Ok, I'm trying to implament a linked list for the heck of it. So, after coming up with a bit of code, I compiled it and ran it to get what I guess is Windows XP version of an illegal error: "Please send this information to Microsoft".
I ran Visual C++'s debugger and found out that the error is in this code:
#include "stdafx.h"
#include <iostream>
#include "mylinkedlist.h"
int _tmain(int argc, _TCHAR* argv[])
{
int a = 1;
mylinkedlist<int> mll;
mll.push(&a);
std::cout<<mll.getdata();
int b;
std::cin>>b;
return 0;
}
on the line: mll.push(&a);
Here is the function for mylinkedlist::push:
T* push(T* value)
{
if(this->head == NULL)
{
this->currentnode = this->head;
return this->head->data = value;
}
else
{
this->currentnode->next->data = value;
this->currentnode = this->currentnode->next;
return this->currentnode->data;
}
};
Any idea of what could be the problem?
Here is the full definition of the class, if it is needed:
template <class T> struct node;
template <class T> class mylinkedlist
{
public:
//T* assign_head(T* value){return this->head->data = value;};
//T* addlink(T* value){return this->currentnode->next->data = value};
T getdata(){return (*this->currentnode->data);};
T* push(T* value)
{
if(this->head == NULL)
{
this->currentnode = this->head;
return this->head->data = value;
}
else
{
this->currentnode->next->data = value;
this->currentnode = this->currentnode->next;
return this->currentnode->data;
}
};
mylinkedlist(){this->currentnode = this->head;};
~mylinkedlist(){};
private:
bool start;
node<T>* head;
node<T>* currentnode;
};
template <class T> struct node
{
T* data;
node<T>* next;
};
Any help is appreciated.
Update: I've narrowed down the problem: it is either the testing of this->head == NULL, or something is wrong in the "else" statement.
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