Re: [Boost-bugs] [Boost C++ Libraries] #4296: has_iterator, has_const_iterator metafunctions

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #4296: has_iterator, has_const_iterator metafunctions
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2010-06-11 16:32:03

#4296: has_iterator, has_const_iterator metafunctions
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 Reporter:  Tomas Puverle (tomas dot puverle at morganstanley dot com)  |       Owner:  neilgroves    
     Type:  Feature Requests                                            |      Status:  new           
Milestone:  Boost 1.44.0                                                |   Component:  range         
  Version:  Boost 1.44.0                                                |    Severity:  Not Applicable
 Keywords:  has_iterator, has_const_iterator                            |  
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Comment(by steven_watanabe):

 This would be better implemented as

 {{{
 BOOST_MPL_HAS_XXX_TRAIT_DEF(type);
 template<class T>
 struct has_iterator : has_type<boost::range_iterator<T> > {};
 template<class T>
 struct has_const_iterator : has_type<boost::range_const_iterator<T> > {};
 }}}

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/4296#comment:1>
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