I am trying to run blocking_udp_echo_client on MacOS X http://www.boost.org/doc/libs/1_35_0/doc/html/boost_asio/example/echo/blocki... I run it with argument 'localhost 9000' But the program crashes and this is the line in the source which crashes: udp::socket s(io_service, udp::endpoint(udp::v4(), 0)); this is the stack trace: #0 0x918c3e42 in __kill #1 0x918c3e34 in kill$UNIX2003 #2 0x9193623a in raise #3 0x91942679 in abort #4 0x940d96f9 in __gnu_debug::_Error_formatter::_M_error #5 0x0000e76e in __gnu_debug::_Safe_iterator<__gnu_norm::_List_iterator >, __gnu_debug_def::list, std::allocator > >

::_Safe_iterator at safe_iterator.h:124 #6 0x00014729 in boost::asio::detail::hash_map::bucket_type::bucket_type at hash_map.hpp:277 #7 0x00019e97 in std::_Construct::bucket_type, boost::asio::detail::hash_map::bucket_type> at stl_construct.h:81 #8 0x0001a457 in std::__uninitialized_fill_n_aux<__gnu_cxx::__normal_iterator::bucket_type*, __gnu_norm::vector::bucket_type, std::allocator::bucket_type> > , unsigned long, boost::asio::detail::hash_map::bucket_type> at stl_uninitialized.h:194 #9 0x0001a4e1 in std::uninitialized_fill_n<__gnu_cxx::__normal_iterator::bucket_type*, __gnu_norm::vector::bucket_type, std::allocator::bucket_type> > , unsigned long, boost::asio::detail::hash_map::bucket_type> at stl_uninitialized.h:218 #10 0x0001a509 in std::__uninitialized_fill_n_a<__gnu_cxx::__normal_iterator::bucket_type*, __gnu_norm::vector::bucket_type, std::allocator::bucket_type> > , unsigned long, boost::asio::detail::hash_map::bucket_type, boost::asio::detail::hash_map::bucket_type> at stl_uninitialized.h:310 #11 0x0001aa34 in __gnu_norm::vector::bucket_type, std::allocator::bucket_type> ::_M_fill_insert at vector.tcc:365 #12 0x0001acda in __gnu_norm::vector::bucket_type, std::allocator::bucket_type> ::insert at stl_vector.h:658 #13 0x0001ad81 in __gnu_norm::vector::bucket_type, std::allocator::bucket_type> ::resize at stl_vector.h:427 #14 0x0001ae3a in __gnu_debug_def::vector::bucket_type, std::allocator::bucket_type> ::resize at vector:169 #15 0x0001b7be in boost::asio::detail::hash_map::rehash at hash_map.hpp:221 #16 0x0001bbeb in boost::asio::detail::hash_map::hash_map at hash_map.hpp:67 #17 0x0001bc74 in boost::asio::detail::reactor_op_queue<int>::reactor_op_queue at reactor_op_queue.hpp:42 #18 0x0001bd24 in boost::asio::detail::kqueue_reactor<false>::kqueue_reactor at kqueue_reactor.hpp:86 #19 0x0001c000 in boost::asio::detail::service_registry::use_service at io_service.ipp:195 #21 0x0001c26d in boost::asio::detail::reactive_socket_service::reactive_socket_service at reactive_socket_service.hpp:111 #22 0x0001c344 in boost::asio::detail::service_registry::use_service > at service_registry.hpp:109 #23 0x0001c491 in boost::asio::use_service > at io_service.ipp:195 #24 0x0001c4d5 in boost::asio::datagram_socket_serviceboost::asio::ip::udp::datagram_socket_service at datagram_socket_service.hpp:95 #25 0x0001c59e in boost::asio::detail::service_registry::use_serviceboost::asio::ip::udp at service_registry.hpp:109 #26 0x0001c6eb in boost::asio::use_serviceboost::asio::ip::udp at io_service.ipp:195 #27 0x0001c711 in boost::asio::basic_io_objectboost::asio::ip::udp ::basic_io_object at basic_io_object.hpp:72 #28 0x0001c783 in boost::asio::basic_socketboost::asio::ip::udp ::basic_socket at basic_socket.hpp:108 #29 0x0001c865 in boost::asio::basic_datagram_socketboost::asio::ip::udp ::basic_datagram_socket at basic_datagram_socket.hpp:107 #30 0x000027bc in main at main.cpp:32

This is the gdb output: (gdb) continue /Developer/SDKs/MacOSX10.5.sdk/usr/include/c++/4.0.0/debug/safe_iterator.h:127: error: attempt to copy-construct an iterator from a singular iterator. Objects involved in the operation: iterator "this" @ 0x0x100420 { type = N11__gnu_debug14_Safe_iteratorIN10__gnu_norm14_List_iteratorISt4pairIiPN5boost4asio6detail16reactor_op_queueIiE7op_baseEEEEN15__gnu_debug_def4listISB_SaISB_EEEEE (mutable iterator); state = singular; } iterator "other" @ 0x0xbfffe8a4 { type = N11__gnu_debug14_Safe_iteratorIN10__gnu_norm14_List_iteratorISt4pairIiPN5boost4asio6detail16reactor_op_queueIiE7op_baseEEEEN15__gnu_debug_def4listISB_SaISB_EEEEE (mutable iterator); state = singular; } Program received signal: “SIGABRT”. (gdb) continue Program received signal: “?”. Does someone has any idea why this example does not work on mac osx? Thank you.