Re: [Boost-bugs] [Boost C++ Libraries] #8011: iterator_range::size() is not SFINAE-friendly

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #8011: iterator_range::size() is not SFINAE-friendly
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2013-02-13 01:09:04

#8011: iterator_range::size() is not SFINAE-friendly
---------------------------------------------------------+------------------
  Reporter:  Jonathan Wakely <jwakely.boost@…>           |       Owner:  neilgroves
      Type:  Feature Requests                            |      Status:  new       
 Milestone:  To Be Determined                            |   Component:  range     
   Version:  Boost 1.52.0                                |    Severity:  Problem   
Resolution:                                              |    Keywords:            
---------------------------------------------------------+------------------

Comment (by nathanridge):

 Regarding the original request for making iterator_range::size() SFINAE-
 friendly: I am a little hesitant about it because of the effect on the
 code's readability. I am curious:
 - Do you recommend this as a general technique to apply to member
 functions of templates where the member function only makes sense for a
 subset of the template parameters? If not, what makes
 iterator_range::size() special?
 - Do you see this technique used commonly elsewhere (for example,
 libstdc++)?

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/8011#comment:6>
Boost C++ Libraries <http://www.boost.org/>
Boost provides free peer-reviewed portable C++ source libraries.