How does the C++ function library perform serialization and deserialization?

C Library Serialization and Deserialization Guide Serialization: Creates an output stream and converts it to an archive format. Serialize objects into archive. Deserialization: Creates an input stream and restores it from archive format. Deserialize objects from the archive. Practical example: Serialization: Creating an output stream. Create an archive object. Create and serialize objects into the archive. Deserialization: Create an input stream. Create an archive object. Create objects and deserialize them from the archive.

Guide to Serialization and Deserialization of C Library

Introduction

Serialization and Deserialization Conversion is the process of converting an object to a byte stream and reconstructing the object from the byte stream. In C, you can use function libraries to implement this functionality. This article will introduce how to use the binary archive function library (boost::archive) for serialization and deserialization.

Serialization

In order to serialize an object, we need to create an output stream and use the boost::archive::binary_oarchive class to Convert to archive format.

#include <boost/archive/binary_oarchive.hpp>

// 创建一个输出流
std::ofstream output("myfile.dat");

// 创建一个存档对象
boost::archive::binary_oarchive archive(output);

// 将对象序列化到存档中
archive << myObject;

Deserialization

To deserialize an object we need to create an input stream and use boost::archive::binary_iarchive Class to restore it from archive format.

#include <boost/archive/binary_iarchive.hpp>

// 创建一个输入流
std::ifstream input("myfile.dat");

// 创建一个存档对象
boost::archive::binary_iarchive archive(input);

// 从存档中反序列化对象
MyObject loadedObject;
archive >> loadedObject;

Practical case

Suppose we have a class named Person, which has name and age Two attributes. Here's how to serialize and deserialize it:

Serialization

#include <boost/archive/binary_oarchive.hpp>

// 创建一个输出流
std::ofstream output("person.dat");

// 创建一个存档对象
boost::archive::binary_oarchive archive(output);

// 创建一个 Person 对象
Person person("John", 30);

// 将 Person 对象序列化到存档中
archive << person;

Deserialization

#include <boost/archive/binary_iarchive.hpp>

// 创建一个输入流
std::ifstream input("person.dat");

// 创建一个存档对象
boost::archive::binary_iarchive archive(input);

// 创建一个 Person 对象
Person loadedPerson;

// 从存档中反序列化 Person 对象
archive >> loadedPerson;

std::cout << loadedPerson.getName() << ", " << loadedPerson.getAge() << std::endl;

Output

John, 30

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