ubuntu install rapidjson

sudo apt-get install rapidjson-dev

#include <algorithm>
#include <chrono>
#include <ctime>
#include <fstream>
#include <iostream>
#include "rapidjson/document.h"
#include "rapidjson/writer.h"
#include "rapidjson/stringbuffer.h"
#include <sstream>
#include <string>
#include <string.h>
#include <thread>
#include <unistd.h>
#include <uuid/uuid.h>

using namespace std; 
using namespace rapidjson;

void rapidDemo()
{
    const char* jsonValue="{"project":"rapidjson","stars":10}";
    Document doc;
    doc.Parse(jsonValue);

    rapidjson::Value& s=doc["stars"];
    s.SetInt(s.GetInt()*10);
    StringBuffer buffer;
    rapidjson::Writer<StringBuffer> writer(buffer);
    doc.Accept(writer);
    cout<<buffer.GetString()<<endl;
}

int main(int args,char **argv)
{
    rapidDemo();
}

g++ -g -std=c++2a -I. *.cpp -o h1 -luuid -rdynamic

./h1