foreach vs. iterators

[Bill Baxter]

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()) )
{
}