[Boost-users] Very intermittent segmentation fault with boost::multiprecision

::value&&(!boost::multiprecision::detail::is_restricted_conversion >::type, boost::multiprecision::backends::cpp_dec_float<50u, int, void> >::value), void>::type*) (this=0x7fc440fe2f40, v=@0x7fc440fe1d60: 2.9500000000000002) at /usr/include/boost/multiprecision/number.hpp:64 #4 0x0000000000447332 in ib_trading_engine::tickPrice (this=0x1dd0650, tickerId=1002, field=BID, price=2.9500000000000002, attribs=...) at ../src/ib_trading_engine.cpp:700 #5 0x000000000049c5c4 in EDecoder::processTickPriceMsg (this=0x1dd30c0,

Team, Trying to get to the root of a very intermittent seg fault in my program. Here's the snipped (not able to reproduce) as the section of code is part of a callback and I'm not sure how to reproduce it. Here's the tickPrice method and the trace from gdb is below that ... any thoughts? TJ void ib_trading_engine::tickPrice(TickerId tickerId, TickType field, double price, const TickAttrib& attribs) { this -> current_time(); ticksnapshot_complete_ = false; last_tick spy_call_trade; last_tick spy_put_trade; last_tick qqq_call_trade; last_tick qqq_put_trade; spy_call_trade.contract(spy_call_contract_); spy_call_trade.datetime(local_time_); spy_call_trade.symbol(spy_call_symbol_); spy_put_trade.contract(spy_put_contract_); spy_put_trade.datetime(local_time_); spy_put_trade.symbol(spy_put_symbol_); qqq_call_trade.contract(qqq_call_contract_); qqq_call_trade.datetime(local_time_); qqq_call_trade.symbol(qqq_call_symbol_); qqq_put_trade.contract(qqq_put_contract_); qqq_put_trade.datetime(local_time_); qqq_put_trade.symbol(qqq_put_symbol_); try { if (tickerId == 1001 && field == TickType::LAST) { spy_strike_ = (unsigned int)std::trunc(price); ticksnapshot_complete_ = true; last_spy_price_ = bmp::cpp_dec_float_50(price); } else if (tickerId == 1002) { switch (field) { case TickType::BID: last_call_bid_ = bmp::cpp_dec_float_50(price); break; case TickType::ASK: last_call_ask_ = bmp::cpp_dec_float_50(price); break; case TickType::LAST: spy_call_trade.last(bmp::cpp_dec_float_50(price)); trade_queue_.push(spy_call_trade); break; default: break; } } else if (tickerId == 1003) { switch (field) { case TickType::BID: last_put_bid_ = bmp::cpp_dec_float_50(price); break; case TickType::ASK: last_put_ask_= bmp::cpp_dec_float_50(price); break; case TickType::LAST: spy_put_trade.last(bmp::cpp_dec_float_50(price)); trade_queue_.push(spy_put_trade); break; default: break; } } else if (field == TickType::LAST && tickerId == 2001) { qqq_strike_ = (unsigned int)std::trunc(price); ticksnapshot_complete_ = true; last_qqq_price_ = bmp::cpp_dec_float_50(price); } else if (tickerId == 2002) { switch (field) { case TickType::BID: last_call_bid_ = bmp::cpp_dec_float_50(price); break; case TickType::ASK: last_call_ask_ = bmp::cpp_dec_float_50(price); break; case TickType::LAST: qqq_call_trade.last(bmp::cpp_dec_float_50(price)); trade_queue_.push(qqq_call_trade); break; default: break; } } else if (tickerId == 2003) { switch (field) { case TickType::BID: last_put_bid_ = bmp::cpp_dec_float_50(price); break; case TickType::ASK: last_put_ask_= bmp::cpp_dec_float_50(price); break; case TickType::LAST: qqq_put_trade.last(bmp::cpp_dec_float_50(price)); trade_queue_.push(qqq_put_trade); break; default: break; } } } catch (const std::exception& exception) { std::cerr << "ib_trading_engine::tickPrice() exception: " << exception.what() << "\n"; } } Core was generated by `./atm_call_paper_2.1'. Program terminated with signal SIGSEGV, Segmentation fault. #0 0x00000000004221fd in boost::multiprecision::backends::cpp_dec_float<50u, int, void>::pow2 (p=30) at /usr/include/boost/multiprecision/cpp_dec_float.hpp:2936 2936 cpp_dec_float t; [Current thread is 1 (Thread 0x7fc4418027c0 (LWP 20245))] (gdb) bt #0 0x00000000004221fd in boost::multiprecision::backends::cpp_dec_float<50u, int, void>::pow2 (p=30) at /usr/include/boost/multiprecision/cpp_dec_float.hpp:2936 #1 0x00000000004157ba in boost::multiprecision::backends::cpp_dec_float<50u, int, void>::operator=<double> (this=0x7fc440fe2f40, a=2.9500000000000002) at /usr/include/boost/multiprecision/cpp_dec_float.hpp:2290 #2 0x0000000000411c17 in boost::multiprecision::backends::cpp_dec_float<50u, int, void>::cpp_dec_float<double>(double, std::enable_if::value), void>::type*) (this=0x7fc440fe2f40, val=2.9500000000000002) at /usr/include/boost/multiprecision/cpp_dec_float.hpp:249 #3 0x000000000040fcb6 in boost::multiprecision::number, (boost::multiprecision::expression_template_option)1>::number<double>(double const&, std::enable_if >::type, boost::multiprecision::backends::cpp_dec_float<50u, int, void> ptr=0x7fc43c0077a6 "00%", endPtr=0x7fc43c0077a6 "00%") at ../src/client/EDecoder.cpp:65 #6 0x00000000004a7ea6 in EDecoder::parseAndProcessMsg (this=0x1dd30c0, beginPtr=@0x7fc440fe33e8: 0x7fc43c007790 "1", endPtr=0x7fc43c0077a6 "00%") at ../src/client/EDecoder.cpp:2247 #7 0x00000000004bee93 in EReader::processMsgs (this=0x1dd30b0) at ../src/client/EReader.cpp:282 #8 0x0000000000444630 in ib_trading_engine::process_messages (this=0x1dd0650) at ../src/ib_trading_engine.cpp:405 #9 0x000000000044465f in ib_trading_engine::current_time (this=0x1dd0650) at ../src/ib_trading_engine.cpp:410 #10 0x0000000000447086 in ib_trading_engine::tickPrice (this=0x1dd0650, tickerId=1002, field=BID, price=2.96, attribs=...) at ../src/ib_trading_engine.cpp:666