程式語言 - GNU - C/C++ - RapidJSON

參考資訊：
https://rapidjson.org/index.html

main.cpp

#include <rapidjson/document.h>
#include <rapidjson/rapidjson.h>
#include <rapidjson/writer.h>
#include <rapidjson/pointer.h>
#include <rapidjson/stringbuffer.h>
#include <iostream>
 
using namespace rapidjson;
 
int main(int argc, char **argv)
{
    const char *p0 = "0";
    const char *p1 = "1";

    Document jsondoc;
    Value arr(kArrayType);
    Value tmp(kArrayType);
    Value obj(kObjectType);

    Pointer("/r0/s0").Set(obj, "1", jsondoc.GetAllocator());
    arr.PushBack(obj, jsondoc.GetAllocator());
    
    tmp.PushBack(StringRef(p0), jsondoc.GetAllocator());
    tmp.PushBack(StringRef(p1), jsondoc.GetAllocator());
    tmp.PushBack("2", jsondoc.GetAllocator());
    tmp.PushBack("3", jsondoc.GetAllocator());
    Pointer("/r1").Set(obj, tmp, jsondoc.GetAllocator());
    arr.PushBack(obj, jsondoc.GetAllocator());

    Pointer("/tags").Set(jsondoc, arr);
 
    StringBuffer sb;
    Writer<StringBuffer> writer(sb);
    jsondoc.Accept(writer);
    printf("%s\n", sb.GetString());
    return 0;
}

編譯、執行

$ sudo apt-get install cmake jq -y

$ cd
$ git clone https://github.com/Tencent/rapidjson
$ cd rapidjson
$ git submodule update --init --recursive
$ mkdir build
$ cd build
$ cmake ..
$ make -j4
$ sudo make install

$ cd
$ g++ main.cpp -o test
$ ./test | jq
    {
      "tags": [
        {
          "r0": {
            "s0": "1"
          }
        },
        {
          "r1": [
            "0",
            "1",
            "2",
            "3"
          ]
        }
      ]
    }