[Boost-bugs] [Boost C++ Libraries] #2951: Unwanted implicit conversion from std::auto_ptr to boost:; shared_ptr

Subject: [Boost-bugs] [Boost C++ Libraries] #2951: Unwanted implicit conversion from std::auto_ptr to boost:; shared_ptr
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2009-04-16 22:22:21

#2951: Unwanted implicit conversion from std::auto_ptr to boost:;shared_ptr
------------------------------------------------+---------------------------
 Reporter:  William Tanenbaum <wmtan_at_[hidden]>  |       Owner:  pdimov    
     Type:  Bugs                                |      Status:  new       
Milestone:  Boost 1.39.0                        |   Component:  smart_ptr 
  Version:  Boost 1.38.0                        |    Severity:  Regression
 Keywords:  implicit conversion shared pointer  |  
------------------------------------------------+---------------------------
 In boost 1.38, the explicit keyword was dropped from this constructor
 template in shared_ptr.hpp:

 template<class Ap>
 shared_ptr( AP r, typename boost::detail::sp_enable_if_auto_ptr<Ap,
 int>::type = 0 ): px( r.get() ), pn()
 {
    typename Ap::element_type * tmp = r.get();
    pn = boost::detail::shared_count( r );
    boost::detail::sp_enable_shared_from_this( pn, tmp, tmp );
 }

 The explicit keyword was there in boost 1.34.  This causes implicit
 conversions from auto_ptr to shared_ptr, which is undesirable.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/2951>
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