Re: [Boost-users] Boost::MultiIndex dtor problem

16 Feb 2006


      Thanks Joaquin, the patch seems to have solved it.
Martin.

Joaquín Mª López Muñoz wrote:
...
Martin Eigel ha escrito:
...
Hi list,
I am encountering a problem with MultiIndex which can
be resolved by disabling SAFE_MODE. As I actually do
not get the problem in the code attached below I'd
like to ask for an explanation. The marked line of
code (i.e. the second iterator assignment) seems to be
responsible for blocking MultiIndex's dtor in
safe_mode.hpp:
void detach_all_iterators()
{
   for(safe_iterator_base*
it=header.next;it;it=it->next)it->cont=0;
}
Why is this and how can it correctly be avoided?
Hello Martin,
Thank you very much for reporting the problem and providing a
reproducible test case. This is a bug in the library, please try
replacing
the definition of detach_all_iterators in safe_mode.hpp with the
following:
void detach_all_iterators()
  {
    for(safe_iterator_base* it=header.next;it;it=it->next)it->cont=0;
    header.next=0;
  }
This will eliminate the blocking you observe in safe mode, please report
back. I'll be also committing this fix to the CVS asap.
Thanks for using Boost.MultiIndex and for contributing to improve it,
Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo