType <Type> :: printItem(const Type & Item)
{
 Nodetype <Type> *curr;
 bool found=false;
 curr=first;
 while (curr != NULL && !found)
 {
  if(curr-> info.ISBN == Item.ISBN)
  {

   cout<<curr->info.title<<"/t"<<curr->info.author
   <<"/t"<<curr->info.price<<"/t"<<curr->info.ISBN
   <<endl;
   found=true;
  }
  else
   curr=curr->link;
 }
 if (!found)
  cout<<"the item is not available\n";
}

template <class Type>
void linkListType <Type> :: splitList (linkListType <Type> & L1 , linkListType <Type> & L2)
{
 Nodetype <Type> * curr;
 curr=first;
 if( isEmpty())
  cerr<<"the list is empty\n";
 else if (first == last && count ==1)
 {
  if(first->info.price > 20)
   L2.insertlast(first->info);
  else
   L1.insertlast(first->info);
 }
 else
  while(curr !=NULL)
  {
   if(curr->info.price > 20)
    L2.insertlast(curr->info);
   else
    L1.insertlast(curr->info);
   curr=curr->link;
  }
}

template <class Type>
void splitList (linkListType <Type> & L,linkListType <Type> & L1 , linkListType <Type> & L2)
{
 Nodetype <Type> * curr;
 curr=L.first;
 if( L.isEmpty())
  cerr<<"the list is empty\n";
 else if (L.first == L.last && L.count ==1)
 {
  if(L.first->info.price > 20)
   L2.insertlast(L.first->info);
  else
   L1.insertlast(L.first->info);
 }
 else
  while(curr !=NULL)
  {
   if(curr->info.price > 20)
    L2.insertlast(curr->info);
   else
    L1.insertlast(curr->info);
   curr=curr->link;
  }
}

void main()
{
 linkListType <book> list;
 linkListType <book> list1;
 linkListType <book> list2;
 book y;
 int x;
 cout<<"Input your choice\n";
 cout<<"enter\t0\t.Exit the program "<<endl;
 cout<<" \t1\t.Insert new book's info"<<endl;
 cout<<" \t2\t.Delete a book (according to ISBN)"<<endl;
 cout<<" \t3\t.print all books"<<endl;
 cout<<" \t4\t.print one book info (according to ISBN)"<<endl;
 cout<<" \t5\t.check if there are books"<<endl;
 cout<<" \t6\t.to check how many books there"<<endl;
 cout<<" \t7\t.To print the first book info"<<endl;
 cout<<" \t8\t.To print the last book info"<<endl;
 cout<<" \t9\t.To search about a book (according to ISBN)"<<endl;
 cout<<" \t10\t.To find the most expensive book"<<endl;
 cout<<" \t11\t.To print the books of praice < OR = 20 BD"<<endl;
 cout<<" \t12\t.To print the books of praice > 20 BD"<<endl;
 cout<<" \t13\t.To distroy all the info about books"<<endl;
 cout<<"Enter your choice :\t ";
 cin>>x;
 cout<<endl;
 while(x != 0)
 {
  switch(x)
  {
   case 1:
   {
    cout<<endl;
    cout<<"enter the title\t\t ";
    cin>>y.title;
    cout<<"\nenter ISBN\t\t";
    cin>>y.ISBN;
    cout<<"\nenter the price\t\t ";
    cin>>y.price;
    cout<<"\nenter the author ";
    cin>>y.author;
    cout<<endl<<endl;
      list.insertlast(y);
      
   }
   break;
   case 2:
   {
    cout<<endl;
    cout<<"Enter the ISBN of the book you want to delete\t";
    cin>>y.ISBN;
    list.deleteItem (y);
   }
   break;
  case 3:
  {
   cout<<endl;
   list.print();
  }
  break;
  case 4:
  {
   cout<<"\nEnter the ISBN of the book you want to print\n";
   cin>>y.ISBN;
   list.printItem(y);
  }
  break;
  case 5:
  {
   int a= list.isEmpty();
   if (a== false)
   cout<<"Yes there are "<<list.listSize()<<" books\n";
   else
   cout<<"Sorry there is no books entered\n";
  }
  break;
  case 6:
  {
   cout<<"\n Ther are \t"<<list.listSize()<<"\t books";
  }
  break;
  case 7:
  {
   book n;
   n=list.front();
   cout<<"\n The first book is\n"<<n.title<<endl;
  }
  break;
  case 8:
  {
   book n;
   n=list.back();
   cout<<"\nThe last book is\n"<<n.title<<n.author<<n.price<<n.ISBN<<endl;
  }
  break;
  case 9:
  {
   cout<<"\nEnter the ISBN of the book you want to print\n";
   cin>>y.ISBN;
   list.printItem(y);
  }
  break;

  case 10:
  {
   list.splitList (list1,list2);
   list1.print();
  }
  break;
  case 12:
  {
   list.splitList (list1,list2);
   
   list2.print();
  }
  break;
  case 11:
  {
   cout<<"you chose to distroy the list\n";
   list.destroylist();
  }
  break;
  default:
   cout<<"Invalid choice\n";
  }
  cout<<"Your are in main menu again"<<endl;
  cout<<"enter\t0\t.Exit the program "<<endl;
  cout<<" \t1\t.Insert new book's info"<<endl;
  cout<<" \t2\t.Delete a book (according to ISBN)"<<endl;
  cout<<" \t3\t.print all books"<<endl;
  cout<<" \t4\t.print one book info (according to ISBN)"<<endl;
  cout<<" \t5\t.check if there are books"<<endl;
  cout<<" \t6\t.to check how many books there"<<endl;
  cout<<" \t7\t.To print the first book info"<<endl;
  cout<<" \t8\t.To print the last book info"<<endl;
  cout<<" \t9\t.To search about a book (according to ISBN)"<<endl;
  cout<<" \t10\t.To find the most expensive book"<<endl;
  cout<<" \t11\t.To print the books of praice < OR = 20 BD"<<endl;
  cout<<" \t12\t.To print the books of praice > 20 BD"<<endl;
  cout<<" \t13\t.To distroy all the info about books"<<endl;
  cout<<"Enter your choice :\t ";
  cin>>x;
  cout<<endl;
 }
 cout<<"you are outing the program\n";
} 

[alanjhd08]

Where do you define distroylist() ?

[jacksparrow]

the function header in public

and the implantation down

[jacksparrow]

ok thx mate fixed it