如何找到核心转储?将其缩小到构造函数和函数

我收到核心转储错误（内存泄漏），我不确定它来自哪里。我尝试一次运行程序部分并最大程度地减少问题。任何帮助将不胜感激。谢谢

基本头文件。

#ifndef VEHICLE_H
#define VEHICLE_H
#include <iostream>
#include <string>
using namespace std;
class Vehicle{
        protected:
                char *name;
                static ostream *out ;
        public:
                Vehicle();
                Vehicle(string &n);
                Vehicle (const Vehicle & b);
                ~Vehicle();
                Vehicle& operator =(const Vehicle &b);
                virtual void print(void) = 0;
                virtual void read(void) = 0;
};

基本构造函数

#include "vehicle.h"
#include <iostream>
#include <cstring>
ostream * Vehicle :: out = &cout;
Vehicle :: Vehicle(){
        name = new char;
        strcpy(name, "");
}
Vehicle :: Vehicle(string &n){
        int len = n.length()+ 1;
        delete [] name;
        name = new char[len];
        strcpy(name,n.c_str());
}
Vehicle :: Vehicle(const Vehicle & v){
        int len = strlen(v.name)+ 1;
        delete [] name;
        name = new char[len];
        strcpy(name,v.name);
}
Vehicle & Vehicle::operator = (const Vehicle &b){
        if(this == &b){
                return *this;
        }
        int len = strlen(b.name)+ 1;
        delete [] name;
        name = new char[len];
        strcpy(name,b.name);
        return *this;
}
Vehicle:: ~Vehicle(){
        delete [] name;
}

派生头文件

#ifndef MOTORVEHICLE_H
#define MOTORVEHICLE_H
#include <cstring>
#include "vehicle.h"
class MotorVehicle: public Vehicle{
        protected:
                string make;
                string model;
                double mpg;
        public:
                MotorVehicle();
                MotorVehicle (const string &n,const string &m = "",const string &md = "", const double &mp = 0.0);
                //accessor functions
                string getName()const;
                string getMake()const;
                string getModel()const;
                double getMpg()const;
                ostream & getOut();
                //mutator functions
                string setName();
                void setMake();
                void setModel();
                void setMpg();
                void setOut(ostream & o);
                //virtual functions
                void print();
                void read();
};
#endif // MOTORVEHICLE_H

机动车辆实施。这是错误发生的地方。

#include "motorVehicle.h"
#include <string>
#include <iostream>
MotorVehicle:: MotorVehicle(): Vehicle(), make(""), model(""), mpg(0.0){
        make = "";
        model = "";
        mpg = 0.0;
}
MotorVehicle :: MotorVehicle(const string &n, const string &m, const string &md, const double &mp){
        int len = n.length()+ 1;
        delete [] name;
        name = new char[len];
        strcpy(name,n.c_str());
        make = m;
        model = md;
        mpg = mp;
}
//accessor functions
string MotorVehicle :: getName()const{
        string temp(name);
        return temp;
}
string MotorVehicle :: getMake()const {
        return make;
}
string MotorVehicle :: getModel()const {
        return model;
}
double MotorVehicle :: getMpg()const {
        return mpg;
}
ostream & MotorVehicle  :: getOut(){
        return *out;
}
//mutator functions
string MotorVehicle :: setName(){
        cerr << "dododd" <<endl;
        string nm1;
        cin >> nm1;
        int len = nm1.length()+ 1;
        delete [] name;
        name = new char[len];
        strcpy(name,nm1.c_str());

}
void MotorVehicle :: setMake(){
        cin >> make;
}
void MotorVehicle :: setModel(){
        cin >> model;
}
void MotorVehicle :: setMpg(){
        cin >> mpg;
}
void MotorVehicle :: setOut(ostream & o){
        out = &o;
}
//virtual function
void MotorVehicle :: print(){
        *out << name << make << model << mpg <<" ";
}
void MotorVehicle :: read(){

        *out << "Please enter name for this Vehicle:  " << endl;
        setName();
        *out << "Please enter make for this Vehicle:  " << endl;
        setMake();
        *out << "Please enter model for this Vehicle:  " << endl;
        setModel();
        *out << "Please enter miles per gallon for this Vehicle:  " << endl;
        setMpg();

}

卡车割台

#ifndef TRUCK_H
#define TRUCK_H
#include "motorVehicle.h"
class Truck: public MotorVehicle{
        protected:
                double cargoCapacity;
        public:
                Truck();
                Truck (string &n,string &m,string &md, double &mp , double &cp);
                //accessor functions
                double getcargoCapacity()const;
                //mutator functions
                void setcargoCapacity();
                //virtual functions
                void print();
                void read();
};
#endif

卡车实施

#include "truck.h"
Truck :: Truck() : MotorVehicle(){
        cargoCapacity = 0.0;
}

