Boost C++ Libraries: Ticket #5216: boost::hash> Returns Only Two Values

attachment set

Wed, 23 Feb 2011 12:02:29 GMT

attachment → bad_hash.cpp

Bug demonstration program

Wed, 23 Feb 2011 12:04:30 GMT

Defining BOOST_HASH_NO_IMPLICIT_CASTS produces a static assertion failure which is better than the silent misbehavior.

The following makes things work, regardless of whether BOOST_HASH_NO_IMPLICIT_CASTS is defined:

namespace boost
{
   template <class T>
   std::size_t
   hash_value(boost::shared_ptr<T> const & _ptr)
   {
      return boost::hash_value(_ptr.get());
   }
}

Peter Dimov — Thu, 24 Feb 2011 23:24:58 GMT

(In [69260]) Add hash_value for shared_ptr; prevents hash_value( bool ) from being used. Refs #5216.

status changed

Peter Dimov — Thu, 24 Feb 2011 23:26:14 GMT

status new → assigned

status changed; resolution set

Peter Dimov — Tue, 22 Mar 2011 23:51:13 GMT

status assigned → closed
resolution → fixed

(In [70440]) Merge [69260] to release. Fixes #5216.