On Mon, Feb 16, 2009 at 7:29 PM, e211 <e...@hotmail.com> wrote:
>
> //The following code works and there is no way it should. Seems like a bug
> someone put in on purpose
>
> #include <iostream>
> using namespace std;
>
> void swap(int *x, int *y)
> {
> int temp;
> temp = *x;
> *x = *y;
> *y = temp;
> }
>
> int main()
> {
> int x = 10;
> int y = 20;
> cout << x << " " << y << endl;
> swap(x,y); //how does this work, there is no way this should compile
> and
> run and actually work
> cout << x << " " << y << endl;
> }
iostream is bringing in the definition of std::swap which takes a
reference. And you have a "using namespace std;" there.
Thanks,
Andrew Pinski
