Re: [Boost-bugs] [Boost C++ Libraries] #10215: Defaulted functions not fully supported in VC 2013

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #10215: Defaulted functions not fully supported in VC 2013
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2014-12-02 22:07:58

#10215: Defaulted functions not fully supported in VC 2013
--------------------------------------+-------------------------
  Reporter:  leek@…                   |      Owner:  johnmaddock
      Type:  Bugs                     |     Status:  new
 Milestone:  To Be Determined         |  Component:  config
   Version:  Boost Development Trunk  |   Severity:  Problem
Resolution:                           |   Keywords:
--------------------------------------+-------------------------

Comment (by bdavis@…):

 I'm encountering this as well.  The OpenGL wrapper library Oglplus has the
 option to use Boost Config instead of an empirical testing step, but boost
 config reports defaulted functions supported on VS 2013, even though
 there's only partial support.   Unfortunately oglplus uses features that
 aren't implemented on VS 2013, resulting in a compile failure.

 While a more fine grained approach might solve this, it would be
 complicated (how exactly do you break down all the various C++11 features
 into bits that are supported and bits that arent?  How do downstream
 developers actually use that information?).  I think a more conservative
 approach is called for.  If a feature isn't ''fully'' supported, then the
 corresponding NO_CXX11_FEATURE_NAME define should be turned on.

 You could add a 'BOOST_PARTIAL_CXX11_FEATURE_NAME' flag indicating partial
 support without delving into the issue of what parts are actually
 supported, so that downstream developers could potentially do something,
 knowing that by relying on a PARTIAL declaration, they were treading on
 thin ice.

 Failing to turn on the flag when the feature isn't fully supported leads
 to situations like mine, where I file  a bug in a library I'm using,  only
 to discover that the upstream dev is using Boost and C++, apparently
 correctly, but that because my compiler only has partial support for a
 feature, I can't build without jumping through hoops.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/10215#comment:1>
Boost C++ Libraries <http://www.boost.org/>
Boost provides free peer-reviewed portable C++ source libraries.