Heap corruption detected

I don't know what I am doing, but I would like someone to help me on this.

I am trying to build a default constructor by using the initializer list, and I am getting this error.

HEAP CORRUPTION DETECTED: after Normal block(#126) at 0x003C5060. CRT detected that the application wrote to memory after end of heap buffer.

I believe the error could be on these following modules.

Code:

---


class list
{
public:
... ...

private:
        struct node
        {
                // constructor
                node(const winery& winery);
               
                winery item;
                node * nextByName;
                node * nextByRating;
        };

        node * headByName;
        node * headByRating;

---

Code:

---


//constructor

list::list() :
headByName(NULL),
headByRating(NULL),
myHead(NULL),
myTraverser(NULL)

{
}

//destructor

list::~list()
{
        delete headByName;
        headByName = NULL;
        delete headByRating;
        headByRating = NULL;
        delete myHead;
        myHead = NULL;
        delete myTraverser;
        myTraverser = NULL;

}

---

But I'd rather send you guys the entire code so that I can avoid any confusions, and for you to test it and know what I'm talking about.

lab1.zip - File Shared from Box.net - Free Online File Storage

Look at the number in () - #126

Now read this
How to use _crtBreakAlloc to debug a memory allocation

This will stop in the debugger just as you allocate that block. You can then follow it through to see where you're overwriting the end of it.