将数据添加到矢量中的问题

2602470 / usr / lib 64 / libstdc ++。so.6.0.10 33d40ee000-33d40f5000 r - p 000ee000 fd：00 2602470 / usr / lib64 / libstdc ++。so.6.0.10 33d40f5000-33d40f7000 rw-p 000f5000 fd：00 2602470 /usr/lib64/libstdc++.so.6.0.10 33d40f7000-33d410a000 rw -p 33d40f7000 00:00 0 7f9f40000000-7f9f40021000 rw -p 7f9f40000000 00:00 0 7f9f40021000-7f9f44000000 --- p 7f9f40021000 00:00 0 7f9f449f6000-7f9f449f9000 rw-p 7f9f449f6000 00:00 0 7f9f44a14000-7f9f44a17000 rw-p 7f9f44a14000 00:00 0 7fff4ca01000-7fff4ca16000 rw-p 7ffffffea000 00 :00 0 [stack] 7fff4cbfe000-7fff4cc00000 r-xp 7fff4cbfe000 00:00 0 [vdso] $b $b ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0 [vsyscall]Hi all; I have a problem when inserting an element to a vector. All I want isreading some data from a file and putting them into a vector. But theprogram is crashing after pushing a data which has string value. Ireally do not understand why push_back() function is trying to removepreviously inserted data. Thanks for any help yatko// program #include <iostream>#include <fstream> #include <vector>#include <map>#include <cstdlib>#include <string.h>class VLProperty{ public:enum Aircraft{BO105,F16}; enum Type{INT,BOOL,LONG,FLOAT,DOUBLE,STRING,UNSPECIFIED};};struct VLPropertyData {unsigned id; // While the type isn''t transmitted, it is needed for the destructorVLProperty::Type type;union{int int_value;float float_value;char* string_value;}; //std::string string_value;VLPropertyData(){std::cout << "new data\n";} ~VLPropertyData() {if ((type == VLProperty::STRING) || (type ==VLProperty::UNSPECIFIED)){std::cout << string_value << " is deleted" << std::endl;delete [] string_value; }}}; class VLAIMultiplayer; class VLAIManager{public: static std::string sAircraftIdList[];static std::map<std::string,std::stringsAircraftModelName Map; /// maps from the aircraft string to the VLPropertyData vector typedef std::map< std::string, std::vector <VLPropertyData>* >ModelPropertyDataMap;//static ModelPropertyDataMap sModelPropertyDataMap; static ModelPropertyDataMap sAircraftPropertyDataMap; VLAIManager();~VLAIManager(); VLAIMultiplayer* addMultiplayer(const std::string& callsign, conststd::string& aircraft);std::vector <VLPropertyData>addProperties(const std::string& aircraft); private: /// maps from the callsign string to the VLAIMultiplayertypedef std::map<std::string, VLAIMultiplayer* MultiPlayerMap;MultiPlayerMap mMultiPlayerMap; };struct VLExternalMotionInfo; class VLMultiplayMgr{public: struct PropertyDesc{PropertyDesc(){}; PropertyDesc(const char* name, VLProperty::Type type){this->name = name;this->type = type;}; ~PropertyDesc(){}; const char* name;VLProperty::Type type;}; typedef std::map<unsigned int, PropertyDescIdPropertyDescMap;static IdPropertyDescMap sIdPropertyDescMap; static void Init(); private:/// maps from the callsign string to the FGAIMultiplayertypedef std::map<std::string, VLAIMultiplayer* MultiPlayerMap;MultiPlayerMap mMultiPlayerMap; };std::string VLAIManager::sAircraftIdList [] = {"","t38","bo105","F16","b1900d"};VLMultiplayMgr::IdPropertyDescMap VLMultiplayMgr::sIdPropertyDescMap =VLMultiplayMgr::IdPropertyDescMap(); voidVLMultiplayMgr::Init(){sIdPropertyDescMap[100] = VLMultiplayMgr::PropertyDesc("surface-positions/left-aileron-pos-norm", VLProperty::FLOAT);sIdPropertyDescMap[101] = VLMultiplayMgr::PropertyDesc("surface-positions/right-aileron-pos-norm", VLProperty::FLOAT);sIdPropertyDescMap[102] = VLMultiplayMgr::PropertyDesc("surface-positions/elevator-pos-norm", VLProperty::FLOAT);sIdPropertyDescMap[103] = VLMultiplayMgr::PropertyDesc("surface-positions/rudder-pos-norm", VLProperty::FLOAT);sIdPropertyDescMap[104] = VLMultiplayMgr::PropertyDesc("surface-positions/flap-pos-norm", VLProperty::FLOAT);sIdPropertyDescMap[105] = VLMultiplayMgr::PropertyDesc("surface-positions/speedbrake-pos-norm", VLProperty::FLOAT);sIdPropertyDescMap[106] = VLMultiplayMgr::PropertyDesc("gear/tailhook/position-norm", VLProperty::FLOAT);sIdPropertyDescMap[107] = VLMultiplayMgr::PropertyDesc("gear/launchbar/position-norm", VLProperty::FLOAT);sIdPropertyDescMap[108] = VLMultiplayMgr::PropertyDesc("gear/launchbar/state", VLProperty::STRING);sIdPropertyDescMap[109] = VLMultiplayMgr::PropertyDesc("gear/launchbar/holdback-position-norm", VLProperty::FLOAT);sIdPropertyDescMap[110] = VLMultiplayMgr::PropertyDesc("canopy/position-norm", VLProperty::FLOAT); sIdPropertyDescMap[200] = VLMultiplayMgr::PropertyDesc("gear/gear[0]/compression-norm", VLProperty::FLOAT);sIdPropertyDescMap[201] = VLMultiplayMgr::PropertyDesc("gear/gear[0]/position-norm", VLProperty::FLOAT);sIdPropertyDescMap[210] = VLMultiplayMgr::PropertyDesc("gear/gear[1]/compression-norm", VLProperty::FLOAT);sIdPropertyDescMap[211] = VLMultiplayMgr::PropertyDesc("gear/gear[1]/position-norm", VLProperty::FLOAT);sIdPropertyDescMap[220] = VLMultiplayMgr::PropertyDesc("gear/gear[2]/compression-norm", VLProperty::FLOAT);sIdPropertyDescMap[221] = VLMultiplayMgr::PropertyDesc("gear/gear[2]/position-norm", VLProperty::FLOAT);sIdPropertyDescMap[230] = VLMultiplayMgr::PropertyDesc("gear/gear[3]/compression-norm", VLProperty::FLOAT);sIdPropertyDescMap[231] = VLMultiplayMgr::PropertyDesc("gear/gear[3]/position-norm", VLProperty::FLOAT);sIdPropertyDescMap[240] = VLMultiplayMgr::PropertyDesc("gear/gear[4]/compression-norm", VLProperty::FLOAT);sIdPropertyDescMap[241] = VLMultiplayMgr::PropertyDesc("gear/gear[4]/position-norm", VLProperty::FLOAT); sIdPropertyDescMap[300] = VLMultiplayMgr::PropertyDesc("engines/engine[0]/n1", VLProperty::FLOAT);sIdPropertyDescMap[301] = VLMultiplayMgr::PropertyDesc("engines/engine[0]/n2", VLProperty::FLOAT);sIdPropertyDescMap[302] = VLMultiplayMgr::PropertyDesc("engines/engine[0]/rpm", VLProperty::FLOAT);sIdPropertyDescMap[310] = VLMultiplayMgr::PropertyDesc("engines/engine[1]/n1", VLProperty::FLOAT);sIdPropertyDescMap[311] = VLMultiplayMgr::PropertyDesc("engines/engine[1]/n2", VLProperty::FLOAT);sIdPropertyDescMap[312] = VLMultiplayMgr::PropertyDesc("engines/engine[1]/rpm", VLProperty::FLOAT);sIdPropertyDescMap[320] = VLMultiplayMgr::PropertyDesc("engines/engine[2]/n1", VLProperty::FLOAT);sIdPropertyDescMap[321] = VLMultiplayMgr::PropertyDesc("engines/engine[2]/n2", VLProperty::FLOAT);sIdPropertyDescMap[322] = VLMultiplayMgr::PropertyDesc("engines/engine[2]/rpm", VLProperty::FLOAT);sIdPropertyDescMap[330] = VLMultiplayMgr::PropertyDesc("engines/engine[3]/n1", VLProperty::FLOAT);sIdPropertyDescMap[331] = VLMultiplayMgr::PropertyDesc("engines/engine[3]/n2", VLProperty::FLOAT);sIdPropertyDescMap[332] = VLMultiplayMgr::PropertyDesc("engines/engine[3]/rpm", VLProperty::FLOAT);sIdPropertyDescMap[340] = VLMultiplayMgr::PropertyDesc("engines/engine[4]/n1", VLProperty::FLOAT);sIdPropertyDescMap[341] = VLMultiplayMgr::PropertyDesc("engines/engine[4]/n2", VLProperty::