I’m getting run time error and I don’t know why. I tried backtracking but couldn’t figure out. please help! ================================================================= ==31==ERROR: AddressSanitizer: heap-use-after-free on address 0x602000000098 at pc 0x000000370bdd bp 0x7ffdce3742a0 sp 0x7ffdce374298 READ of size 8 at 0x602000000098 thread T0 #2 0x7fe06dce80b2 (/lib/x86_64-linux-gnu/libc.so.6+0x270b2) 0x602000000098 is located 8 bytes inside of 16-byte region [0x602000000090,0x6020000000a0) freed ..
Category : linked-list
struct SinglyLinkedListNode{ int data; SinglyLinkedListNode* next = NULL; }; SinglyLinkedListNode* init(int data){ SinglyLinkedListNode *newNode = (SinglyLinkedListNode*)malloc(sizeof(SinglyLinkedListNode)); newNode -> data = data; **Line 1** newNode -> next = NULL; return newNode; } If I do not specify next of new Node "NULL" then I am getting error of infinite loop, why is that so. Isn’t NULL ..
In the following code I am inserting at last node. It is working fine. But my doubt is since I have declared Node * last; locally, so whenever a new call is made a new pointer variable will be created and previous one will be removed from the memory after function gets terminated. So how ..
I’m implementing an insert (before an element) and add (after an element) functions for a doubly linked list. My question is the difference in the value I have to return and why they’re different. For my insert function Link* insert(Link* n), I have to return n. For my add function Link* add(Link* n), I have ..
I’m reading Cracking the Coding Interview and doing practice problems and I’m stuck on this one: "Implement an algorithm to delete a node in the middle (i.e., any node but the first and the last node, not necessarily the exact middle) or a singly linked list, given only access to that node. EXAMPLE Input: the ..
I’m new to c++ and I use c++ to learn data structure recently. I stuck when the error occurs, I’ve tried to debug but It’s still confused me. So, this error is I try to implement two operations concatenate and merge, my terminal shows the result that seems to successful on logical. However, the error ..
I am trying to solve this question, where we have to reverse a doubly linked list. I have written the following function for that purpose Node* reverseDLL(Node * head) { Node *curr=head; Node *prev=curr->prev; Node *next; while(curr!=NULL) { next=curr->next; curr->next=prev; curr->prev=curr->next; prev=curr; curr=next; } head=prev; return head; } But according to the online judge, it ..
I want to concatenate two link lists using operator overloading. I have been trying for the past few hours but no result. I am trying to create a separate function for concatenating which I would later use in operator overloading. Here’s what I have so far. List Definition struct Node { int info; Node* link; ..
I have a LinkedList class and everything works except for my remove function. It works except for when it is removing from the end. If I remove from the end and then try to display the new list the program crashes and doesnt give me an error. I was wondering if someone could help me ..
I was learning c++ linked list from a youtube video and I saw the second way of passing head to a function for a linked list. The code seems to work fine for me in all cases, was just curious about the difference. Thanks btw. Source: Windows Que..
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