gettin some error and dont give me s**t about the header files :D

[cod3x]

getting some problem in constructors can u givme an example program in copying of constructors

[3qX21hU5]

http://www.cplusplus.com/articles/y8hv0pDG/

[cod3x]

yo @Zereo why do we use the ampersand(&) inside the parameters?

[cod3x]

and thnx for the link

[3qX21hU5]

The & is the reference operator, when you use it in a function parameter you are telling the function to alter directly whatever you pass as a arguement instead of creating a temporary copy of the arguement.

For example here is some code that demostrates this.

void changeToZero(int &number)
{
    // Changes whatever you put in for the number parameter directly to 0
    number = 0;
}

int main()
{
    int myNumber = 7;
    
    // Notice how the number is 7
    cout << myNumber << endl;

    // This changes myNumber to 0 without returning anything.
    // This happens because the & operator is telling the function to directly alter myNumber.
    changeToZero(myNumber);

    // Number is now 0
    cout << myNumber << endl;

    return 0;
}

Now there is other reasons as to why people use the reference operator when dealing with member functions and functions. One of them is when you have a very large complex object, it is usually not good for performance to have function parameters create a copy of it so they can do calculations with it. So they use the reference operator (or a pointer) so that the object doesn't need to be copied. This is getting into some more advanced topics about performance so I won't go into detail about it, but here is a link that can help http://en.wikipedia.org/wiki/Reference_(C%2B%2B)

Hope this helps explain it, if it doesn't or you have any other questions just let me know and I would be glad to help with anything else.

[cod3x]

ur awesome :D