FLOAT);sIdPropertyDescMap[342] = VLMultiplayMgr::PropertyDesc("engines/engine[4]/rpm", VLProperty::FLOAT);sIdPropertyDescMap[350] = VLMultiplayMgr::PropertyDesc("engines/engine[5]/n1", VLProperty::FLOAT);sIdPropertyDescMap[351] = VLMultiplayMgr::PropertyDesc("engines/engine[5]/n2", VLProperty::FLOAT);sIdPropertyDescMap[352] = VLMultiplayMgr::PropertyDesc("engines/engine[5]/rpm", VLProperty::FLOAT);sIdPropertyDescMap[360] = VLMultiplayMgr::PropertyDesc("engines/engine[6]/n1", VLProperty::FLOAT);sIdPropertyDescMap[361] = VLMultiplayMgr::PropertyDesc("engines/engine[6]/n2", VLProperty::FLOAT);sIdPropertyDescMap[362] = VLMultiplayMgr::PropertyDesc("engines/engine[6]/rpm", VLProperty::FLOAT);sIdPropertyDescMap[370] = VLMultiplayMgr::PropertyDesc("engines/engine[7]/n1", VLProperty::FLOAT);sIdPropertyDescMap[371] = VLMultiplayMgr::PropertyDesc("engines/engine[7]/n2", VLProperty::FLOAT);sIdPropertyDescMap[372] = VLMultiplayMgr::PropertyDesc("engines/engine[7]/rpm", VLProperty::FLOAT);sIdPropertyDescMap[380] = VLMultiplayMgr::PropertyDesc("engines/engine[8]/n1", VLProperty::FLOAT);sIdPropertyDescMap[381] = VLMultiplayMgr::PropertyDesc("engines/engine[8]/n2", VLProperty::FLOAT);sIdPropertyDescMap[382] = VLMultiplayMgr::PropertyDesc("engines/engine[8]/rpm", VLProperty::FLOAT);sIdPropertyDescMap[390] = VLMultiplayMgr::PropertyDesc("engines/engine[9]/n1", VLProperty::FLOAT);sIdPropertyDescMap[391] = VLMultiplayMgr::PropertyDesc("engines/engine[9]/n2", VLProperty::FLOAT);sIdPropertyDescMap[392] = VLMultiplayMgr::PropertyDesc("engines/engine[9]/rpm", VLProperty::FLOAT); sIdPropertyDescMap[800] = VLMultiplayMgr::PropertyDesc("rotors/main/rpm", VLProperty::FLOAT);sIdPropertyDescMap[801] = VLMultiplayMgr::PropertyDesc("rotors/tail/rpm", VLProperty::FLOAT);sIdPropertyDescMap[810] = VLMultiplayMgr::PropertyDesc("rotors/main/blade[0]/position-deg", VLProperty::FLOAT);sIdPropertyDescMap[811] = VLMultiplayMgr::PropertyDesc("rotors/main/blade[1]/position-deg", VLProperty::FLOAT);sIdPropertyDescMap[812] = VLMultiplayMgr::PropertyDesc("rotors/main/blade[2]/position-deg", VLProperty::FLOAT);sIdPropertyDescMap[813] = VLMultiplayMgr::PropertyDesc("rotors/main/blade[3]/position-deg", VLProperty::FLOAT);sIdPropertyDescMap[820] = VLMultiplayMgr::PropertyDesc("rotors/main/blade[0]/flap-deg", VLProperty::FLOAT);sIdPropertyDescMap[821] = VLMultiplayMgr::PropertyDesc("rotors/main/blade[1]/flap-deg", VLProperty::FLOAT);sIdPropertyDescMap[822] = VLMultiplayMgr::PropertyDesc("rotors/main/blade[2]/flap-deg", VLProperty::FLOAT);sIdPropertyDescMap[823] = VLMultiplayMgr::PropertyDesc("rotors/main/blade[3]/flap-deg", VLProperty::FLOAT);sIdPropertyDescMap[830] = VLMultiplayMgr::PropertyDesc("rotors/tail/blade[0]/position-deg", VLProperty::FLOAT);sIdPropertyDescMap[831] = VLMultiplayMgr::PropertyDesc("rotors/tail/blade[1]/position-deg", VLProperty::FLOAT); sIdPropertyDescMap[900] = VLMultiplayMgr::PropertyDesc("sim/hitches/aerotow/tow/length", VLProperty::FLOAT);sIdPropertyDescMap[901] = VLMultiplayMgr::PropertyDesc("sim/hitches/aerotow/tow/elastic-constant", VLProperty::FLOAT);sIdPropertyDescMap[902] = VLMultiplayMgr::PropertyDesc("sim/hitches/aerotow/tow/weight-per-m-kg-m", VLProperty::FLOAT);sIdPropertyDescMap[903] = VLMultiplayMgr::PropertyDesc("sim/hitches/aerotow/tow/dist", VLProperty::FLOAT);sIdPropertyDescMap[904] = VLMultiplayMgr::PropertyDesc("sim/hitches/aerotow/tow/connected