> On 07 Apr 2014, at 08:44, Nicholas Radford wrote:
>
> I think the original question was, why does the zero trait require the add
> trait.
>
If that was the original question, then my answer would be that std::num::Zero
requires the Add trait because of the way it is specified: "Defines an ad
On Sun, Apr 6, 2014 at 7:50 PM, Philippe Delrieu
wrote:
> I need some more help.
>
> The impl Iterator<&mut ~Base> for Container declaration generate the error:
> error: missing lifetime specifier
> So I had it but I can't manage to return the next value with the specified
> life time.
> The code
Thanks for your help. I'll test ASAP.
I use the counter mutable var to have a simple implantation of the
iterator to make the code works. Thank for you're example to show a
better way. I was thinking of a similar way but I would like to avoid
the specific struct with perhaps use a recursive cal
I try to implement the iterator like that:
struct BaseItems<'a> {
iter : Items<'a, ~BaseImpl>
}
impl<'a> Iterator<&'a ~Base> for BaseItems<'a> {
fn next(&mut self) -> Option<&'a ~Base>{
match self.iter.next() {
Some(ref baseimpl) => {
Some
