Re: [Boost-users] boost::zip_iterator does not work with std::istreambuf_iterator

Subject: Re: [Boost-users] boost::zip_iterator does not work with std::istreambuf_iterator
From: Dave Abrahams (dave_at_[hidden])
Date: 2011-09-04 12:07:45

on Sat Sep 03 2011, Krzysztof Żelechowski <giecrilj-AT-stegny.2a.pl> wrote:

>   1. boost::zip_iterator requires a readable iterator.
>   2. std::istreambuf_iterator is a readable iterator.
>   3. boost::zip_iterator cannot dereference std::istream_iterator because 
> std::istreambuf_iterator returns by value while boost::zip_iterator returns 
> by reference; the exact error message is
>   invalid initialization of non-const reference of type ‘char&’ from an 
> rvalue of type ‘std::istreambuf_iterator<char, std::char_traits<char> 
>>::char_type’
>
> Contradiction?  Am I missing anything?

You're probably not missing anything.  I think the docs are wrong.

-- 
Dave Abrahams
BoostPro Computing
http://www.boostpro.com