Re: [Boost-bugs] [Boost C++ Libraries] #4141: typeof/msvc/typeof_impl specializes base class template in derived class

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #4141: typeof/msvc/typeof_impl specializes base class template in derived class
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2010-04-22 18:55:00

#4141: typeof/msvc/typeof_impl specializes base class template in derived class
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 Reporter:  jhs@…         |       Owner:  burbelgruff
     Type:  Bugs          |      Status:  new        
Milestone:  Boost 1.43.0  |   Component:  typeof     
  Version:  Boost 1.42.0  |    Severity:  Problem    
 Keywords:                |  
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Comment(by steven_watanabe):

 I believe that it is marked as a bugfeature because it specializes a base
 class template.  The tricks needed to make MSVC 8 and up accept a
 specialization of a base class template in a derived class are fairly
 arcane.  It only worked when the base class and the derived class were
 both specializations of the same template.  Also, declaring another
 id2type_impl in the derived class appears to be unnecessary.  I commented
 it out, and the tests still pass.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/4141#comment:1>
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