-to-property-node", VLProperty::BOOL);sIdPropertyDescMap[905] = VLMultiplayMgr::PropertyDesc("sim/hitches/aerotow/tow/connected-to-ai-or-mp-callsign", VLProperty::STRING);sIdPropertyDescMap[906] = VLMultiplayMgr::PropertyDesc("sim/hitches/aerotow/tow/brake-force", VLProperty::FLOAT);sIdPropertyDescMap[907] = VLMultiplayMgr::PropertyDesc("sim/hitches/aerotow/tow/end-force-x", VLProperty::FLOAT);sIdPropertyDescMap[908] = VLMultiplayMgr::PropertyDesc("sim/hitches/aerotow/tow/end-force-y", VLProperty::FLOAT);sIdPropertyDescMap[909] = VLMultiplayMgr::PropertyDesc("sim/hitches/aerotow/tow/end-force-z", VLProperty::FLOAT);sIdPropertyDescMap[930] = VLMultiplayMgr::PropertyDesc("sim/hitches/aerotow/is-slave", VLProperty::BOOL);sIdPropertyDescMap[931] = VLMultiplayMgr::PropertyDesc("sim/hitches/aerotow/speed-in-tow-direction", VLProperty::FLOAT);sIdPropertyDescMap[932] = VLMultiplayMgr::PropertyDesc("sim/hitches/aerotow/open", VLProperty::BOOL);sIdPropertyDescMap[933] = VLMultiplayMgr::PropertyDesc("sim/hitches/aerotow/local-pos-x", VLProperty::FLOAT);sIdPropertyDescMap[934] = VLMultiplayMgr::PropertyDesc("sim/hitches/aerotow/local-pos-y", VLProperty::FLOAT);sIdPropertyDescMap[935] = VLMultiplayMgr::PropertyDesc("sim/hitches/aerotow/local-pos-z", VLProperty::FLOAT); sIdPropertyDescMap[1001] = VLMultiplayMgr::PropertyDesc("controls/flight/slats", VLProperty::FLOAT);sIdPropertyDescMap[1002] = VLMultiplayMgr::PropertyDesc("controls/flight/speedbrake", VLProperty::FLOAT);sIdPropertyDescMap[1003] = VLMultiplayMgr::PropertyDesc("controls/flight/spoilers", VLProperty::FLOAT);sIdPropertyDescMap[1004] = VLMultiplayMgr::PropertyDesc("controls/gear/gear-down", VLProperty::FLOAT);sIdPropertyDescMap[1005] = VLMultiplayMgr::PropertyDesc("controls/lighting/nav-lights", VLProperty::FLOAT);sIdPropertyDescMap[1006] = VLMultiplayMgr::PropertyDesc("controls/armament/station[0]/jettison-all", VLProperty::BOOL); sIdPropertyDescMap[1100] = VLMultiplayMgr::PropertyDesc("sim/model/variant", VLProperty::INT); sIdPropertyDescMap[10001] = VLMultiplayMgr::PropertyDesc("sim/multiplay/transmission-freq-hz", VLProperty::STRING);sIdPropertyDescMap[10002] = VLMultiplayMgr::PropertyDesc("sim/multiplay/chat", VLProperty::STRING); sIdPropertyDescMap[10100] = VLMultiplayMgr::PropertyDesc("sim/multiplay/generic/string[0]", VLProperty::STRING);sIdPropertyDescMap[10101] = VLMultiplayMgr::PropertyDesc("sim/multiplay/generic/string[1]", VLProperty::STRING);sIdPropertyDescMap[10102] = VLMultiplayMgr::PropertyDesc("sim/multiplay/generic/string[2]", VLProperty::STRING);sIdPropertyDescMap[10103] = VLMultiplayMgr::PropertyDesc("sim/multiplay/generic/string[3]", VLProperty::STRING);sIdPropertyDescMap[10104] = VLMultiplayMgr::PropertyDesc("sim/multiplay/generic/string[4]", VLProperty::STRING);sIdPropertyDescMap[10105] = VLMultiplayMgr::PropertyDesc("sim/multiplay/generic/string[5]", VLProperty::STRING);sIdPropertyDescMap[10106] = VLMultiplayMgr::PropertyDesc("sim/multiplay/generic/string[6]", VLProperty::STRING);sIdPropertyDescMap[10107] = VLMultiplayMgr::PropertyDesc("sim/multiplay/generic/string[7]", VLProperty::STRING);sIdPropertyDescMap[10108] = VLMultiplayMgr::PropertyDesc("sim/multiplay/generic/string[8]", VLProperty::STRING);sIdPropertyDescMap[10109] = VLMultiplayMgr::PropertyDesc("sim/multiplay/generic/string[9]", VLProperty::STRING); sIdPropertyDescMap[10200] = VLMultiplayMgr::PropertyDesc("sim/multiplay/generic/float[0]", VLProperty::FLOAT);sIdPropertyDescMap[10201] = VLMultiplayMgr::PropertyDesc("sim/multiplay/generic/float[1]", VLProperty::FLOAT);sIdPropertyDescMap[10202] = VLMultiplayMgr::PropertyDesc("sim/multiplay/generic/float[2]", VLProperty::FLOAT);sIdPropertyDescMap[10203] = VLMultiplayMgr::PropertyDesc("sim/multiplay/generic/float[3]", VLProperty::FLOAT);sIdPropertyDescMap[10204] = VLMultiplayMgr::PropertyDesc("sim/multiplay/generic/float[4]", VLProperty::FLOAT);sIdPropertyDescMap[10205] = VLMultiplayMgr::PropertyDesc("sim/multiplay/generic/float[5]", VLProperty::FLOAT);sIdPropertyDescMap[10206] = VLMultiplayMgr::PropertyDesc("sim/multiplay/generic/float[6]", VLProperty::FLOAT);sIdPropertyDescMap[10207] = VLMultiplayMgr::PropertyDesc("sim/multiplay/generic/float[7]", VLProperty::FLOAT);sIdPropertyDescMap[10208] = VLMultiplayMgr::PropertyDesc("sim/multiplay/generic/float[8]", VLProperty::FLOAT);sIdPropertyDescMap[10209] = VLMultiplayMgr::PropertyDesc("sim/multiplay/generic/float[9]", VLProperty::FLOAT); sIdPropertyDescMap[10300] = VLMultiplayMgr::PropertyDesc("sim/multiplay/generic/int[0]", VLProperty::INT);sIdPropertyDescMap[10301] = VLMultiplayMgr::PropertyDesc("sim/multiplay/generic/int[1]", VLProperty::INT);sIdPropertyDescMap[10302] = VLMultiplayMgr::PropertyDesc("sim/multiplay/generic/int[2]", VLProperty::INT);sIdPropertyDescMap[10303] = VLMultiplayMgr::PropertyDesc("sim/multiplay/generic/int[3]", VLProperty::INT);sIdPropertyDescMap[10304] = VLMultiplayMgr::PropertyDesc("sim/multiplay/generic/int[4]", VLProperty::INT);sIdPropertyDescMap[10305] = VLMultiplayMgr::PropertyDesc("sim/multiplay/generic/int[5]", VLProperty::INT);sIdPropertyDescMap[10306] = VLMultiplayMgr::PropertyDesc("sim/multiplay/generic/int[6]", VLProperty::INT);sIdPropertyDescMap[10307] = VLMultiplayMgr::PropertyDesc("sim/multiplay/generic/int[7]", VLProperty::INT);sIdPropertyDescMap[10308] = VLMultiplayMgr::PropertyDesc("sim/multiplay/generic/int[8]", VLProperty::INT);sIdPropertyDescMap[10309] = VLMultiplayMgr::PropertyDesc("sim/multiplay/generic/int[9]", VLProperty::INT); }VLAIManager::ModelPropertyDataMapVLAIManager::sAircraftPropertyDataMap =VLAIManager::ModelPropertyDataMap(); std::map<std::string,std::string>VLAIManager::sAircraftModelNameMap =std::map<std::string,std::string>();std::vector<VLPropertyData>VLAIManager::addProperties(const std::string& aircraft){if (0 < sAircraftPropertyDataMap.count(aircraft))return sAircraftPropertyDataMap[aircraft][1]; std::vector <VLPropertyData>* constantProperties;std::vector <VLPropertyData>* varyingProperties;VLPropertyData propertyData;std::string modelName, id, value, cv;//VLPropertyData* ptr;//size_t pos = fileName.find(''/'');//fileName = fileName.substr(pos + 1, fileName.find(''/'', pos+1) - pos- 1) + ".txt"; std::ifstream myfile(("./data/" + aircraft + ".txt").data());std::cout << __FILE__ << ":" << __LINE__ << " " << aircraft << "\n";sAircraftPropertyDataMap[aircraft] = new std::vector<VLPropertyData>[2];constantProperties = &sAircraftPropertyDataMap[aircraft][0];varyingProperties = &sAircraftPropertyDataMap[aircraft][1]; if (myfile.is_open()){myfile >modelName;sAircraftModelNameMap[aircraft] = modelName; while (! myfile.eof() ){//ptr = new VLPropertyData;myfile >id >value >cv; propertyData.id = atoi(id.data()); if (VLMultiplayMgr::sIdPropertyDescMap.count(property Data.id) 0){propertyData.type =VLMultiplayMgr::sIdPropertyDescMap[propertyData.id].type;; // How we decode the remainder of the property depends on the typeswitch (propertyData.type) {case VLProperty::INT:case VLProperty::BOOL:case VLProperty::LONG:propertyData.int_value = atoi(value.data());//cout << pData->int_value << "\n";break;case VLProperty::FLOAT:case VLProperty::DOUBLE:propertyData.float_value = atof(value.data());//cout << pData->float_value << "\n";break;case VLProperty::STRING:case VLProperty::UNSPECIFIED: //propertyData.string_value = value;//propertyData.string_value = (char*)(newstd::string(value.c_str()))->c_str();int len;len = value.length(); propertyData.string_value = new char[len + 1]; strcpy(propertyData.string_value, value.data());propertyData.string_value[len] = ''\0''; //std::cout << propertyData.string_value << "\n";break; default:propertyData.float_value = atof(value.data());std::cout << "Unknown Prop type " << propertyData.id << " " <<propertyData.type << "\n";break;}if (cv == "c")constantProperties->push_back(propertyData);else if (cv == "v")varyingProperties->push_back(propertyData);elsestd::cout << "Property type c|v error\n";}else{// We failed to find the property. We''ll try the next packetimmediately.//cout << " Unknown\n";} myfile >cv; } myfile.close();} elsestd::cout << __FILE__ << ":" << __LINE__ << " "<< "Unable to openfile\n"; std::cout << __FILE__ << ":" << __LINE__ << " " << aircraft << "\n";std::vector<VLPropertyDatavar = sAircraftPropertyDataMap[aircraft][1]; std::cout << sAircraftPropertyDataMap.count(aircraft) << "\n"; return var; } VLAIManager::VLAIManager(){ }VLAIManager::~VLAIManager(){ } intmain(){ VLAIManager* mgr = new VLAIManager;VLMultiplayMgr::Init(); mgr->addProperties("bo105"); std::string name ("oktay"); std::cout << name.length()<< ":" << name.size() << "\n";std::cout << "ok\n";return 0;}//data file Aircraft/bo105/Models/bo105.xml10002 Hello c sim/multiplay/chat10300 1 c sim/multiplay/generic/int[0]10001 118500000 c sim/multiplay/transmission-freq-hz10100 Yellow_MedEvac c sim/multiplay/generic/string[0]10101 red-cross c sim/multiplay/generic/string[1]// output of program new data.../main.cpp:321 bo105Hello is deletedis deleted*** glibc detected *** /home/mvms/workspace/reading/Debug/reading:double free or corruption (fasttop): 0x0000000001f232a0 ***======= Backtrace: =========/lib64/libc.so.6[0x33c9a78158]/lib64/libc.so.6(cfree+0x76)[0x33c9a7a796]/home/mvms/workspace/reading/Debug/reading[0x408ed0]/home/mvms/workspace/reading/Debug/reading[0x408ee7]/home/mvms/workspace/reading/Debug/reading[0x408f04]/home/mvms/workspace/reading/Debug/reading[0x408f36]/home/mvms/workspace/reading/Debug/reading[0x40b666]/home/mvms/workspace/reading/Debug/reading[0x40b73c]/home/mvms/workspace/reading/Debug/reading[0x402137]/home/mvms/workspace/reading/Debug/reading[0x4069d5]/lib64/libc.so.6(__libc_start_main+0xfa)[0x33c9a1e32a]/home/mvms/workspace/reading/Debug/reading(__gxx_personality_v0+0x91)[0x4017e9]======= Memory map: ========00400000-00411000 r-xp 00000000 fd:00295669 /home/mvms/workspace/reading/Debug/reading00610000-00611000 rw-p 00010000 fd:00295669 /home/mvms/workspace/reading/Debug/reading01f1f000-01f40000 rw-p 01f1f000 00:000 [heap]33c8800000-33c881d000 r-xp 00000000 fd:002179394 /lib64/ld-2.8.so33c8a1c000-33c8a1d000 r--p 0001c000 fd:002179394 /lib64/ld-2.8.so33c8a1d000-33c8a1e000 rw-p 0001d000 fd:002179394 /lib64/ld-2.8.so33c9a00000-33c9b62000 r-xp 00000000 fd:002179395 /lib64/libc-2.8.so33c9b62000-33c9d62000 ---p 00162000 fd:002179395 /lib64/libc-2.8.so33c9d62000-33c9d66000 r--p 00162000 fd:002179395 /lib64/libc-2.8.so33c9d66000-33c9d67000 rw-p 00166000 fd:002179395 /lib64/libc-2.8.so33c9d67000-33c9d6c000 rw-p 33c9d67000 00:00 033c9e00000-33c9e84000 r-xp 00000000 fd:002179407 /lib64/libm-2.8.so33c9e84000-33ca083000 ---p 00084000 fd:002179407 /lib64/libm-2.8.so33ca083000-33ca084000 r--p 00083000 fd:002179407 /lib64/libm-2.8.so33ca084000-33ca085000 rw-p 00084000 fd:002179407 /lib64/libm-2.8.so33d0200000-33d0216000 r-xp 00000000 fd:002179408 /lib64/libgcc_s-4.3.0-20080428.so.133d0216000-33d0415000 ---p 00016000 fd:002179408 /lib64/libgcc_s-4.3.0-20080428.so.133d0415000-33d0416000 rw-p 00015000 fd:002179408 /lib64/libgcc_s-4.3.0-20080428.so.133d3e00000-33d3eee000 r-xp 00000000 fd:002602470 /usr/lib64/libstdc++.so.6.0.1033d3eee000-33d40ee000 ---p 000ee000 fd:002602470 /usr/lib64/libstdc++.so.6.0.1033d40ee000-33d40f5000 r--p 000ee000 fd:002602470 /usr/lib64/libstdc++.so.6.0.1033d40f5000-33d40f7000 rw-p 000f5000 fd:002602470 /usr/lib64/libstdc++.so.6.0.1033d40f7000-33d410a000 rw-p 33d40f7000 00:00 07f9f40000000-7f9f40021000 rw-p 7f9f40000000 00:00 07f9f40021000-7f9f44000000 ---p 7f9f40021000 00:00 07f9f449f6000-7f9f449f9000 rw-p 7f9f449f6000 00:00 07f9f44a14000-7f9f44a17000 rw-p 7f9f44a14000 00:00 07fff4ca01000-7fff4ca16000 rw-p 7ffffffea000 00:000 [stack]7fff4cbfe000-7fff4cc00000 r-xp 7fff4cbfe000 00:000 [vdso]ffffffffff600000-ffffffffff601000 r-xp 00000000 00:000 [vsyscall]推荐答案On Thu, 03 Jul 2008 04:45:02 -0700, oktayarslan wrote: On Thu, 03 Jul 2008 04:45:02 -0700, oktayarslan wrote: \t \t\t\t\tHi all; I have a problem when inserting an element to a vector. All I want is reading some data from a file and putting them into a vector. But the program is crashing after pushing a data which has string value. I really do not understand why push_back() function is trying to remove previously inserted data. Thanks for any help yatko // program Hi all;I have a problem when inserting an element to a vector. All I want isreading some data from a file and putting them into a vector. But theprogram is crashing after pushing a data which has string value. Ireally do not understand why push_back() function is trying to removepreviously inserted data.Thanks for any helpyatko// program [snip huge chunk of code] Blimey, you’’re joking surely? No way I for one am wading through that lot! Please see: http://www.parashift.com/c++-faq-lit...t.html#faq-5.8 with particular regard to the phrase "Post minimal code: just enough to demonstrate the problem". (I’’ll wager that in creating a minimal program demonstrating the issue you’’ll find that the problem actually exists elsewhere in your code). -- Lionel B[snip huge chunk of code] Blimey, you''re joking surely? No way I for one am wading through thatlot! Please see: http://www.parashift.com/c++-faq-lit...t.html#faq-5.8 with particular regard to the phrase "Post minimal code: just enough todemonstrate the problem". (I''ll wager that in creating a minimal program demonstrating the issueyou''ll find that the problem actually exists elsewhere in your code). --Lionel Bok*********@gmail.com wrote: ok*********@gmail.com wrote: \t \t\t\t\tHi all; I have a problem when inserting an element to a vector. All I want is reading some data