基类指针的vector怎么存储派生类

最新推荐文章于 2022-09-25 11:19:35 发布

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最新推荐文章于 2022-09-25 11:19:35 发布

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本文链接：https://blog.youkuaiyun.com/qq_33628827/article/details/89007731

本文展示了一个使用C++和Boost库进行对象序列化的示例。通过定义几个类层次结构并实现序列化功能，演示了如何将对象状态保存到文件中。主要关注点在于序列化过程及其实现细节。

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// SaveData.cpp : 定义控制台应用程序的入口点。
//

#include "stdafx.h"

#include <boost/archive/text_oarchive.hpp>
#include <boost/archive/text_iarchive.hpp>
#include <boost/serialization/vector.hpp>

#include <string>
#include <vector>
#include <iostream>
#include <sstream>
#include <fstream>

class BaseOperator;

class findLineOperator;

BOOST_CLASS_EXPORT(BaseOperator)

BOOST_CLASS_EXPORT(findLineOperator)

using namespace std;

class BaseNode
{
public:
   virtual void print();
   std::string a="this is BaseNode a";
   std::string b="this is BaseNode b";
   //为使当前的结构能支持序列化，得加入下面的代码段
private:
   friend class boost::serialization::access;
   template<class Archive>
   void serialize(Archive & ar, const unsigned int version)
   {
       ar & a;
       ar & b;
   }
};

class BaseOperator :public BaseNode
{
public:
   std::string c = "this is BaseOperator c";
   std::string d = "this is BaseOperator d";
   virtual void print();
   //为使当前的结构能支持序列化，得加入下面的代码段
private:
   friend class boost::serialization::access;
   template<class Archive>
   void serialize(Archive & ar, const unsigned int version)
   {
       ar & boost::serialization::base_object<BaseNode>(*this);
       ar & c;
       ar & d;
   }
};
class findLineOperator :public BaseOperator {

public:
   int id=4;
   std::string strName="me";
   std::string strValue="you";

   virtual void print();
   findLineOperator() {}
   findLineOperator(int id, std::string strName, std::string strValue)
   {
       this->id = id;
       this->strName = strName;
       this->strValue = strValue;
   }
};
void BaseNode::print()
{

}
void BaseOperator::print()
{

}
void findLineOperator::print()
{

}

class ToolBlock
{
public:
std::vector<BaseNode*> listMR;

};

int main(int argc, _TCHAR* argv[])
{
std::stringstream ss;

   //序列化
   //findLineOperator p1(11, "anderson", "neo"); //被序列化的对象
   ToolBlock *tool = new ToolBlock();

BaseOperator *mr = new findLineOperator(99,"eric","lili");
BaseOperator *mr2=new findLineOperator;

std::vector<void*> listMR;

   //压入对象
   tool->listMR.push_back(mr);
   tool->listMR.push_back(mr2);

return 0;
}