RE: [Boost-Users] Re: [boost] Iterator Adaptor Poll

From: Elliot Murphy (elliot.murphy_at_[hidden])
Date: 2002-07-26 09:37:17

I really like that example iterator (I was just typing up an email to
suggest it when I received this one). The example does something useful, and
you can easily see the difference between reading lines of input without the
iterator, and with the iterator.

The comment on page 5 of that book really emphasizes just how much this
example would benefit from using iterator_adaptor "Don't worry if you don't
yet understand why everything in the line_iterator class is there; parts of
it are only necessary for technical reasons."

-elliot

-----Original Message-----
From: Jeremy Siek [mailto:jsiek_at_[hidden]] 
Sent: Friday, July 26, 2002 10:29 AM
To: Boost-Users_at_[hidden]
Cc: boost_at_[hidden]
Subject: Re: [Boost-Users] Re: [boost] Iterator Adaptor Poll

Here's another idea for a "hello world" example. A rewrite of Matt
Austern's line_iterator example from his Generic Programming and the STL
book. The line_iterator call getline() and then return a std::string from
operator*.

On Fri, 26 Jul 2002, David Abrahams wrote:
dave>
dave> That's neat, but we already have the permutation adaptor, and I
dave> don't think it's really a simple enough example. Beman's example
dave> just makes a simple iterator, not an adaptor, and I think that's an
dave> important feature for a "hello, world"-type introduction.
dave>
dave> -Dave

----------------------------------------------------------------------
Jeremy Siek                          http://php.indiana.edu/~jsiek/
Ph.D. Student, Indiana Univ. B'ton   email: jsiek_at_[hidden]
C++ Booster (http://www.boost.org)   office phone: [phone]
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