Can't create two different queues using one template queue
Apr 17, 2019 at 10:24pm UTC
I get an error on
stringQueue.enqueue(name) and [code]stringQueue.dequeue(name) underneath "name". The error I get is "cannot convert argument 1 from string to int". I'm trying to make a program that takes 5 numbers and enqueues and dequeues them, then takes 5 strings and enqueues and dequeues. And then display them on the screen. Any help would be greatly appreciated.
I need to use only one template for this code. Thanks.
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#include <iostream>
using namespace std;
template <class T, int MAX_ITEMS>
class Queue
{
private :
T items[MAX_ITEMS];
int front;
int rear;
public :
Queue() { front = rear = MAX_ITEMS - 1; }
~Queue() {}
void makeEmpty() { front = rear = MAX_ITEMS - 1; }
void enqueue(int item)
{
rear = ((rear + 1) % MAX_ITEMS);
items[rear] = item;
}
void dequeue(int & item)
{
front = ((front + 1) % MAX_ITEMS);
item = items[front];
}
bool isEmpty() { return (front == rear); }
bool isFull() { return (rear + 1) % MAX_ITEMS == front; }
};
#include <iostream>
#include "Queue.h"
using namespace std;
const int MAX_ITEMS = 6;
int main()
{
int item;
string name;
Queue <int , MAX_ITEMS> intQueue;
Queue <string, MAX_ITEMS> stringQueue;
cout << "Enter 5 integer values: \n" ;
while (true )
{
if (intQueue.isFull())
break ;
cin >> item;
intQueue.enqueue(item);
}
while (!intQueue.isEmpty())
{
intQueue.dequeue(item);
cout << item << " --> " ;
}
cout << "NULL\n\n" ;
cout << "Enter 5 string values: \n" ;
while (true )
{
if (stringQueue.isFull())
break ;
cin >> name;
stringQueue.enqueue(name); //error here
}
while (!stringQueue.isEmpty())
{
stringQueue.dequeue(name); //error here
cout << name << " --> " ;
}
cout << "NULL\n\n" ;
system("PAUSE" );
return 0;
}
Last edited on Apr 17, 2019 at 10:32pm UTC
Apr 17, 2019 at 10:33pm UTC
paste the error, verbatim.
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//void enqueue(int item)
//void dequeue(int& item)
void enqueue(T item)
void dequeue(T& item)
Apr 17, 2019 at 10:52pm UTC
That fixed it, ne555. Thank you.
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