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When would a linked list be preferred over a circular buffer?


When would a linked list be preferred over a circular buffer?

By : user2172798
Date : October 22 2020, 08:10 PM
it fixes the issue The MCS lock is one of the most scalable lock designs there is. A thread uses an atomic compare and exchange to attempt to seize the lock. If it works it is done. If it doesn't work, the thread uses an atomic exchange to enqueue itself at the tail of the list of waiters.
There is not way to do a similar thing with circular buffers without locks or more complicated use of atomic instructions.
code :


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Converting a linear linked list to a circular linked list

Converting a linear linked list to a circular linked list


By : user2647018
Date : March 29 2020, 07:55 AM
will help you Everything you wrote as comments is true, and at the end you can consider any point as head since it's a circular list now
the only difference between a linear linked list and a circular one is that the last node points to NULL in the first case, or it points to the first node, for the second.
What is the difference between a Double ended linked list and a Circular linked list?

What is the difference between a Double ended linked list and a Circular linked list?


By : Himanshu Singh
Date : March 29 2020, 07:55 AM
may help you . In a circular linked list, the first node (head) points to the last node and the last node points to the first node.
How to insert a string in a circular linked list (i want to check the duplicate words in the circular linked list)?

How to insert a string in a circular linked list (i want to check the duplicate words in the circular linked list)?


By : user3428493
Date : March 29 2020, 07:55 AM
This might help you sorry - a lot of things are wrong. Here is the code pleas study the difference to your. To initialize private class variables you must use the constructor. Your addFirst() method must take a String instead of a Node object. The output is:
-Examine node 'place' -Examine node 'a better' -Examine node 'will' -First duplicate is 'will' -true
code :
public class LinkedTest   // Realy want a circulare linked list or a normal linked list ???
{
    private MyNode head; // head node of the list (or null if empty)
    private MyNode tail; // last node of the list (or null if empty)
    private int size; // number of nodes in the list   

private class MyNode<>  // INNER class
{ 
    private String word; // reference to the element stored at this node
    private MyNode next; // reference to the subsequent node in the list

    public MyNode(String w, MyNode n) 
     { 
       word = w;
       next = n;
     } 
// The outer class has access to the variables of the inner
//     public String getWord( ) { return word; } 
//     public MyNode<String> getNext( ) { return next; } 
//     public void setNext(MyNode<String> n) { next = n; } 
} // end of inner class



public LinkedTest( ) { head = null; tail=null; size=0; } // constructor
public int size( ) { return size; } 
public boolean isEmpty( ) { return size == 0; } 
public MyNode getHead( ) { return head; }

public void addFirst(String w) 
{
    MyNode n = new MyNode(w,null);
     if (head == null)
     {  head = n; tail = n; 
     } else
     {
        //n.setNext(head);
        n.next = head;
        head = n;
     }
     size++;
} 
public void addLast(String w)
{
      MyNode n = new MyNode(w,null);
      if (tail != null)
      {   tail.next = n; // tail.setNext(w);
          tail = n;
      } else
      {  head = n;
         tail = n;
      }
      size++;
} 

 public String last( ) 
 { // returns (but does not remove) the last element
      return  tail == null ? null : tail.word;
 }

/**
 * Checks the linked list for at least one duplicate
 * @return true if a duplicte was found, false otherwise
 */
public boolean checkDuplicate() 
{
    String str;

    for (MyNode a = head;a != null; a = a.next)
    { 
         str = a.word;
         System.out.println("Examine node '" + str + "'");

         for (MyNode b = a.next;b != null;b = b.next) // scan the list behind 'a'
         {
             if (str.equals(b.word))
             {    
                 System.out.println("First duplicate is '" + str + "'");
                 return true;
             }
         }
    }
    return false;
} //---------------- checkDuplicate
Circular Queue and Circular Linked List

Circular Queue and Circular Linked List


By : Srinivas Kotni
Date : March 29 2020, 07:55 AM
wish helps you Circular queue or Circular Buffer: is a way of implementing a queue. For example, suppose you want to implement a queue using an array. You'd have your enqueue() and dequeue() methods.
Suppose the underlying array is of length 7, and the user enqueues five values, so the values in the underlying array look like this:
What is the difference between a Ring Buffer and a Circular Linked List?

What is the difference between a Ring Buffer and a Circular Linked List?


By : Sarodge Dechgan
Date : March 29 2020, 07:55 AM
To fix the issue you can do A ring buffer is a single contiguous block of memory which contains your items and, when you reach the end, you cycle back to the start:
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