id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
2951	Unwanted implicit conversion from std::auto_ptr to boost:;shared_ptr	William Tanenbaum <wmtan@…>	Peter Dimov	"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.

"	Bugs	closed	Boost 1.39.0	smart_ptr	Boost 1.38.0	Regression	fixed	implicit conversion shared pointer