Re: [Boost-bugs] [Boost C++ Libraries] #7100: unorderd_set<shared_ptr<T> > > - insert does not increment count

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #7100: unorderd_set<shared_ptr<T> > > - insert does not increment count
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2012-07-09 02:46:50

#7100: unorderd_set<shared_ptr<T> > > - insert does not increment count
------------------------------------------------+---------------------------
  Reporter:  Rich Eakin <reakinator@…>          |       Owner:  danieljames             
      Type:  Bugs                               |      Status:  new                     
 Milestone:  To Be Determined                   |   Component:  unordered               
   Version:  Boost 1.51.0                       |    Severity:  Problem                 
Resolution:                                     |    Keywords:  unordered_set shared_ptr
------------------------------------------------+---------------------------

Comment (by Rich Eakin <reakinator@…>):

 Thanks for the fix, I can confirm that insert increments the ref count
 with boost::unordered_set<boost::shared_ptr<T< >.

 However, I think it has created a problem when using std::tr1::shared_ptr.
 Albeit an odd setup, the following example produces a compile time error:

 {{{

 #include "boost/unordered_set.hpp"
 #include <tr1/memory>

 int main()
 {
         boost::unordered_set<std::tr1::shared_ptr<int> > mySet;
         std::tr1::shared_ptr<int> intSP( new int( 1 ) );

         mySet.insert( intSP ); // <-- Error: (Semantic Issue) "no matching
 function for call to 'hash_value'"

     return 0;
 }
 }}}

 I have attached the full error log from clang.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/7100#comment:3>
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