Question

我需要知道为什么这个程序在编译时会被终止。我不明白终止背后的原因是什么。请告诉我问题他们的解决方案。感谢。

#include<iostream.h>
class citizen{
  private:
          char* name;
          char* nationality;
  public:

         citizen(){
                   name = "No name is given";
                   nationality = "No nationality is given\n";
         }
         citizen(char* name, char* nationality){
            this->name = name;
            this->nationality = nationality;
         }

         void display(){
              cout << "Name: " << name << endl;
              cout << "Nationality: " << nationality << endl;
         }

         ~citizen(){
             if(name){
                      cout << endl << "\nGoing to delete: "<< name << endl;
                      delete []name;
             }
             if(nationality){
                      delete []nationality;
                      cout << "Going to nationality: "<< nationality << endl;
             }

         }

         citizen(const citizen &obj){
                       int size = sizeof(obj.name);
                       name = new char[size+1];
                       strcpy(name, obj.name);

                       int size2 = sizeof(obj.nationality);
                       nationality  = new char[size2 + 1];
                       strcpy(nationality, obj.nationality);
                       cout << "\nI'm copy construcotr\n";

         }
};

Answer 1

终止的原因是第一行，它应该是

#include <iostream>

（注意：没有.h）。旧标题iostream.h已被弃用（实际上它从未正式成为C ++的一部分）。

然后会出现更多错误，例如使用char*代替const char*，当您需要帮助解决问题时，请询问。

C ++程序终止

1 个答案: