Question

I am currently getting an “0xC0000005: Access violation reading location 0xcccccce0.” error and I have tried diagnose the problem…I think the problem comes in when my rule of 3 that I have defined comes in play and points me to here.

size_type size() const
    {   // return length of sequence
    return (this->_Mysize); <---------------------this line
    }

I’m actually not sure if there is any problem at all, I have been dwelling on this for days on end.

Below is my rule of three

ArrayStorage::ArrayStorage(){
     myArray = new string[7079];
}

ArrayStorage::~ArrayStorage(){
    delete[] _data;
    delete[] myArray;
}

ArrayStorage::ArrayStorage(const ArrayStorage &A) {
    _size = A.size();
    _data = new string [size()];
    for (int i = 0; i < size(); ++i)
        _data[i] = A[i];
}

ArrayStorage& ArrayStorage::operator=(const ArrayStorage &A){
    if (this != &A) {
        delete [] _data;
        _size = A.size();
        _data = new string [A.size()];
        for (int i = 0; i < size(); ++i) {
             _data[i] = A[i];
        }
    }
    return *this;
}

const string& ArrayStorage::operator[](int i) const{
    assert((i >= 0) && (i < size()));
    return _data[i];
}

string& ArrayStorage::operator[](int i){
    assert((i >= 0) && (i < size()));
    return _data[i];
}

Answer 1

When uninitialized, stack variables are filled with 0xCC bytes if compiled with msvc. So 0xcccccce0 is probably the result of “this” being an uninitialized pointer variable on the stack plus _MySize offset in the object structure.