from a file and putting them into a vector. But the program is crashing after pushing a data which has string value. Hi all;I have a problem when inserting an element to a vector. All I want isreading some data from a file and putting them into a vector. But theprogram is crashing after pushing a data which has string value. Without diving too deeply into your code (too much, post something _minimal_ that exhibits the problem), I venture the following conjecture: you are using a vector vector< some_user_defined_type > and some_user_defined_type does not satisfy the copy-constructible and assignable requirements due to mishandling of char* members. Without diving too deeply into your code (too much, post something _minimal_that exhibits the problem), I venture the following conjecture: you areusing a vector vector< some_user_defined_type > and some_user_defined_type does not satisfy the copy-constructible andassignable requirements due to mishandling of char* members. \t \t\t\t\tI really do not understand why push_back() function is trying to remove previously inserted data. I really do not understand why push_back() function is trying to removepreviously inserted data. It has to do that whenever the vector reallocates. [snip code] Best Kai-Uwe BuxIt has to do that whenever the vector reallocates. [snip code]Best Kai-Uwe BuxHi all; I am sorry for previous posting. Actually, the problem can be described as follows: I have a struct given below and I am trying to read properties from a file and store all properties into a std::vector < VLPropertyData> vector. But the program crashes whenever I put a property with string data into the vector. I have written some codes in the destructor and constructor and I see that push_back() function tries to remove some of previously inserted elements. Hence, this causes invalid pointer error as you can see in the outputs. Thanks yatko struct VLPropertyData { unsigned id; // While the type isn’’t transmitted, it is needed for the destructor VLProperty::Type type; union{ int int_value; float float_value; char* string_value; }; //std::string string_value; VLPropertyData() { std::cout << "new data\n"; } ~VLPropertyData() { if ((type == VLProperty::STRING) || (type == VLProperty::UNSPECIFIED)) { std::cout << string_value << " is deleted" << std::endl; delete [] string_value; } } };Hi all; I am sorry for previous posting. Actually, the problem can bedescribed as follows: I have a struct given below and I am trying to read properties from afile and store all properties into a std::vector < VLPropertyData>vector. But the program crashes whenever I put a property with stringdata into the vector. I have written some codes in the destructor andconstructor and I see that push_back() function tries to remove someof previously inserted elements. Hence, this causes invalid pointererror as you can see in the outputs. Thanks yatkostruct VLPropertyData {unsigned id; // While the type isn''t transmitted, it is needed for the destructorVLProperty::Type type;union{int int_value;float float_value;char* string_value;}; //std::string string_value;VLPropertyData(){std::cout << "new data\n";} ~VLPropertyData() {if ((type == VLProperty::STRING) || (type ==VLProperty::UNSPECIFIED)){std::cout << string_value << " is deleted" << std::endl;delete [] string_value; }} }; 这篇关于将数据添加到矢量中的问题的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！