Segmentation Fault Issues

[thechad90000]

While debugging I keep getting a segmentation fault when I come to this portion of my .cpp file. Is there anyway someone can help me fix this error because it's frustrating and I don't know where it's coming from.

string List::Longest()
{
    int size = 0;
    string sizestring = Head->Data;
    Node* Current = Head;
    if (Current == NULL)
        return "Null";
    while(Current->Next != NULL)
    {
        
        if ((Current->Data).length() > size)
        {
            size = (Current->Data).length();
            sizestring = Current->Data;
        }
        Current = Current -> Next;
    }

    return sizestring;
}

[Moschops]

Which debugger are you using that doesn't tell you which line causes the segFault? Are you building with debugging information switched on?

This problem is exactly what a decent debugger will identify for you in seconds.

[thechad90000]

It's a NetBeans debugger and it doesn't say which line the seg Fault is caused by. It just says segfault and aborts. I know it's this function though.

[Moschops]

Almost certainly, you're trying to read or write memory that doesn't belong to you, because you've got a bad pointer. Without a working debugger to tell you exactly where, you'll just have to output the value of each pointer you're using and see which of them is bad.

[thechad90000]

The segmentation fault came as a result of having

string sizestring = Head->Data;

before the if statement which was a segmentation fault if the head was Null.