vector class imitation

[Aesin]

I am trying to imitate the vector class with arrays

the constructor is

IntVector:: IntVector(unsigned size, int value)
{
  vsize=size;
  vcapacity=size;
  data=new int[value];
  for(unsigned int i=0; i<size; i++)
    {
      data[i]=value;
    }
}

the function im having trouble with is

const int &IntVector:: at(unsigned int index) const
{
  int temp=data[index];
  int &ref=temp;
  return ref;
}

in the main.cpp i try to use cout<<f.at(2); and it gives me an error

can anyone help?

[coder777]

You can do it like this:

const int &IntVector:: at(unsigned int index) const
{
  return data[index];
}

better don't return the reference but a copy of the int and check the index

[zb0S216C]

Make sure that you are accessing a valid index. Add this in your at( ); function:

if( ( index >= 0 ) && ( index <= YourMaxArrayLength - 1 ) )
{
    // The given index is not lower that zero( first ) and it's not greater that the last
    return data[ index ];
}