Hi, Im defining a class with a multi_index_container as base. When i construct a instance of this class, and the multi_index_container is called, the program crashes. It even crashes, when i dont use it as a base class. Like this: struct query { query(unsigned int id_, unsigned short pr_, unsigned short type_, unsigned short status_); virtual ~query(); enum estatus{WAITING=0, WORKING=1, BUFFERED=2}; unsigned int id; unsigned short pr; unsigned short type; unsigned short status; typedef boost::shared_ptr<query> pointer; }; struct query_rank_key:composite_key< query::pointer, member<query,unsigned short,&query::status>, member<query,unsigned short,&query::pr>, member<query,unsigned int,&query::id>

{};

typedef multi_index_container< query::pointer, indexed_by< ordered_non_unique< query_rank_key #if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) ,composite_key_result_less<query_rank_key::result_type> #endif >, ordered_unique< tag<tid>,member<query,unsigned int,&query::id> >

queue_set;

class queue : public queue_set { public: queue(){}; virtual ~queue(){}; typedef boost::shared_ptr<queue> pointer; }; This compiles just fine, but if i run the code i get the following backtrace after a Sigmentation Abort. It happens, when the queue::queue() is called. Someone a idee whats it about? Im new to boost::multi_index, so maybe i misunderstud something? Thank you Manuel Jung Ps.: boost 1.33.1, g++ 4.0 #0 0xffffe410 in __kernel_vsyscall () #1 0xb7a1b770 in raise () from /lib/tls/i686/cmov/libc.so.6 #2 0xb7a1cef3 in abort () from /lib/tls/i686/cmov/libc.so.6 #3 0xb7a14dbb in __assert_fail () from /lib/tls/i686/cmov/libc.so.6 #4 0xb7b2d591 in pthread_mutex_lock () from /lib/tls/i686/cmov/libpthread.so.0 #5 0x080809ab in scoped_lock (this=0xbff658f8, m=@0x80f15cc) at /usr/local/include/boost/detail/lwm_pthreads.hpp:72 #6 0x08080a2c in boost::multi_index::detail::safe_iterator_base::detach ( this=0xbff659c0) at /usr/local/include/boost/multi_index/detail/safe_mode.hpp:202 #7 0x08080bfd in ~safe_iterator_base (this=0xbff659c0) at /usr/local/include/boost/multi_index/detail/safe_mode.hpp:127 #8 0x08085f9d in ~safe_iterator (this=0xbff659c0) at /usr/local/include/boost/multi_index/detail/safe_mode.hpp:217 #9 0x08085fc1 in ~index_iterator (this=0xbff659c0) at /usr/local/include/boost/multi_index/detail/index_iterator.hpp:72 #10 0x0808a7a5 in boost::multi_index::detail::ordered_index<boost::multi_index::member<query, unsigned int, &(query::id)>, std::less<unsigned int>, boost::multi_index---Type <return> to continue, or q <return> to quit--- ::detail::nth_layer<2, boost::shared_ptr<query>, boost::multi_index::indexed_by<boost::multi_index::ordered_non_unique<query_r ank_key, mpl_::na, mpl_::na>, boost::multi_index::ordered_unique<boost::multi_index::tag<tid, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, boost::multi_index::member<query, unsigned int, &(query::id)>, mpl_::na>, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, std::allocator<boost::shared_ptr<query> > >, boost::mpl::v_item<tid, boost::mpl::vector0<mpl_::na>, 0>, boost::multi_index::detail::ordered_unique_tag>::invariant_ (this=0x80f15fc) at /usr/local/include/boost/multi_index/ordered_index.hpp:766 #11 0x0808b2dd in boost::multi_index::detail::ordered_index<query_rank_key, std::less<boost::multi_index::composite_key_result<boost::multi_index::compos ite_key<boost::shared_ptr<query>, boost::multi_index::member<query, unsigned short, &(query::status)>, boost::multi_index::member<query, unsigned short, &(query::pr)>, boost::multi_index::member<query, unsigned int, &(query::id)>, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> > >, boost::mul---Type <return> to continue, or q <return> to quit--- ti_index::detail::nth_layer<1, boost::shared_ptr<query>, boost::multi_index::indexed_by<boost::multi_index::ordered_non_unique<query_r ank_key, mpl_::na, mpl_::na>, boost::multi_index::ordered_unique<boost::multi_index::tag<tid, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, boost::multi_index::member<query, unsigned int, &(query::id)>, mpl_::na>, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, std::allocator<boost::shared_ptr<query> > >, boost::mpl::vector0<mpl_::na>, boost::multi_index::detail::ordered_non_unique_tag>::invariant_ ( this=0x80f15fc) at /usr/local/include/boost/multi_index/ordered_index.hpp:800 #12 0x0808b314 in boost::multi_index::multi_index_container<boost::shared_ptr<query>, boost::multi_index::indexed_by<boost::multi_index::ordered_non_unique<query_r ank_key, mpl_::na, mpl_::na>, boost::multi_index::ordered_unique<boost::multi_index::tag<tid, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, boost::multi_index::member<query, unsigned int, &(query::id)>, mpl_::na>, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na,---Type <return> to continue, or q <return> to quit--- mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, std::allocator<boost::shared_ptr<query> > >::invariant_ (this=0x80f15f4) at /usr/local/include/boost/multi_index_container.hpp:591 #13 0x0808b33b in boost::multi_index::multi_index_container<boost::shared_ptr<query>, boost::multi_index::indexed_by<boost::multi_index::ordered_non_unique<query_r ank_key, mpl_::na, mpl_::na>, boost::multi_index::ordered_unique<boost::multi_index::tag<tid, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, boost::multi_index::member<query, unsigned int, &(query::id)>, mpl_::na>, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, std::allocator<boost::shared_ptr<query> > >::check_invariant_ (this=0x80f15f4) at /usr/local/include/boost/multi_index_container.hpp:596 #14 0x08083bab in boost::multi_index::detail::obj_scope_guard_impl0<boost::multi_index::multi_i ndex_container<boost::shared_ptr<query>, boost::multi_index::indexed_by<boost::multi_index::ordered_non_unique<query_ rank_key, mpl_::na, mpl_::na>, boost:---Type <return> to continue, or q <return> to quit--- :multi_index::ordered_unique<boost::multi_index::tag<tid, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, boost::multi_index::member<query, unsigned int, &(query::id)>, mpl_::na>, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, std::allocator<boost::shared_ptr<query> > >, void (boost::multi_index::multi_index_container<boost::shared_ptr<query>, boost::multi_index::indexed_by<boost::multi_index::ordered_non_unique<query_r ank_key, mpl_::na, mpl_::na>, boost::multi_index::ordered_unique<boost::multi_index::tag<tid, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, boost::multi_index::member<query, unsigned int, &(query::id)>, mpl_::na>, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, std::allocator<boost::shared_ptr<query> > >::*)() const>::execute (this=0xbff65bd4) at /usr/local/include/boost/multi_index/detail/scope_guard.hpp:187 #15 0x08083bd7 in boost::multi_index::detail::scope_guard_impl_base::safe_execute<b---Type <return> to continue, or q <return> to quit--- oost::multi_index::detail::obj_scope_guard_impl0<boost::multi_index::multi_in dex_container<boost::shared_ptr<query>, boost::multi_index::indexed_by<boost::multi_index::ordered_non_unique<query_ rank_key, mpl_::na, mpl_::na>, boost::multi_index::ordered_unique<boost::multi_index::tag<tid, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, boost::multi_index::member<query, unsigned int, &(query::id)>, mpl_::na>, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, std::allocator<boost::shared_ptr<query> > >, void (boost::multi_index::multi_index_container<boost::shared_ptr<query>, boost::multi_index::indexed_by<boost::multi_index::ordered_non_unique<query_r ank_key, mpl_::na, mpl_::na>, boost::multi_index::ordered_unique<boost::multi_index::tag<tid, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, boost::multi_index::member<query, unsigned int, &(query::id)>, mpl_::na>, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, std::allocator<boost::sh---Type <return> to continue, or q <return> to quit--- ared_ptr<query> > >::*)() const> > (j=@0xbff65bd4) at /usr/local/include/boost/multi_index/detail/scope_guard.hpp:68 #16 0x08083bfc in ~obj_scope_guard_impl0 (this=0xbff65bd4) at /usr/local/include/boost/multi_index/detail/scope_guard.hpp:186 #17 0x08085f1b in multi_index_container (this=0x80f15f4, args_list=@0xbff65c28, al=@0xbff65c27) at /usr/local/include/boost/multi_index_container.hpp:162 #18 0x0808a069 in queue (this=0x80f15f0) at src/slots.h:91