Re: [boost] [gil::io] Feedback for scanline_read_iterator

Subject: Re: [boost] [gil::io] Feedback for scanline_read_iterator
From: Christian Henning (chhenning_at_[hidden])
Date: 2013-02-18 20:23:09

On Mon, Feb 18, 2013 at 8:13 PM, Mateusz Loskot <mateusz_at_[hidden]> wrote:
> AFAIU, the proposal is to support equivalent to this:
>
> scanline_read_iterator it =...
> std::advance (it, 7); // no I/O performed
> auto& buf = *it; // fetch 7th scanline data now
>

Ok, I just need to increase the position inside operator++. But this
brings up an interesting point. What would be the difference_type of a
scanline_read_iterator?

Christian