[Boost-bugs] [Boost C++ Libraries] #4000: is_empty and is_stateless don't work with inaccessible destructors

Subject: [Boost-bugs] [Boost C++ Libraries] #4000: is_empty and is_stateless don't work with inaccessible destructors
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2010-03-12 09:43:32

#4000: is_empty and is_stateless don't work with inaccessible destructors
--------------------------------+-------------------------------------------
 Reporter:  cskludev@…          |       Owner:         
     Type:  Bugs                |      Status:  new    
Milestone:  Boost 1.43.0        |   Component:  None   
  Version:  Boost 1.42.0        |    Severity:  Problem
 Keywords:                      |  
--------------------------------+-------------------------------------------
 The following code:

 struct Indestructible {
 private:
   ~Indestructible() {}
 };

 bool isEmpty = boost::is_empty<Indestructible>::value;
 bool isStateless = boost::is_stateless<Indestructible>::value;

 generates the following errors (on MSVC2008):

 warning C4624: 'boost::detail::empty_helper_t1<T>' : destructor could not
 be generated because a base class destructor is inaccessible

 This does compile on gcc (3.4.5 using MinGW).

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/4000>
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