Truck :: Truck(string &n, string &m, string &md, double &mp, double &cp ): MotorVehicle (n,m,md,mp){
        cargoCapacity = 0.0;
}

double Truck :: getcargoCapacity()const{
        return cargoCapacity;
}
void Truck :: setcargoCapacity(){
        cin >> cargoCapacity;
}
void Truck :: print(){
        *out << name << make << model << mpg << cargoCapacity << " ";
}
void Truck :: read(){
        *out << "Please enter cargo capacity for this Vehicle:  " << endl;
        setcargoCapacity();
        *out << "Please enter name for this Vehicle:  " << endl;
        setName();
        *out << "Please enter make for this Vehicle:  " << endl;
        setMake();
        *out << "Please enter model for this Vehicle:  " << endl;
        setModel();
        *out << "Please enter MPG for this Vehicle:  " << endl;
        setMpg();
}

汽车头

#ifndef CAR_H
#define CAR_H
#include "motorVehicle.h"
class Car: public MotorVehicle{
        private:
                string trim;
        public:
                Car();
                Car (string &n,string &m,string &md,double &mp, string &t);
                //accessor functions
                string getTrim()const;
                //mutator functions
                void setTrim();
                //virtual functions
                void print();
                void read();
};

#endif // CAR_H

汽车实施

#include "car.h"
Car :: Car (){
        MotorVehicle();
}
Car :: Car(string &n, string &m, string &md, double &mp, string &t) : MotorVehicle (n,m,md,mp){
        trim = "";
}
string Car :: getTrim()const{
        return trim;
}
void Car :: setTrim(){
        cin >> trim;
}
void Car :: print(){
        *out << name << make << model << mpg << trim << " ";
}
void Car :: read (){
        *out << "Please enter trim for this Vehicle:  " << endl;
        setTrim();
        *out << "Please enter name for this Vehicle:  " << endl;
        setName();
        *out << "Please enter make for this Vehicle:  " << endl;
        setMake();
        *out << "Please enter model for this Vehicle:  " << endl;
        setModel();
        *out << "Please enter MPG for this Vehicle:  " << endl;
        setMpg();

}

主要

#include <iostream>
#include <fstream>
#include <string>
#include <vector>
#include <typeinfo>
#include "motorVehicle.h"
// car.h & truck.h included twice to test #ifndef #define ... #endif structure
#include "car.h"
#include "car.h"
#include "truck.h"
#include "truck.h"
typedef vector<MotorVehicle *> vectorOfMotorVehicle;
using namespace std;
// prompt the user for the Vehicle type to create, and get the reply
string prompt(void);
int main() {
   vectorOfMotorVehicle v;         // store dynamically created MotorVehicles
                                   // or objects derived from MotorVehicles
   int           numVehicles = 0;  // denotes how many MotorVehicles we have
   string        reply;            // indicates type of MotorVehicle to build
   bool          error = false;    // set when a user response is in error
   string        outputLocation;   // where the output of print() will go
   ofstream     *out = NULL;
   MotorVehicle *m;
   // uncomment following line to test that Vehicle is an abstract base class
   // Vehicle theVehicle;
   // push a Vehicle into the vector so  first "real" Vehicle is at position 1
   m = new MotorVehicle("None");
   v.push_back(m);
   // chose where the output will go
   cout << "Where would you like the output?  ";
   cin  >> outputLocation;
   if (outputLocation == "stdout") {
      ; // no action to take, because stdout (i.e., cout) is the default
   } else if (outputLocation == "stderr") {
      v[0]->setOut(cerr);
   } else {
      out = new ofstream;
      out->open(outputLocation.c_str());
      if (out->fail()) {
         cerr << "Error:  error writing to " << outputLocation << endl;
         return 1;
      }
      v[0]->setOut(*out);
   }
   // get the type of Vehicle to create
   reply = prompt();
   // loop, reading vehicle descriptions, until a "quit" command is received
   while (reply != "quit") {
      // create the new MotorVehicle object and push it into the vector
      switch (toupper(reply[0])) {
        case 'T' : m = (MotorVehicle *) (new Truck);
                   v.push_back(m);
                   break;
        case 'C' : m = (MotorVehicle *) (new Car);
                   v.push_back(m);
                   break;
        case 'Q' : reply = "quit";
                   continue;
        default  : cerr << "Incorrect responsenn";
                   error = true;
      }
      // if no error, then we have a new Vehicle to initialize via read()
      if (!error) {
         numVehicles++;
         v[numVehicles]->read();
      }
      // reset error flag, and request a new Vehicle type
      error = false;
      reply = prompt();
   }
   // report on what Vehicles were created to test read() and print()
   for (int i = 0; i <= numVehicles; i++) {
      //*out << "Vehicle " << i << endl;
      // print the Vehicle characteristics (attributes)
      v[i]->print();
      //*out << endl;
      // free the storage for this Vehicle
      delete v[i];
   }
   // if we opened an output file, then close it
   if (out != NULL) {
      out->close();
      delete out;
   }
   return 0;
}
// prompt the user for the Vehicle type to create, and get the reply
string prompt() {
   string reply;    // the user reponse to the prompt
   // prompt for and get user response
   cout << "nWhich type of vehicle would you like to initialize"
        << "n--car or truck (or "quit" to exit):  ";
   cin  >> reply;
   return reply;
}

当派生类尝试调用 setName 函数时，它会不断抛出核心转储。泄漏从何而来？

谢谢