[boost] Re: [iterator facade] Why is dereference const?

From: David Abrahams (dave_at_[hidden])
Date: 2004-05-14 15:13:01

"Neal D. Becker" <ndbecker2_at_[hidden]> writes:

> David Abrahams wrote:
>
>> "Neal D. Becker" <ndbecker2_at_[hidden]> writes:
>> 
>>> Max Khesin wrote:
>>>
>>>> 
>>>>> "Neal D. Becker" <ndbecker2_at_[hidden]> writes:
>>>> 
>>>> Good suggestion!  I'll post the modified code if anyone is interested.
>>>> 
>>>> 
>>>> 
>>>> Yes pleaze.
>>>
>>> Here is the current version:
>> 
>> distance_to doesn't belong here, and you can eliminate the
>> corresponding cnt.
>> 
>
> Actually, I like the one based on Vladimir Prus much better than the one I
> wrote, so here is the current:

I don't love it.  Count is overkill; you only need a bool.  Also it
only works when value_type is default-constructible.  There's a
reason I suggested optional<value_type>, you know ;-)

-- 
Dave Abrahams
Boost Consulting
http://www.boost-consulting.com