problem updating linked list

Dreea

Hello all
I have a linked list and a method that inserts certain elements in the link. When going trough the list in the method I make the changes the list is changed as i want, but when i use the list in another function the list is not updated, it contains null components. What can I do in order for my list to remain changed?
this is the functin that modifies the list

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BYTE CheckComponents()

{

  Node *comp=components, *x, *y;

  while (comp!=NULL)

  {

    ..............................

    y = new Node("Telegram", telegram, PLAIN_DESC);

    y->setNext(comp->getNext());

    comp->setNext(y);

    comp=comp->getNext();
 
  }

}

can you please tell me what am i doing wrong?
thanks

dmjpro

Quote:

Originally Posted by Dreea

Hello all
I have a linked list and a method that inserts certain elements in the link. When going trough the list in the method I make the changes the list is changed as i want, but when i use the list in another function the list is not updated, it contains null components. What can I do in order for my list to remain changed?
this is the functin that modifies the list

Expand|Select|Wrap|Line Numbers

 
BYTE CheckComponents()

{

  Node *comp=components, *x, *y;

  while (comp!=NULL)

  {

    ..............................

    y = new Node("Telegram", telegram, PLAIN_DESC);

    y->setNext(comp->getNext());

    comp->setNext(y);

    comp=comp->getNext();
 
  }

}

can you please tell me what am i doing wrong?
thanks

Show me your full code.
Then I will be able to solve your code.

Kind regards,
Dmjpro.

Dreea

I was deleting y variable at the end of the function, that is why the list was truncated in other functions. Now I have another problem... I have pieces of code similar to this one:

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    p2=new Node(x->getComponentName(), cVal, cVal);

    p1->setNext(p2);

    p1=p2;

    p2=NULL;

    delete p2;

and in the output window I find the following message signaling i have a memory leak at the line where I allocate memory to p2
program.cpp(1311) : {501} normal block at 0x00435EC0, 56 bytes long.
Data: < [B ^C A%C > F4 5B 42 00 00 5E 43 00 CC CD CD CD 41 25 43 00
{500} normal block at 0x00435F30, 33 bytes long.
Data: < 21 23 4A E3 > 00 32 31 20 32 33 20 34 41 20 45 33 20 00 CD CD
{497} normal block at 0x004359E0, 33 bytes long.
Data: < Telegram > 00 54 65 6C 65 67 72 61 6D 00 CD CD CD CD CD CD

Any idea what am I doing wrong?

problem updating linked list

re: problem updating linked list

re: problem updating linked list

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