On 20 February 2016 at 18:55, H.J. Lu <hjl.to...@gmail.com> wrote:
> struct dummy0
> {
> };
>
> struct dummy
> {
> dummy0 d[20];
>
> dummy0 * foo (int i);
> };
>
> dummy0 *
> dummy::foo (int i)
> {
> return &d[i];
> }
>
> dummy0 *
> bar (dummy d, int i)
> {
> return d.foo (i);
> }1. This has undefined behaviour due to returning a pointer to a local variable 2. There's still no need for the reference to the original argument since copying it is a nop.
