foreach vs. iterators

[Bill Baxter]

Sean Kelly wrote:
> Bill Baxter wrote:
> 
>> Sean Kelly wrote:
>>
>>> Sean Kelly wrote:
>>>
>>>> Still, I think it's useful to have in an iterator, so perhaps 
>>>> something roughly like this:
>>>>
>>>> interface Iterator(T)
>>>> {
>>>>     T val();
>>>>     T next();
>>>>     bool hasNext();
>>>> }
>>>
>>>
>>>
>>> Err... this doesn't work for an iterator returned for an empty 
>>> container.  
>>
>>
>> It's fine if you define the behavior to be that you have to call 
>> next() once to get the first value.  So for iteration idiom becomes:
>>
>> T v;
>> while(c.hasNext()) )
>> {
>> }
> 
> 
> Yup, but this seems confusing with the presence of val() methods.

I'm not sold on val() yet.  :-)

--bb